Dry quenching desulfurization feeding system

Abstract

The utility model relates to the technical field of metallurgical coking, in particular to a dry quenching desulfurization feeding system, which comprises a desulfurization bin, a chain bucket conveyor, a regeneration tower and a purification tower, a level gage is mounted in the desulfurization bin, a grid type discharge valve is mounted at the bottom of the desulfurization bin, the grid type discharge valve is connected with a frequency converter, and the frequency converter is connected with the chain bucket conveyor. The chain bucket conveyor is installed at the bottom of the purification tower, the frequency converter is installed at the bottom of the purification tower, the regeneration tower is internally provided with a material returning alarm structure, the bottom of the purification tower is provided with a long-shaft discharger, and the frequency converter is respectively in joint control with the material level meter, the chain bucket conveyor, the material returning alarm structure and the long-shaft discharger. Flexible control over the feeding speed and the feeding amount is achieved, material blocking is avoided, the feeding precision is improved, abnormal feeding is avoided through joint control, the utilization rate of activated carbon is increased, and the service life of the chain bucket conveyor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical coking technology, in particular to a dry coke quenching desulfurization feeding system. Background Art

[0002] Conventional 140T CDQ desulfurization system refilling adopts manual refilling, and the refilling process is realized by opening the plug under the desulfurization silo. When manually refilling, you must first confirm the material amount at the top of the silo before refilling, and then decide the amount of refilling based on personal experience. The feeding speed of the refilling amount is controlled by the size of the plug opening. If the refilling amount exceeds the load of the chain bucket, it will cause the chain bucket to overload and cause a material blockage accident; if the refilling amount is too large, it will cause a regeneration tower return accident; and if the refilling amount is too small, not only will the refilling time be long and the efficiency be low, but it will also cause the regeneration tower to be low in material, triggering the hot air furnace to shut down, causing the desulfurization system to stop running.

[0003] Due to the current manual addition, the amount of material added varies from person to person, and the personnel cannot leave the site during addition. The amount of material added needs to be adjusted at any time according to the system operation status. If the equipment stops abnormally during the addition process and the on-site personnel fail to discover it in time, it will also cause a blockage accident. In addition, the central control and the site need to maintain close cooperation, making a simple addition process cumbersome and difficult, which is not conducive to production. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a dry quenching desulfurization feeding system, which provides a material level meter in the desulfurization silo and installs a format unloading valve at the lower part, and adopts a frequency converter to control the rotation speed of the format unloading valve to control the feeding amount, and the operation of the format unloading valve is interlocked with the chain breaking protection of the chain bucket conveyor, the material level meter of the silo, the return material of the regeneration tower and the long shaft unloading device under the purification tower to realize automatic feeding, so as to improve the utilization efficiency of equipment and materials and reduce the operation cost.

[0005] The technical solution adopted by the utility model is:

[0006] A dry coke quenching desulfurization feeding system comprises a desulfurization silo, a chain bucket conveyor, a regeneration tower and a purification tower, a material level meter is installed in the desulfurization silo, a format unloading valve is installed at the bottom of the desulfurization silo, the format unloading valve is connected to a frequency converter, the chain bucket conveyor is arranged between the desulfurization silo and the regeneration tower, and is used to transport the material in the desulfurization silo to the regeneration tower, the regeneration tower is connected to the purification tower, and is used to transport the activated carbon formed by regeneration to the purification tower, a return material alarm structure is provided in the regeneration tower, a long-axis discharger is installed at the bottom of the purification tower, and the frequency converter is respectively controlled by the material level meter, the chain bucket conveyor, the return material alarm structure and the long-axis discharger.

[0007] Furthermore, the material level meter includes a high material level meter, a middle material level meter and a low material level meter.

[0008] Furthermore, the chain bucket conveyor is provided with a chain break protection structure, and the chain break protection structure is controlled in conjunction with the frequency converter.

[0009] Furthermore, a screening and conveying mechanism is connected to the bottom of the regeneration tower, and the screening and conveying mechanism is provided with an activated carbon material outlet and a fine ash outlet, and the activated carbon material outlet is connected to the top of the purification tower.

