CN218295679U

CN218295679U - Carbon calciner high-temperature calcined coke waste heat recovery device and system

Info

Publication number: CN218295679U
Application number: CN202221958541.1U
Authority: CN
Inventors: 刘钦; 郭家坤; 赵运庆; 王欢; 孙龙
Original assignee: Jinan Tairuicheng Thermal Power Engineering Co ltd
Current assignee: Jinan Tairuicheng Thermal Power Engineering Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-01-13
Anticipated expiration: 2032-07-27

Abstract

The utility model discloses a carbon calciner high-temperature calcined coke waste heat recovery device and a system, which are of a vertical structure and are sequentially provided with a feeding section, an evaporation section and a deep cooling section from top to bottom, wherein the evaporation section comprises an annular water supply pipe, a plurality of evaporation pipes and a steam collecting pipe, and the plurality of evaporation pipes are vertically arranged on the water supply pipe in parallel to form a water-cooled wall and enclose a cooling cavity; the steam collecting pipe is positioned above the evaporating pipes and is communicated with each evaporating pipe; the deep cooling section comprises a deep cooling sleeve, the deep cooling sleeve is enclosed into a deep cooling cavity, and an inlet and an outlet are arranged on the deep cooling sleeve. The feed pipe is located the bottom, and high temperature is forged the back burnt and is added from the top, and the cooling water is from up rising gradually, and high temperature is forged the back burnt top-down and is cooled down gradually, utilizes hottest high temperature to forge back burnt steam generation, can effectively improve the production volume and the steam temperature of steam.

Description

Carbon calciner high-temperature calcined coke waste heat recovery device and system

Technical Field

The utility model belongs to the technical field of the burning furnace waste heat utilization is forged to charcoal, concretely relates to burning furnace high temperature is forged burnt waste heat recovery device and system are forged to carbon element.

Background

The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.

The production process of the carbon has a high-temperature calcination link, and the temperature of the coke leaving the calcination process after the high-temperature calcination is generally about 800-1000 ℃, and the coke contains a large amount of heat. At present, the cooling mode of the high-temperature calcined coke generally adopts circulating water to cool the high-temperature calcined coke, then the heated circulating water is conveyed to an air cooling tower for air cooling, and the cooled circulating water circularly cools the high-temperature calcined coke.

The cooling method mainly has the following two problems: (1) The heat carried by the high-temperature calcined coke is not recycled and is completely wasted; (2) The cooling process of the high-temperature calcined coke needs to evaporate a large amount of circulating cooling water, so that a large amount of cooling water is consumed.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims at providing a burnt waste heat recovery device and system after carbon calciner high temperature is forged.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

in a first aspect, the utility model provides a carbon calciner high-temperature calcined coke waste heat recovery device which is of a vertical structure and comprises a feeding section, an evaporation section and a deep cooling section from top to bottom in sequence, wherein,

the evaporation section comprises an annular water supply pipe, a plurality of evaporation pipes and a steam collecting pipe, and the evaporation pipes are vertically arranged on the water supply pipe in parallel to form a water-cooled wall and enclose a cooling cavity; the steam collecting pipe is positioned above the evaporation pipes and is communicated with each evaporation pipe;

the deep cooling section comprises a deep cooling sleeve, the deep cooling sleeve is enclosed into a deep cooling cavity, and an inlet and an outlet are formed in the deep cooling sleeve.

In a second aspect, the utility model provides a carbon calciner high-temperature calcined coke waste heat recovery system, which comprises an evaporative cooling device, a deaerating device, a steam-water separation device and an overheating device;

the deep cooling jacket inlet of the evaporative cooling device is connected with a soft water inlet pipeline, the deep cooling jacket outlet is connected with a water supply pipe of the evaporation section through a deoxidizing device, the outlet of a gas collecting pipe is connected with the inlet of a steam-water separation device, and the outlet of the steam-water separation device is connected with an overheating device.

The utility model discloses an above-mentioned beneficial effect that one or more embodiments obtained as follows:

the high-temperature calcined coke is added from the top, the high temperature heats the cooling water in the evaporating pipe, the cooling water forms steam after being heated, the steam can be used for other purposes (such as being sent to a steam pipe network or being used for a steam turbine to drag a water pump, a fan and the like), the consumption of the cooling water is avoided, the power consumption of the whole plant is reduced, the production cost of an enterprise is reduced, the market competitiveness of the product is increased, and the enterprise benefit is improved.

The steam collecting pipe is convenient for collect the generated steam and facilitate the steam to be discharged outside.

The feed pipe is located the bottom, and high temperature calcined coke adds from the top, and the cooling water is from bottom to top heated gradually, and high temperature calcined coke top-down cools down gradually, utilizes hottest high temperature calcined coke to produce steam, can effectively improve the yield and the steam temperature of steam.

Set up the cryogenic section below the evaporation zone for carry out cryogenic treatment to high temperature calcined coke, in order to improve the waste heat utilization ratio to high temperature calcined coke, can preheat the cooling water simultaneously, in order to improve the production of steam.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

FIG. 1 is a schematic front view of an evaporative cooling apparatus according to one or more embodiments of the present invention;

FIG. 2 is a side view schematic illustration of an evaporative cooling apparatus in accordance with one or more embodiments of the present invention;

fig. 3 is a schematic structural diagram of a calcined coke waste heat utilization system according to one or more embodiments of the present invention.

