CN213811719U

CN213811719U - Calcining furnace for preparing calcined coke

Info

Publication number: CN213811719U
Application number: CN202022867949.5U
Authority: CN
Inventors: 刘龙江; 刘龙海; 徐国; 张亮; 张庆忠
Original assignee: Hebei Jinqiao Datong New Material Co ltd
Current assignee: Hebei Jinqiao Datong New Material Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-07-27
Anticipated expiration: 2030-12-04

Abstract

The utility model relates to the technical field of calcining furnaces, in particular to a calcining furnace for preparing calcined coke; the outer wall of the charging bucket can be directly heated, so that the heat loss in the heat transfer process is reduced, and the temperature raising time in the charging bucket is shortened; comprises a calciner body and four groups of charging pots; still include the gas intake pipe, multiunit annular gas distribution pipe, air intake pipe and multiunit installation extension board, this internal combustion chamber that is provided with of burning furnace, four groups of material jar are fixed to be set up in the combustion chamber, the top of four groups of material jar is provided with the feeder hopper, the bottom of four groups of material jar is provided with the row's material pipe with the inside intercommunication of material jar, the gas intake pipe sets up in the right-hand member of burning furnace body, multiunit installation extension board top-down equipartition is on four groups of material jar outer walls, be provided with the multiunit point firearm that corresponds the setting with annular gas distribution pipe on the combustion chamber inner wall, annular gas distribution pipe's output is provided with the first air nozzle of multiunit circumference equipartition, the rear end upper portion of burning furnace body is provided with the communicating blast pipe in with the combustion chamber.

Description

Calcining furnace for preparing calcined coke

Technical Field

The utility model relates to a technical field of calcining furnace, especially relate to a preparation of burnt after calcining is with calcining furnace.

Background

As is well known, a calciner for preparing calcined coke is a device for heating and calcining materials; publication (announcement) No. CN201314553 discloses a pot calciner, in particular to a pot calciner capable of effectively detoxifying harmful chromium slag at high temperature. The chromium residue detoxification pot-type calcining furnace comprises a furnace body, an air channel in the furnace body, a charging bucket and a volatile matter air channel arranged in the furnace body; a main ventilating duct is arranged outside the furnace body, air channels are arranged on two sides in the furnace body, and a tank bottom longitudinal main air channel and a branch air channel are arranged at the bottom between two rows of tanks in the middle of the furnace body along the length direction of the furnace body; the air passage and the air dividing passage are communicated with an air port on the charging bucket. Each air channel is communicated with the main ventilation pipeline. The flue gas is combusted through the flame path, and a flue gas purification system is not arranged, so that the investment is saved. Because the flue gas can be fully combusted in the flame path, the generated heat can be transferred to the materials through the wall of the furnace pot, thereby saving energy and reducing the consumption of coal added in the chromium slag balls or the chromium slag balls; however, in use, the distance between the combustion heat generating source and the charging bucket is far, partial heat is dissipated in the heat transfer process, the heating and temperature raising time in the charging bucket is long, and certain use limitation is realized.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a can reduce thermal scattering and disappearing among the heat transfer process to material jar outer wall direct heating, shorten the material jar interior calcination burning furnace for preparation of burnt of back of raising the temperature time.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: comprises a calciner body and four groups of charging pots; the gas inlet pipe is arranged at the right end of the calcining furnace body, the plurality of groups of installation extension plates are uniformly distributed on the outer walls of the four groups of material tanks from top to bottom, the plurality of groups of annular gas distribution pipes are respectively arranged on the installation extension plates, a plurality of groups of igniters arranged corresponding to the annular gas distribution pipes are arranged on the inner wall of the combustion cavity, the output end of the gas inlet pipe is communicated with the input ends of the plurality of groups of annular gas distribution pipes, a plurality of groups of first gas nozzles uniformly distributed in the circumferential direction are arranged at the output end of the annular gas distribution pipes, and the output ends of the plurality of groups of first gas nozzles face the outer wall of the material tank, the output end of the air inlet pipe extends into the combustion chamber from the top end of the calciner body, and the upper part of the rear end of the calciner body is provided with an exhaust pipe communicated with the combustion chamber.

Preferably, a cooling cavity is arranged at the bottom of the calciner body, a cooling water inlet pipe communicated with the cooling cavity is arranged at the bottom of the left end of the calciner body, a cooling water return pipe communicated with the cooling cavity is arranged at the bottom of the right end of the calciner body, and the bottom of the charging bucket is located in the cooling cavity.