[0010] Furthermore, a smoke inlet and a smoke outlet are provided on the side of the purification tower, the smoke inlet and the smoke outlet are arranged in an offset manner up and down, and the smoke outlet is located above the smoke inlet.

[0011] Furthermore, the bottom of the desulfurization silo is configured to be conical.

[0012] The beneficial effects of the utility model are as follows:

[0013] The utility model comprises a desulfurization silo, a chain bucket conveyor, a regeneration tower and a purification tower. A material level meter is installed in the desulfurization silo, a format unloading valve is installed at the bottom of the desulfurization silo, and the format unloading valve is connected to a frequency converter. The chain bucket conveyor is arranged between the desulfurization silo and the regeneration tower, and is used to transport the material of the desulfurization silo to the regeneration tower. The regeneration tower is connected to the purification tower and is used to transport the activated carbon formed by regeneration to the purification tower. A return material alarm structure is provided in the regeneration tower. A frequency converter is installed at the bottom of the purification tower. There is a long-axis discharger, and the frequency converter is respectively controlled with the level meter, the chain bucket conveyor, the return material alarm structure and the long-axis discharger. The utility model has a simple structure and a reasonable design. The frequency converter is set to control the speed of the format unloading valve to achieve flexible control of the feeding speed and the feeding amount, avoid blockage, and improve the feeding accuracy. The frequency converter is respectively controlled with the level meter, the chain bucket conveyor, the return material alarm structure and the long-axis discharger to avoid abnormal feeding, so as to improve the utilization rate of activated carbon and the service life of the chain bucket conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure in some embodiments of the present application.

[0015] Description of reference numerals:

[0016] Desulfurization silo 1, material level meter 11, format unloading valve 12, chain bucket conveyor 2, chain break protection structure 21, regeneration tower 3, return material alarm structure 31, purification tower 4, long axis unloader 41, flue gas inlet 42, flue gas outlet 43, screening and conveying mechanism 5. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1 As shown, the CDQ desulfurization feeding system described in this embodiment includes a desulfurization silo 1, a chain bucket conveyor 2, a regeneration tower 3 and a purification tower 4, a level meter 11 is installed in the desulfurization silo 1, a format unloading valve 12 is installed at the bottom of the desulfurization silo 1, and the format unloading valve 12 is connected to a frequency converter, the chain bucket conveyor 2 is arranged between the desulfurization silo 1 and the regeneration tower 3, and is used to transport the material in the desulfurization silo 1 to the regeneration tower 3, the regeneration tower 3 is connected to the purification tower 4, and is used to transport the activated carbon formed by regeneration to the purification tower 4, a return material alarm structure 31 is provided in the regeneration tower 3, and a long-axis discharger 41 is installed at the bottom of the purification tower 4, and the frequency converter is respectively controlled with the level meter 11, the chain bucket conveyor 2, the return material alarm structure 31 and the long-axis discharger 41.

[0021] This embodiment has a simple structure and a reasonable design. By setting a frequency converter to control the speed of the format unloading valve 12, flexible control of the feeding speed and the feeding amount can be achieved to avoid blockage and improve the feeding accuracy. The frequency converter is respectively controlled with the level meter 11, the chain bucket conveyor 2, the return material alarm structure 31 and the long-axis unloader 41 to avoid abnormal feeding, thereby improving the utilization rate of the activated carbon and the service life of the chain bucket conveyor 2.

[0022] Specifically, in this embodiment, the frequency converter controls the speed of the format unloading valve 12 to control the feeding amount, and because the frequency converter is respectively linked with the material level meter 11, the chain bucket conveyor 2, the return material alarm structure 31 and the long-axis unloader 41, the operation of the format unloading valve 12 is interlocked with the chain bucket conveyor 2, the material level meter 11 of the silo, the return material of the regeneration tower 3 and the long-axis unloader under the purification tower 4. When in use, when the chain bucket conveyor 2 is in the chain break protection mode, the format unloading valve 12 stops running immediately, and the long-axis unloader under the purification tower 4 and the format valve are prohibited from running at the same time; the silo stops the format unloading valve 12 when the material level is low, opens the long axis under the purification tower 4, and alarms to prompt that the material replenishment is abnormal and the silo needs to be fed. When the regeneration tower 3 returns the material alarm, the format unloading valve 12 stops running immediately, thereby realizing automatic linkage feeding control, realizing portable and accurate feeding, and improving feeding efficiency and feeding effect.

