CN217403178U - Temperature runaway control device for petroleum catalyst calcination by segmented isolation displacement method - Google Patents

Abstract

The utility model discloses a temperature device flies is kept apart to segmentation for calcination oil catalyst replacement method control, it has solved current oil catalyst regeneration link and has easily fired catalyst calcination link and appear the interior temperature of flying to lead to the difficult problem that the temperature is difficult to control of stove, its characterized in that: the kiln (1) is divided into a plurality of sections by the rotatable flashboards (2) according to the material roasting process, and combustible gas replacement holes are arranged on the kiln body. The device has the advantages of reasonable structure, simple manufacture, energy conservation, investment reduction, land conservation, environmental protection and the like, can quickly control the temperature runaway, has no spread in the temperature runaway region, is simple to operate, and is economic and efficient compared with a nitrogen isolation method; the method has the advantages of no additional operation cost, rapid temperature reduction and high temperature control precision compared with a flammable gas pumping and exhausting method, and has good economic and social benefits.

Description

Temperature runaway control device for petroleum catalyst calcination by segmented isolation displacement method

Technical Field

The utility model belongs to thermal equipment especially relates to a segmentation isolation replacement method control temperature runaway device for calcination oil catalyst.

Background

The catalyst roasting kiln and the process are an integral process framework formed by elements of a proper temperature system, reasonable material thickness, proper material running speed, a scientific and professional kiln structure and the like.

The regeneration of petroleum catalyst and the calcination of inflammable catalyst are characterized in that the materials contain more organic matters, and the organic matters volatilize along with the material at a certain temperature, and then the material burns after reaching a certain concentration and temperature, so that the temperature of the area rises suddenly and temperature runaway occurs. During temperature runaway, the temperature of a material layer in a furnace can be out of control, so that the catalyst is scrapped due to the fact that the catalyst is sintered and loses activity, and great economic loss is caused to enterprises; the prevention and control of temperature runaway in the catalyst calcination process are particularly important.

The temperature in the kiln is generally partitioned according to the requirements of production processes, a fire wall and a flashboard are used for partitioning in a common method, or only the flashboard is used for partitioning, the fire wall is generally fixed below materials in a conventional design, the flashboard is generally movable above the materials, and the height of the flashboard is required to be adjusted at any time according to the requirements of the materials or the roasting process. Currently, the common flashboards are mainly classified into two types according to materials: i.e. refractory materials and metals. The high-temperature kiln has the advantages that the use temperature is high, but faults are easy to occur in actual use, the high-temperature kiln has the defects of easiness in breaking and breaking, large weight, inconvenience in adjustment, difficulty in maintenance and replacement and the like, and great economic loss is caused for enterprises sometimes.

The metal type flashboard uses at its applicable temperature within range the utility model discloses the technique can not warp, and for refractory material type flashboard, its convenient to use, flashboard keep apart effectually, can not appear easy-to-break easy broken, weight is great, inconvenient regulation, maintenance change defects such as difficulty.

Disclosure of Invention

An object of the utility model is to provide a rational in infrastructure, simple manufacture, energy can be saved, reduce investment, save area, the oil catalyst regeneration kiln segmentation accuse temperature isolation replacement method control of environmental protection flies warm process units.