Preferably, the left part and the right part top-down in the material jar are provided with the striker plate of multiunit equipartition, and the one end that multiunit striker plate is close to the material jar center is all to material jar central line department slope, and the multiunit striker plate on material jar left end inner wall and the right-hand member inner wall sets up in the past.

Preferably, the device further comprises four groups of discharging devices, and the four groups of discharging devices are respectively arranged at the output ends of the four groups of discharging pipes.

Preferably, the gas inlet pipe and the air inlet pipe are both provided with flow regulating valves.

Preferably, the output end of the air inlet pipe extends into the bottom of the combustion cavity, and the output end of the air inlet pipe is provided with a plurality of groups of second air nozzles which are circumferentially and uniformly distributed.

(III) advantageous effects

Compared with the prior art, the utility model provides a burnt preparation of back of calcining is with forging burning furnace possesses following beneficial effect: this forge burning furnace for burnt preparation, put into the material jar through the feeder hopper through the material, with the gas through the gas intake pipe drum go into annular gas distribution intraductal and through first air nozzle blowout back, with the air through the air intake pipe drum to the combustion chamber in, light first air nozzle spun gas through some firearm, make combustion flame directly to material jar outer wall heating, and make the combustion intracavity temperature rise, can play certain heat conduction effect through the setting of installation extension board, make and heat up rapidly in the material jar, can be to material jar outer wall direct heating, reduce thermal scattering and disappearing in the heat transfer process, it is time to shorten the interior temperature-raising of material jar.

Drawings

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

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic cross-sectional view taken along line a-a of fig. 2 according to the present invention;

fig. 4 is a schematic cross-sectional view taken along line B-B of fig. 2 according to the present invention;

in the drawings, the reference numbers: 1. a calciner body; 2. a charging bucket; 3. an igniter; 4. a gas inlet pipe; 5. an annular gas distribution pipe; 6. an air inlet pipe; 7. installing an extension plate; 8. a feed hopper; 9. a discharge pipe; 10. a first air nozzle; 11. an exhaust pipe; 12. a cooling chamber; 13. a cooling water inlet pipe; 14. a cooling water return pipe; 15. a striker plate; 16. a discharger; 17. a flow regulating valve; 18. a second air nozzle.

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, the calcinator for preparing calcined coke of the present invention comprises a calcinator body 1 and four groups of charging buckets 2; the calcining furnace also comprises a gas inlet pipe 4, a plurality of groups of annular gas distribution pipes 5, an air inlet pipe 6 and a plurality of groups of installation extension plates 7, a combustion cavity is arranged in the calcining furnace body 1, four groups of material tanks 2 are fixedly arranged in the combustion cavity, the tops of the four groups of material tanks 2 are provided with feed hoppers 8, the bottoms of the four groups of material tanks 2 are provided with discharge pipes 9 communicated with the interiors of the material tanks 2, the gas inlet pipe 4 is arranged at the right end of the calcining furnace body 1, the plurality of groups of installation extension plates 7 are uniformly distributed on the outer walls of the four groups of material tanks 2 from top to bottom, the plurality of groups of annular gas distribution pipes 5 are respectively arranged on the installation extension plates 7, the inner wall of the combustion cavity is provided with a plurality of groups of igniters 3 arranged corresponding to the annular gas distribution pipes 5, the output end of the gas inlet pipe 4 is communicated with the input ends of the plurality of annular gas distribution pipes 5, the output end of the annular gas distribution pipes 5 is provided with a plurality of first gas nozzles 10 uniformly distributed in the circumferential direction, the output ends of the first gas nozzles 10 face the outer walls of the material tanks 2, the output end of the air inlet pipe 6 extends into the combustion chamber from the top end of the calciner body 1, and the upper part of the rear end of the calciner body 1 is provided with an exhaust pipe 11 communicated with the combustion chamber; through putting into the material through feeder hopper 8 in the material jar 2, with the gas through 4 bloies into annular gas distribution pipe 5 of gas intake pipe and through first air nozzle 10 blowout backs, with the air through 6 bloies into to the combustion chamber in the air intake pipe, light first air nozzle 10 spun gas through some firearm 3, make combustion flame directly to 2 outer wall heats of material jar, and make the combustion intracavity temperature rise, can play certain heat conduction effect through the setting of installation extension board 7, make and heat up rapidly in the material jar 2, can be to 2 outer wall direct heating of material jar, reduce thermal scattering and disappearing in the heat transfer process, it is time to shorten the interior temperature-raising of material jar 2.

