Emergency treatment port for petroleum coke reaction circulating gas inlet system in calcining furnace

Abstract

The utility model discloses an emergency treatment port for a petroleum coke reaction circulating gas inlet system in a calcining furnace, and mainly relates to carbon production. Comprising an emergency pipeline connected with an air inlet pipeline, an emergency cover is arranged on the emergency pipeline, and when the air inlet pipeline is in negative pressure, the emergency cover can be automatically opened; one end of the emergency cover is fixedly connected with a pipe opening of the emergency pipeline, the other end of the emergency cover is provided with an inner edge, the pipe opening of the emergency pipeline is provided with a flange, and the inner edge is matched with the flange. And the emergency cover is made of a soft rubber material. The gas inlet device has the advantages that the gas inlet device is used in a gas inlet system for reaction of petroleum coke in a calcining furnace, the influence on the reaction process of calcined petroleum coke caused by emergency situations of a gas inlet assembly in the gas inlet system can be reduced, and gas is fed into the calcining furnace body through the emergency pipeline port after the emergency situations occur; therefore, the temperature drop rate in the calcining furnace body is slowed down, and sudden temperature drop in the calcining furnace body is avoided.

Description

Technical Field

[0001] The utility model relates to the field of carbon production, in particular to an emergency treatment port for the reaction circulation air inlet system of petroleum coke in a calciner. Background Technique

[0002] The statements in this part only provide background technical information related to the utility model, and do not necessarily constitute prior art.

[0003] The existing production method of calcined petroleum coke is generally to calcine petroleum coke through a calciner. Most of the existing calciners control the calcination temperature in the furnace by the oxygen intake at the air inlet. When heating up, it is necessary to manually open all the air inlet gate plates on the outer side of the calciner furnace body, so that the oxygen intake in the calciner rapidly increases, making the combustion in the calciner sufficient. However, in the heating-up stage of calcining petroleum coke, all the air inlet gate plates need to be opened to increase the oxygen content in the furnace body through natural wind, resulting in a slow heating rate of the furnace body. Therefore, only multiple air inlets on each furnace body can be used to increase the oxygen content in the furnace body to achieve the effect of assisting combustion. However, when calcining petroleum coke, generally dozens of furnace bodies are calcined simultaneously. When heating up, it is necessary to open all the air inlet gate plates on each furnace body, which requires a large amount of manual control work and the temperature increase effect is slow. When heating the furnace body, since the air inlet is natural wind, there is a large temperature difference between the natural wind and the inside and outside of the furnace body. The large temperature difference between the inside and outside of the furnace body will cause frequent thermal expansion and contraction of the wall of the calciner furnace body, ultimately leading to cracking of the outer wall of the calciner, directly shortening the service life of the furnace body and increasing the cost input of the factory.

[0004] For the calcining workshop of the entire carbon production, there is pulse bag dust removal equipment in the calcining workshop to filter waste gases such as dust generated by crushing calcined petroleum coke. Under the action of the suction force of the induced draft fan, the dust-containing gas enters the dust collector. Large particles of dust in the gas inside the dust collector are filtered under the action of gravity, and fine dust adheres to the outer surface of the cloth bag through the filtering action of the cloth bag. After filtration, the cloth bag is cleaned of dust by a pressurized pulse air cannon, so that the dust in the cloth bag filter holes falls off, and the purified gas passes through the cloth bag and is directly discharged into the atmosphere through the ventilation duct. This dust removal method has drawbacks. The cloth bags of the pulse bag dust removal equipment need to be replaced regularly. Once the cloth bags are broken or the filtering effect deteriorates, if not discovered in time, the soot will be directly discharged into the atmosphere, affecting the environment in the atmosphere and causing an increase in pm2.5 in the environment, because the gas passing through the pulse dust removal equipment is continuously transported by the induced draft fan and finally discharged into the atmosphere after dust removal. Therefore, the gas discharged from the ventilation duct of the pulse bag dust removal equipment is combined with the air inlet of the furnace body 3, and the two are connected to the furnace body through the connecting pipeline 8.

[0005] To prevent the impact on the overall operation of the calciner when the pulse bag dust removal equipment stops or when the air volume of the pulse dust removal equipment is insufficient, a booster fan is connected to the air inlet pipeline, and the booster fan provides air volume compensation. In case of emergencies such as power outages in the workshop, which cause the air inlet equipment to malfunction and affect the temperature inside the calciner, an emergency ventilation opening is required for emergency handling. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide an emergency treatment opening for the intake air system of the petroleum coke reaction circulation in the calciner. It can be used in the intake air system of the petroleum coke reaction in the calciner, and can reduce the impact on the reaction process of calcining petroleum coke caused by emergencies in the intake components of the intake air system. After an emergency occurs, air is introduced into the interior of the calciner body through the emergency pipeline junction, thereby slowing down the rate of temperature drop inside the calciner body and avoiding a sudden drop in the temperature inside the calciner body.

[0007] To achieve the above object, the present utility model is realized through the following technical solutions:

[0008] The emergency treatment opening for the intake air system of the petroleum coke reaction circulation in the calciner includes an emergency pipeline connected to the air inlet pipeline. An emergency cover is provided on the emergency pipeline. When the air inlet pipeline is under negative pressure, the emergency cover automatically opens by elastic force.