The technical scheme of the utility model is that: the furnace comprises a furnace body, a mesh belt transmission system, a waste discharge system (including a smoke discharge system), a combustion system and the like, wherein the furnace is divided into a plurality of sections through flashboards according to a material roasting process, and combustible gas replacement holes are formed in the furnace body. The gate plate is made by filling a main framework and a stainless steel partition plate into a burning spot welding manner. The middle part of the inner hole of the upper long-side steel pipe of the main framework is blocked by high-temperature cotton, holes are drilled at the two ends of the upper long-side steel pipe and are in butt joint with the inner holes of the left-side steel pipe and the right-side steel pipe, the inner holes of the left-side steel pipe and the right-side steel pipe are communicated with the inner hole of the lower long-side steel pipe, and the leakage-free steel pipe main framework is formed by welding. The upper long-edge steel pipe of the main framework is close to the lower edge of the kiln top, two ends of the upper long-edge steel pipe penetrate out of the tops of kiln walls on two sides of the kiln body, the upper long-edge steel pipe is installed in a round hole formed in a metal frame of the kiln body through a bearing, and limiting blocking pieces are arranged on the upper long-edge steel pipes on two sides of the metal frame to prevent the flashboard from moving left and right. The pipe orifice at one end of the upper long-side steel pipe is communicated with a waste discharge pipeline by a movable joint, and the distance between the waste discharge orifices at the top of the furnace is 1.8-2.2 m. The other side mouth of pipe is for opening the mouth to set up twist grip and angle locator on this side body, through the key strip fixed mounting on last long limit tubular steel. The flammable gas replacement holes comprise a furnace top replacement hole and furnace wall replacement holes on two sides, and valves are arranged at outlets of all the flammable gas replacement holes.

The beneficial effects of the utility model reside in that: the temperature runaway is controlled quickly, the temperature runaway area is not spread, the operation is simple, and the method is economic and efficient compared with a nitrogen isolation method; the method does not increase extra operation cost, and has rapid temperature reduction and high temperature control precision compared with a flammable gas pumping and exhausting method. The old technology appears when flying to the temperature and wants to drop to ideal temperature longer often need 3 ~ 6 hours, and the temperature control precision is also time high time low + -can reach about 30 ℃, the utility model discloses the displacement method is kept apart to segmentation temperature control flying to the temperature can be dropped to ideal temperature about 20 minutes rapidly, and the temperature control precision can reach about 3 ~ 8 ℃.

The present invention will be further explained with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of the flammable gas replacement of the present invention;

FIG. 2 is an enlarged schematic view of the furnace top replacement hole of the present invention;

FIG. 3 is an enlarged schematic view of the furnace wall replacement hole of the present invention;

FIG. 4 is a schematic cross-sectional structure of the present invention;

fig. 5 is the utility model discloses the local main view structure schematic diagram of installation flashboard.

In the figure: the furnace is characterized in that the furnace is 1, the furnace is 2, the furnace top replacement hole is 3, the partition plate is 4, the upper long-edge steel pipe is 5, the combustible gas is 6, the waste discharge pipeline is 7, the waste discharge fan is 8, the mesh belt is 9, the furnace wall replacement hole is 10, the rotating handle is 11, the right steel pipe is 12, the lower long-edge steel pipe is 13, the opening is 14, the movable joint is 15, the main framework is 16, the angle positioner is 17, the left steel pipe is 18, the high-temperature cotton is 19, the key bar is 20, and the limiting blocking piece is 21.