The utility model discloses a calcined coke preparation calciner, the bottom of the calciner body 1 is provided with a cooling cavity 12, the bottom of the left end of the calciner body 1 is provided with a cooling water inlet pipe 13 communicated with the cooling cavity 12, the bottom of the right end of the calciner body 1 is provided with a cooling water return pipe 14 communicated with the cooling cavity 12, and the bottom of the material tank 2 is positioned in the cooling cavity 12; external circulating cooling water is injected into the cooling cavity 12 through the cooling water inlet pipe 13 and is discharged through the cooling water return pipe 14, so that the material falling to the bottom of the charging bucket 2 and heated and coked can be cooled, and the temperature of the material discharged from the discharge pipe 9 is reduced; a plurality of groups of uniformly distributed baffle plates 15 are arranged at the left part and the right part in the charging bucket 2 from top to bottom, one ends of the plurality of groups of baffle plates 15 close to the center of the charging bucket 2 are inclined towards the center line of the charging bucket 2, and the plurality of groups of baffle plates 15 on the inner walls of the left end and the right end of the charging bucket 2 are arranged in a staggered manner; through the arrangement of the material baffle plate 15, the traveling path of the material in the material tank 2 is prolonged, so that the material has enough time to be heated and coked; the four-group discharging device 16 is also included, and the four-group discharging device 16 is respectively arranged at the output ends of the four-group discharging pipes 9; by starting the discharger 16, the amount of the material discharged from the discharge pipe 9 can be controlled, so that the material at the bottom in the charging bucket 2 is prevented from being discharged from the discharge pipe 9 too fast, the material has sufficient time to be cooled by cold water in the cooling cavity 12, and the situation that the temperature of the material discharged from the discharge pipe 9 is too high is avoided; the gas inlet pipe 4 and the air inlet pipe 6 are both provided with a flow regulating valve 17; the air inflow of the fuel gas and the air is controlled by controlling the flow regulating valve 17, so that the combustion heat production quantity of the fuel gas is controlled, and the controllable regulation of the temperature in the charging bucket 2 is realized; the output end of the air inlet pipe 6 extends into the bottom of the combustion cavity, and the output end of the air inlet pipe 6 is provided with a plurality of groups of second air nozzles 18 which are uniformly distributed in the circumferential direction; stretch into to burning chamber lower part from burning chamber upper portion through air intake pipe 6, can make the air preheat by the hot-air on burning chamber upper portion when flowing in air intake pipe 6, thereby make 6 output exhaust air temperature of air intake pipe and burning intracavity temperature be close, avoid the cold air to get into the condition emergence that produces the influence to burning intracavity temperature, setting through multiunit second air nozzle 18, can make entering to the burning intracavity of air ability homodisperse, thereby make the gas can fully contact with the oxygen in the air and mix, make the gas can fully burn, it is more energy-conserving.