[0009] One end of the emergency cover is fixedly connected to the pipe orifice of the emergency pipeline. The other end of the emergency cover is provided with an inner edge, and the pipe orifice of the emergency pipeline is provided with a flange, and the inner edge cooperates with the flange. The material of the emergency cover is soft rubber material.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] It is used in the intake air system of the petroleum coke reaction in the calciner, and can reduce the impact on the reaction process of calcining petroleum coke caused by emergencies in the intake components of the intake air system. After an emergency occurs, air is introduced into the interior of the calciner body through the emergency pipeline junction, thereby slowing down the rate of temperature drop inside the calciner body and avoiding a sudden drop in the temperature inside the calciner body. Brief Description of the Drawings

[0012] Att Figure 1 is the overall view of the connection between the device of the present utility model and the air inlet pipeline of the calciner.

[0013] Att Figure 2 is the overall view of the air inlet pipeline in the present utility model.

[0014] Att Figure 3 is the cross-sectional view of the air inlet pipeline in the present utility model.

[0015] The reference numerals shown in the drawings:

[0016] 1. Inlet air pipeline; 2. Emergency pipeline; 3. Emergency cover; 4. Inner edge; 5. Flange; 6. Calciner. Detailed implementation manners

[0017] The following further elaborates the present utility model in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.

[0018] The present utility model relates to an emergency treatment port for the reaction circulation intake air system in a calciner for petroleum coke. Continuing the description based on the content in the background technology, once an emergency occurs inside the factory, causing the fan connected to the pulse dust removal equipment to stop working, the intake air volume in the body of the calciner 6 is insufficient, which further leads to the fact that the raw petroleum coke inside the calciner 6 cannot reach the specific temperature requirements during calcination, and further will cause the waste of the raw petroleum coke inside the entire calciner 6, resulting in huge losses.

[0019] As shown in the specification drawings Figure 1 Before describing the emergency pipeline 2, briefly describe the inlet air pipeline 1. Since there are multiple calciners (28) working together in the calcination workshop, there are multiple inlet air pipelines 1 supplying oxygen to the inside of the calciner 6. In the past, the emergency ventilation pipelines were all manually opened by workers at the cover body at the emergency pipe orifice. Due to the large number of calciners 6, the efficiency of opening the emergency cover 3 is slow in case of an emergency. Therefore, further improvements are made:

[0020] The main structure includes as shown in the specification drawings Figure 2 and Figure 3 As shown, a plurality of emergency pipelines 2 are provided on each inlet air pipeline 1. An emergency cover 3 is eccentrically provided on the emergency pipeline 2. The emergency cover 3 is connected to the outer edge of the emergency pipeline 2. One end of the emergency cover 3 is fixedly connected to the pipe orifice of the emergency pipeline 2. The other end of the emergency cover 3 is provided with an inner edge 4. A flange 5 is provided at the pipe orifice of the emergency pipeline 2. The inner edge 4 cooperates with the flange 5. The material of the emergency cover 3 is rubber. When the inlet air pipeline 1 is working normally, the pressure inside the inlet air pipeline 1 is high and greater than the external atmospheric pressure. The emergency cover 3 is subjected to a pressure towards the outside of the emergency pipeline 2. At this time, the inner edge 4 cooperates with the flange 5 to limit the emergency cover 3, so that the emergency cover 3 can maintain the air pressure stability inside the inlet air pipeline 1.

[0021] When there is a negative pressure in the air inlet pipeline 1, due to the action of atmospheric pressure, the emergency cover 3 at the orifice of the emergency pipeline 2 first receives an inward pressure. Since the emergency cover 3 is eccentrically arranged at the emergency orifice, the inner edge 4 of the emergency cover 3 receives a force towards the outside of the pipeline, and the inner edge 4 disengages from the outer edge. Then, the movable end of the emergency cover 3 enters the emergency orifice from the outside of the emergency pipeline 2. Since the material of the emergency cover 3 is rubber, the gap between the emergency cover 3 and the emergency orifice ventilates the calciner 6, enabling the calciner 6 to maintain air intake through natural wind, avoiding emergencies that could cause the temperature in the calciner 6 to drop due to lack of oxygen, resulting in the scrapping of the whole furnace of petroleum coke raw materials, and even making it difficult to clean the calciner 6 due to the tar generated during the calcination of petroleum coke.

[0022] In summary, this device can be used in the air intake system for the reaction of petroleum coke in the calciner 6, which can reduce the impact on the reaction process of calcining petroleum coke caused by emergencies in the air intake components of the air intake system. After an emergency occurs, air enters the interior of the calciner 6 through the orifice of the emergency pipeline 2, thereby slowing down the temperature drop rate in the calciner 6 and avoiding a sudden drop in the temperature in the calciner 6.

Claims

1. Emergency treatment port for the petroleum coke reaction cycle air intake system in the calcining furnace, characterized by: It comprises an emergency pipeline (2) connected to an air inlet pipeline (1), wherein an emergency cover (3) is provided on the emergency pipeline (2), and when the air inlet pipeline (1) is under negative pressure, the emergency cover (3) is automatically opened by elastic force; One end of the emergency cover (3) is fixedly connected to the pipe mouth of the emergency pipeline (2), the other end of the emergency cover (3) is provided with an inner edge (4), the pipe mouth of the emergency pipeline (2) is provided with a flange (5), and the inner edge (4) cooperates with the flange (5).

2. The emergency treatment port for the petroleum coke reaction cycle air intake system in the calcining furnace according to claim 1, characterized in that: The emergency cover (3) is made of soft rubber material.

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