CN211041795U

CN211041795U - High-yield needle-shaped coke pot type calcining furnace

Info

Publication number: CN211041795U
Application number: CN201921447429.XU
Authority: CN
Inventors: 商宝光; 张传杰; 刘章良; 张明伟
Original assignee: Dongying Haike Ruilin Chemical Co ltd; Shandong Haike Chemical Co ltd; Shandong Yiwei New Material Co ltd
Current assignee: Dongying Haike Ruilin Chemical Co ltd; Shandong Haike Chemical Co ltd; Shandong Yiwei New Material Co ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-07-17
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a high-yield needle-shaped coke pot calciner, which comprises a furnace pot, wherein a feed inlet is arranged above the furnace pot, the upper end of the feed inlet is hermetically connected with a sealing cover, a discharge outlet is arranged below the furnace pot, the outer side of the furnace pot is coated with a furnace wall, the inner side of the furnace wall is provided with a flame path, a cooling water jacket is suspended below the furnace pot, one side of the furnace wall is fixedly provided with a gas pipeline through a bracket, one side of the furnace wall is embedded with a burner, one end of the burner extends to the inside of the flame path, the other end of the burner extends to the outside of the furnace wall, the output end of the gas pipeline is connected with the burner, one side below the furnace wall is provided with a regenerator, the other end of the regenerator is provided with a flue, and the high-yield needle-shaped coke pot calciner has the advantages of reasonable design and simple structure, good sealing performance and high heating temperature.

Description

High-yield needle-shaped coke pot type calcining furnace

Technical Field

The utility model relates to a pot-type calcining furnace technical field, in particular to a high-yield needle-shaped coke pot-type calcining furnace.

Background

The needle coke has the characteristics of low sulfur, low ash content, high conductivity, easy graphitization, low thermal expansion coefficient and the like. Needle coke is used as a high-quality carbon material and is a key raw material for preparing high-power and ultrahigh-power graphite electrodes for electric furnace steelmaking, currently, the needle coke produced by taking catalytic slurry oil or coal tar as a raw material through a delayed coking device is required to be calcined at high temperature and then the true density is improved to more than 2.10g/cm3 to be used as the raw material of the graphite electrodes, and because the traditional pot furnace combustion is a self-combustion type calcining device for combustion and heat supply by utilizing the volatile matters of the materials, the volatile matters of the raw materials entering the furnace generally need to reach about 10 percent. The needle coke volatile matter is only 5-6%, the temperature required by calcination cannot be reached by the combustion of the volatile matter per se, and the product quality cannot meet the application requirement, so that the invention of the high-yield needle coke pot calciner is necessary to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high yield needle-like burnt pot-type calcines burning furnace to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-yield needle-shaped coke pot calciner comprises a kiln pot, wherein a feed inlet is arranged above the kiln pot, the upper end of the feed inlet is hermetically connected with a sealing cover, a discharge outlet is arranged below the kiln pot, a kiln wall is wrapped outside the kiln pot, a flame path is arranged inside the kiln wall, a cooling water jacket is hung below the kiln pot, calcined materials are cooled through the cooling water jacket, a gas pipeline is fixedly installed on one side of the kiln wall through a support, a burner is embedded on one side of the kiln wall, one end of the burner extends into the flame path, the other end of the burner extends to the outside of the kiln wall, the output end of the gas pipeline is connected with the burner, a heat storage chamber is arranged on one side below the kiln wall, a flue is arranged at the other end of the heat storage chamber, and a preheating air path is arranged inside the heat storage chamber, and a volatile gas channel is arranged on one side of the furnace wall.

Preferably, the flame path is arranged in a zigzag manner, and a layer of heat-conducting metal frame is arranged between the flame path and the furnace pot.

Preferably, the outer side of the feeding hole is provided with a threaded hole, the material sealing cover is in threaded connection with a rotating handle, and the rotating handle is in threaded connection with the threaded hole.

Preferably, a convex ring is arranged below the sealing cover, and a ceramic fiber gasket is embedded on the convex ring.

Preferably, the preheated air passage is zigzag-arranged inside the regenerator.

Preferably, the cooling water jacket is mounted on the discharge port.

Compared with the prior art, the beneficial effects of the utility model are as follows: the raw materials are added into the pot from a feed inlet at the top of the pot, then the pot is completely sealed through a sealing cover, the sealing cover is connected with a rotary handle through threads, the rotary handle is further connected with threaded holes on the feed inlet through threads, and a ceramic fiber gasket is arranged, so that the feed inlet can be completely sealed, oxygen is prevented from entering in the calcining process, the materials are oxidized, the materials are gradually heated by flame paths at two sides of the pot in the moving process from top to bottom, the heat generated by the combustion of the fuel in the flame paths is indirectly transferred to the raw materials through the flame path walls and a heat-conducting metal frame, the arranged heat-conducting metal frame has the characteristic of high heat transfer efficiency, the temperature heated in the pot reaches the ideal temperature, when the temperature of the raw materials reaches 350-600 ℃, a large amount of volatile components in the raw materials are released, and are collected through a volatile gas channel and sent to the flame path for combustion, the raw materials are subjected to a series of physical and chemical changes at a high temperature of 1200-1300 ℃, and then enter a cooling water jacket from a discharge port at the bottom of a furnace tank for cooling, waste flue gas after heat exchange is sent into a waste heat boiler through a flue, and steam is produced by using the rest heat, so that the heat is recycled.

Drawings

Fig. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic view of the internal furnace tank structure of the present invention;

FIG. 3 is a schematic view of the internal flame path structure of the present invention;

fig. 4 is a schematic view of the structure of the material sealing cover of the present invention.