Detailed Description

As shown in figure 1, the device for controlling the temperature runaway by the segmented isolation displacement method for roasting the petroleum catalyst comprises a furnace body, a mesh belt transmission system, a smoke exhaust system (including a waste discharge system), a combustion system and the like, wherein a kiln 1 is divided into a plurality of segments by flashboards 2 according to a material roasting process, combustible gas displacement holes and waste discharge pipelines are arranged on the furnace body, and waste discharge pipeline openings are arranged in a group at intervals of 1.8-2.2 meters. As shown in fig. 4 and 5, the gate plate 2 is made by filling a main framework 16 and a stainless steel partition plate 4 by spot welding, the middle part of an inner hole of an upper long-side steel pipe 5 of the main framework 16 is blocked by high-temperature cotton 19, holes are drilled at two ends of the upper long-side steel pipe 5 and are butted with inner holes of a left steel pipe 18 and a right steel pipe 12, the inner holes of the left steel pipe 18 and the right steel pipe 12 are communicated with the inner hole of a lower long-side steel pipe 13, and the leakage-free steel pipe main framework 16 is formed by welding. The upper long-side steel pipe 5 of the main framework 16 is close to the lower edge of the kiln top, the two ends of the upper long-side steel pipe 5 penetrate out of the tops of kiln walls on the two sides of the kiln body, the upper long-side steel pipe 5 is installed in a round hole formed in a metal frame of the kiln body, limiting blocking pieces 21 are arranged on the upper long-side steel pipe 5 on the two sides of the metal frame to prevent the flashboard from moving left and right, a pipe orifice at one end of the upper long-side steel pipe 5 is communicated with a waste discharge pipeline 7 through a movable joint 15, a pipe orifice at the other side is an open orifice 14, a rotating handle 11 and an angle positioner 17 are arranged on a pipe body at the side, and the upper long-side steel pipe 5 is fixedly installed on a key strip 20. As shown in fig. 2, 3, 4 and 5, a valve is provided at an outlet of the flammable gas replacement hole, and the flammable gas replacement hole may be provided with a furnace top replacement hole 3 at a furnace top or furnace wall replacement holes 10 at both sides of a furnace wall according to different types of kilns. When the utility model is implemented, the kiln is divided into a plurality of sections according to the flashboard 2 for the roasting process by adopting the sectional temperature control isolation replacement method, and the furnace top or the furnace wall both sides between specific temperature intervals are provided with the flammable gas replacement holes which are valve type, so that the switch is very convenient. When the kiln has temperature runaway signs or temperature runaway is generated, the flammable gas replacement holes in corresponding areas are appropriately opened, and fresh air outside the kiln is sucked from the replacement holes under the action of negative pressure of waste discharge in the kiln to realize local temperature reduction. Meanwhile, the flammable gas in the kiln is desalted or replaced and discharged out of the kiln under the pumping action of the waste discharge air pipe 7 and the waste discharge fan 8, and the temperature runaway can be quickly inhibited. In addition, the kiln is divided into a plurality of functional sections by using the flashboards during design, the flashboards 2 can isolate a temperature-runaway area in a smaller interval during temperature runaway, so that the temperature-runaway area is restrained from spreading to a distance, the restrained temperature-runaway area can realize rapid temperature reduction and control functions under the action of replacing temperature reduction holes, and the temperature control precision of the kiln is far superior to that of other control methods.

Claims (3)

1. The utility model provides a segmentation isolation replacement method control of a section device that flies warm for calcination oil catalyst, it includes furnace body, guipure transmission system, waste discharge/exhaust system and combustion system, its characterized in that: the kiln (1) is divided into a plurality of sections by the flashboards (2) according to the material roasting process, and combustible gas replacement holes are arranged on the kiln body.

2. The sectionalized separation and replacement method temperature-runaway controlling device for roasting petroleum catalyst as claimed in claim 1, wherein: the flashboard (2) is made by filling a main framework (16) and a stainless steel partition board (4) with a sintered spot welding way, the middle part of an inner hole of an upper long-edge steel pipe (5) of the main framework (16) is blocked by high-temperature cotton (19), holes are drilled at two ends of the upper long-edge steel pipe (5) and are butted with inner holes of a left steel pipe (18) and a right steel pipe (12), the inner holes of the left steel pipe (18) and the right steel pipe (12) are communicated with an inner hole of a lower long-edge steel pipe (13), a leakage-free steel pipe main framework (16) is formed by welding, the upper long-edge steel pipe (5) of the main framework (16) is close to the lower edge of a kiln top, two ends of the upper long-edge steel pipe penetrate through the tops of kiln walls at two sides of the kiln body and are arranged in a round hole arranged on a metal frame of the kiln body, limiting blocking pieces (21) are arranged on the upper long-edge steel pipe (5) at two sides of the metal frame to prevent the flashboard from moving left and right, one end of the upper long-edge steel pipe (5) is communicated with a waste discharge pipeline (7) by a movable joint (15), the other side pipe orifice is an open opening (14), a rotating handle (11) and an angle positioner (17) are arranged on the side pipe body, and the side pipe orifice is clamped and installed on the upper long-side steel pipe (5) through a key strip (20).

3. The sectionalized separation displacement method temperature-runaway controlling device for roasting petroleum catalyst as claimed in claim 1 or 2, wherein: the flammable gas replacement holes comprise a furnace top replacement hole (3) and furnace wall replacement holes (10) on two sides, and valves are arranged at outlets of all the flammable gas replacement holes.

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