When the material heating device is used, materials are placed into the material tank 2 through the feed hopper 8, fuel gas is blown into the annular gas distribution pipe 5 through the fuel gas inlet pipe 4 and is sprayed out through the first gas nozzle 10, air is blown into a combustion cavity through the air inlet pipe 6, the fuel gas sprayed out through the first gas nozzle 10 is ignited through the igniter 3, combustion flame directly heats the outer wall of the material tank 2, the temperature in the combustion cavity is raised, a certain heat conduction effect can be achieved through the arrangement of the installation extension plate 7, the temperature in the material tank 2 is rapidly raised, the outer wall of the material tank 2 can be directly heated, heat loss in the heat transfer process is reduced, and the temperature raising time in the material tank 2 is shortened; external circulating cooling water is injected into the cooling cavity 12 through the cooling water inlet pipe 13 and is discharged through the cooling water return pipe 14, so that the material falling to the bottom of the charging bucket 2 and heated and coked can be cooled, and the temperature of the material discharged from the discharge pipe 9 is reduced; through the arrangement of the material baffle plate 15, the traveling path of the material in the material tank 2 is prolonged, so that the material has enough time to be heated and coked; by starting the discharger 16, the amount of the material discharged from the discharge pipe 9 can be controlled, so that the material at the bottom in the charging bucket 2 is prevented from being discharged from the discharge pipe 9 too fast, the material has sufficient time to be cooled by cold water in the cooling cavity 12, and the situation that the temperature of the material discharged from the discharge pipe 9 is too high is avoided; the air inflow of the fuel gas and the air is controlled by controlling the flow regulating valve 17, so that the combustion heat production quantity of the fuel gas is controlled, and the controllable regulation of the temperature in the charging bucket 2 is realized; stretch into to burning chamber lower part from burning chamber upper portion through air intake pipe 6, can make the air preheat by the hot-air on burning chamber upper portion when flowing in air intake pipe 6, thereby make 6 output exhaust air temperature of air intake pipe and burning intracavity temperature be close, avoid the cold air to get into the condition emergence that produces the influence to burning intracavity temperature, setting through multiunit second air nozzle 18, can make entering to the burning intracavity of air ability homodisperse, thereby make the gas can fully contact with the oxygen in the air and mix, make the gas can fully burn, it is more energy-conserving.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A calcining furnace for preparing calcined coke comprises a calcining furnace body (1) and four groups of charging pots (2); the device is characterized by further comprising a gas inlet pipe (4), a plurality of groups of annular gas distribution pipes (5), an air inlet pipe (6) and a plurality of groups of installation extension plates (7), wherein a combustion cavity is arranged in the calcining furnace body (1), four groups of material tanks (2) are fixedly arranged in the combustion cavity, the top parts of the four groups of material tanks (2) are provided with feed hoppers (8), the bottom parts of the four groups of material tanks (2) are provided with discharge pipes (9) communicated with the inside of the material tanks (2), the gas inlet pipe (4) is arranged at the right end of the calcining furnace body (1), the plurality of groups of installation extension plates (7) are uniformly distributed on the outer walls of the four groups of material tanks (2) from top to bottom, the plurality of groups of annular gas distribution pipes (5) are respectively arranged on the installation extension plates (7), and the inner wall of the combustion cavity is provided with a plurality of igniters (3) correspondingly arranged with the annular gas distribution pipes (5), the output end of the gas inlet pipe (4) is communicated with the input ends of the multiple groups of annular gas distribution pipes (5), the output ends of the annular gas distribution pipes (5) are provided with multiple groups of first air nozzles (10) which are circumferentially and uniformly distributed, the output ends of the multiple groups of first air nozzles (10) face the outer wall of the material tank (2), the output end of the air inlet pipe (6) extends into the combustion cavity from the top end of the calcining furnace body (1), and an exhaust pipe (11) communicated with the combustion cavity is arranged at the upper part of the rear end of the calcining furnace body (1).

2. Calcining furnace according to claim 1, characterized in that a cooling cavity (12) is arranged at the bottom of the calcining furnace body (1), a cooling water inlet pipe (13) communicated with the cooling cavity (12) is arranged at the bottom of the left end of the calcining furnace body (1), a cooling water return pipe (14) communicated with the cooling cavity (12) is arranged at the bottom of the right end of the calcining furnace body (1), and the bottom of the charging bucket (2) is located in the cooling cavity (12).

3. The calcining furnace for preparing calcined coke according to claim 2, characterized in that a plurality of groups of uniformly distributed baffle plates (15) are arranged at the left part and the right part in the charging bucket (2) from top to bottom, one ends of the plurality of groups of baffle plates (15) close to the center of the charging bucket (2) are inclined towards the center line of the charging bucket (2), and the plurality of groups of baffle plates (15) on the inner walls of the left end and the right end of the charging bucket (2) are arranged in a staggered manner.

4. Calcining furnace for the preparation of calcined coke according to claim 3, characterized in that it further comprises four sets of dischargers (16), said four sets of dischargers (16) being arranged at the output of four sets of discharge pipes (9), respectively.

5. Calcining furnace for the preparation of calcined coke according to claim 4, characterized in that the gas inlet pipe (4) and the air inlet pipe (6) are provided with a flow regulating valve (17).

6. Calcining furnace for the preparation of calcined coke according to claim 5, characterized in that the outlet end of the air inlet pipe (6) extends into the bottom of the combustion chamber, and the outlet end of the air inlet pipe (6) is provided with a plurality of groups of circumferentially uniformly distributed second air nozzles (18).