In the figure: 1. a furnace pot; 2. a feed inlet; 3. a discharge port; 4. a flame path; 5. a furnace wall; 6. a regenerator; 7. a thermally conductive metal frame; 8. a cooling water jacket; 9. a gas pipeline; 10. a flue; 11. a burner tip; 12. a volatile gas channel; 13. a threaded hole; 14. sealing the material cover; 15. a convex ring; 16. preheating an air channel; 17. a ceramic fiber mat; 18. the handle is rotated.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a high-yield needle coke pot calciner comprises a furnace pot 1, a feed inlet 2 is arranged above the furnace pot 1, a sealing cover 14 is hermetically connected to the upper end of the feed inlet 2, a discharge outlet 3 is arranged below the furnace pot 1, a furnace wall 5 is wrapped outside the furnace pot 1, a flame path 4 is arranged inside the furnace wall 5, a cooling water jacket 8 is hung below the furnace pot 1, a calcined material is cooled through the cooling water jacket 8, a gas pipeline 9 is fixedly mounted on one side of the furnace wall 5 through a support, a burner 11 is embedded on one side of the furnace wall 5, one end of the burner 11 extends into the flame path 4, the other end of the burner 11 extends to the outside of the furnace wall 5, an output end of the gas pipeline 9 is connected with the burner 11, a heat storage chamber 6 is arranged on one side below the furnace wall 5, the other end of the heat storage chamber 6 is provided with a flue 10, a preheating air channel 16 is arranged in the heat storage chamber 6, and one side of the furnace wall 5 is provided with a volatile gas channel 12.

Specifically, flame path 4 is the zigzag arrangement, be provided with one deck heat conduction metal frame 7 between flame path 4 and the retort 1, the outside of feed inlet 2 is provided with screw hole 13, threaded connection has rotatory handle 18 on the closure lid 14, threaded connection between rotatory handle 18 and the screw hole 13, the below of closure lid 14 is provided with protruding circle 15, ceramic fiber gasket 17 has been inlayed on protruding circle 15, preheated air way 16 is the zigzag arrangement in regenerator 6's inside, cooling water jacket 8 installs on discharge gate 3.

The working principle is as follows: during calcination, raw materials are added into the furnace from a feed inlet 2 at the top of the furnace 1, then the furnace 1 is completely sealed through a sealing cover 14, a rotary handle 18 is connected to the arranged sealing cover 14 in a threaded manner, the rotary handle 18 is connected with a threaded hole 13 on the feed inlet 2 in a threaded manner, and a ceramic fiber gasket 17 is arranged, so that the feed inlet 2 can be completely sealed, oxygen is prevented from entering in the calcination process, the materials are oxidized, the materials are gradually heated by flame paths 4 at two sides of the furnace 1 in the moving process from top to bottom, heat generated by combustion of fuel in the flame paths 4 is indirectly transferred to the raw materials through flame path walls and a heat-conducting metal frame 7, the arranged heat-conducting metal frame 7 has the characteristic of high heat transfer efficiency, the heating temperature in the furnace 1 reaches an ideal temperature, when the temperature of the raw materials reaches 350-600 ℃, a large amount of volatile matters in the raw materials are released, the high-yield needle coke pot type calcining furnace is reasonable in design, simple in structure, good in sealing performance and high in heating temperature, and is reasonable in design, simple in structure, and high in heating temperature.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A high-yield needle-shaped coke pot type calcining furnace comprises a furnace pot (1) and is characterized in that: the furnace is characterized in that a feed inlet (2) is arranged above the furnace tank (1), the upper end of the feed inlet (2) is hermetically connected with a sealing cover (14), a discharge outlet (3) is arranged below the furnace tank (1), a furnace wall (5) is coated outside the furnace tank (1), a flame path (4) is arranged inside the furnace wall (5), a cooling water jacket (8) is suspended below the furnace tank (1), a gas pipeline (9) is fixedly arranged on one side of the furnace wall (5) through a support, a burner (11) is embedded on one side of the furnace wall (5), one end of the burner (11) extends into the flame path (4), the other end of the burner (11) extends to the outside of the furnace wall (5), the output end of the gas pipeline (9) is connected with the burner (11), a heat storage chamber (6) is arranged on one side below the furnace wall (5), the other end of the heat storage chamber (6) is provided with a flue (10), a preheating air channel (16) is arranged in the heat storage chamber (6), and one side of the furnace wall (5) is provided with a volatile gas channel (12).

2. The high-yield needle coke can calciner of claim 1, characterized in that: the flame paths (4) are arranged in a zigzag manner, and a layer of heat-conducting metal frame (7) is arranged between the flame paths (4) and the furnace pot (1).

3. The high-yield needle coke can calciner of claim 1, characterized in that: the outer side of the feeding hole (2) is provided with a threaded hole (13), the sealing cover (14) is connected with a rotating handle (18) in a threaded mode, and the rotating handle (18) is connected with the threaded hole (13) in a threaded mode.

4. The high-yield needle coke can calciner of claim 1, characterized in that: a convex ring (15) is arranged below the sealing cover (14), and a ceramic fiber gasket (17) is embedded on the convex ring (15).

5. The high-yield needle coke can calciner of claim 1, characterized in that: the preheating air channel (16) is arranged inside the heat storage chamber (6) in a zigzag shape.

6. The high-yield needle coke can calciner of claim 1, characterized in that: and the cooling water jacket (8) is arranged on the discharge hole (3).