[0023] In some embodiments, the material level meter 11 includes a high material level meter 11 , a middle material level meter 11 and a low material level meter 11 .

[0024] In this embodiment, the material level meter 11 specifically includes a high material level meter 11, a middle material level meter 11 and a low material level meter 11, so as to realize the monitoring of three different material levels in the silo, so as to facilitate the overall feeding process, and its structure is simple and practical.

[0025] In some embodiments, the chain bucket conveyor 2 is provided with a chain break protection structure 21, and the chain break protection structure 21 is controlled in conjunction with the frequency converter.

[0026] In this embodiment, it is specifically shown that the chain bucket conveyor 2 is provided with a chain breaking protection structure 21 to protect the accumulated materials, so as to facilitate the early handling of abnormal situations and realize more stable feeding and conveying.

[0027] In some embodiments, a screening and conveying mechanism 5 is connected to the bottom of the regeneration tower 3 , and the screening and conveying mechanism 5 is provided with an activated carbon material outlet and a fine ash outlet, and the activated carbon material outlet is connected to the top of the purification tower 4 .

[0028] In this embodiment, it is specifically shown that the activated carbon regenerated in the regeneration tower 3 is screened out fine ash through the screening and conveying mechanism 5 and then sent to the purification tower 4. The structure is simple and the utilization rate of the activated carbon is improved.

[0029] In some embodiments, a smoke inlet 42 and a smoke outlet 43 are provided on the side of the purification tower 4 . The smoke inlet 42 and the smoke outlet 43 are staggered and arranged vertically, and the smoke outlet 43 is located above the smoke inlet 42 .

[0030] In this embodiment, the purification tower 4 is specifically shown to be provided with a fume inlet 42 and a fume outlet 43 to facilitate the purification process.

[0031] In some embodiments, the bottom of the desulfurization silo 1 is configured to be conical.

[0032] In this embodiment, by setting the bottom of the desulfurization silo 1 to be conical, the accumulation of materials can be avoided. The structure is simple and the material discharge effect is good. It is convenient to rotate the material through the format unloading valve 12 to send it into the chain bucket conveyor 2 for transportation.

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A dry quenching desulfurization feeding system, characterized in that: It includes a desulfurization silo, a chain bucket conveyor, a regeneration tower and a purification tower. A level meter is installed in the desulfurization silo. A format unloading valve is installed at the bottom of the desulfurization silo. The format unloading valve is connected to a frequency converter. The chain bucket conveyor is arranged between the desulfurization silo and the regeneration tower to transport the material in the desulfurization silo to the regeneration tower. The regeneration tower is connected to the purification tower to transport the activated carbon formed by regeneration to the purification tower. A return material alarm structure is provided in the regeneration tower. A long-axis unloader is installed at the bottom of the purification tower. The frequency converter is respectively controlled by the level meter, the chain bucket conveyor, the return material alarm structure and the long-axis unloader.

2. The dry quenching desulfurization feeding system according to claim 1 is characterized in that: The material level meter includes a high material level meter, a middle material level meter and a low material level meter.

3. The dry quenching desulfurization feeding system according to claim 1 is characterized in that: The chain bucket conveyor is provided with a chain breaking protection structure, and the chain breaking protection structure is controlled in conjunction with the frequency converter.

4. The CDQ desulfurization feeding system according to claim 1, characterized in that: The bottom of the regeneration tower is connected to a screening and conveying mechanism, and the screening and conveying mechanism is provided with an activated carbon material outlet and a fine ash outlet, and the activated carbon material outlet is communicated with the top of the purification tower.

5. The CDQ desulfurization feeding system according to claim 1, characterized in that: A smoke inlet and a smoke outlet are arranged on the side of the purification tower. The smoke inlet and the smoke outlet are arranged with an interval and staggered arrangement up and down, and the smoke outlet is located above the smoke inlet.

6. The CDQ desulfurization feeding system according to claim 1, characterized in that: The bottom of the desulfurization silo is configured to be conical.

Images