In the figure, 1, a feeding section; 2-an exhaust pipe; 3-an evaporation tube; 4-a water supply pipe; 5-deep cooling; 6-deep cooling cavity; 7-a superheating device; 8-a steam-water separation device; 9-an evaporative cooling device; 10-oxygen removal device.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

the deep cooling section comprises a deep cooling sleeve, the deep cooling sleeve is enclosed into a deep cooling cavity, and an inlet and an outlet are arranged on the deep cooling sleeve.

In some embodiments, two adjacent evaporation tubes are connected by a plate body. So as to have good reinforcing effect.

Preferably, the plate body is a hollow plate body. The evaporation pipes are communicated through the hollow plate body, so that the liquid level in each evaporation pipe is ensured to be consistent, and the water supply controllability is improved.

In some embodiments, some or all of the evaporator tubes are provided with fins disposed along the generatrices of the evaporator tubes.

The arrangement of the fins can effectively improve the heat exchange area and improve the heat exchange efficiency.

In some embodiments, the outlet of the cryogenic cavity is a reduced diameter structure. The deep cooling cavity is of a necking structure, so that the discharging speed of the cooled calcined coke is effectively controlled, and the residence time of the calcined coke in the evaporative cooling device is prolonged, and the waste heat recovery efficiency is guaranteed.

Preferably, the deep cooling cavity is of a funnel-shaped structure.

In some embodiments, a shell is disposed outside the waterwall. The arrangement of the shell is convenient for supporting and protecting the water-cooled wall.

In some embodiments, the material of the feeding section is a high temperature resistant material.

Preferably, the feeding section is of an expanding structure, so that feeding is facilitated.

In a second aspect, the utility model provides a system for recovering the waste heat of high-temperature calcined coke of a carbon calciner, which comprises an evaporative cooling device, a deaerating device, a steam-water separation device and a superheating device;

The present invention will be further described with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1 and 2, a device for recovering waste heat of high-temperature calcined coke in a carbon calciner is of a vertical structure, and comprises a feeding section 1, an evaporation section and a deep cooling section from top to bottom in sequence, wherein the evaporation section comprises an annular water supply pipe 4, a plurality of evaporation pipes 3 and a steam collecting pipe, and the plurality of evaporation pipes 3 are vertically arranged on the water supply pipe 4 in parallel to form a water-cooled wall to enclose a cooling cavity; the steam collecting pipe is positioned above the evaporating pipes 3 and is communicated with each evaporating pipe 3; the deep cooling section comprises a deep cooling sleeve 5, the deep cooling sleeve 5 is enclosed into a deep cooling cavity 6, and an inlet and an outlet are arranged on the deep cooling sleeve 5.

Two adjacent evaporating pipes 3 are connected through a plate body which is a hollow plate body, and the evaporating pipes 3 are communicated with each other by the hollow plate body. The evaporation tubes 3 are communicated through hollow plate bodies, so that the liquid level in each evaporation tube 3 is ensured to be consistent, and the controllability of water supply is improved. The plate body has a certain thickness for reinforcing the evaporating tubes 3.

Fins are arranged on part of the evaporation tubes 3 and are arranged along the generatrix of the evaporation tubes 3, namely, the plate bodies of the fins 7 are arranged in parallel with the generatrix of the evaporation tubes 3. The arrangement of the fins can effectively improve the heat exchange area and improve the heat exchange efficiency.

The deep cooling cavity 6 is integrally of a funnel-shaped structure, and the cross sectional areas of the small-diameter end and the large-diameter end are prepared to be 1. A shell is arranged on the outer side of the water-cooled wall and is arranged close to the water-cooled wall. The material of feeding section is high temperature resistant material, sets up the feeding section into the hole enlargement structure, the feeding of being convenient for.

Example 2

As shown in fig. 3, the system for recovering the waste heat of the high-temperature calcined coke of the carbon calciner comprises the evaporation cooling device 9, the deaerating device 10, the steam-water separation device 8 and the superheating device 7;

the copious cooling cover 5 of evaporative cooling device 9 imports and is connected with soft water inlet pipeline, and copious cooling cover 5 exports the feed pipe that passes through deaerator 10 and evaporation zone and is connected, the export of collecting pipe with 8 access connections of steam-water separation device, 8 exports of steam-water separation device with superheater 7 connects.

The high-temperature calcined coke enters from the inlet of the evaporative cooling device 9, and in the evaporative cooling device 9, the high-temperature calcined coke exchanges heat with cooling water in the evaporation section. The calcined coke enters the lower deep cooling section after coming out of the evaporation section, then exchanges heat with a cooling medium in the deep cooling sleeve 5 of the deep cooling section to absorb the heat of the medium-low temperature calcined coke, soft water is heated and then is sent to the oxygen removal device 10 to remove oxygen, and the medium after oxygen removal enters the upper evaporation section again. Soft water enters the upper evaporation section and exchanges heat with high-temperature calcined coke, a medium is evaporated into a steam-water mixture, the steam-water mixture is introduced to a steam-water separation element through a pipeline, the steam-water mixture is separated by a steam-water separation device 8 and then sent to a superheating device 7, and the steam-water mixture is heated by the superheating device 7 and then sent to a steam pipe network or used for a steam turbine to drive a water pump, a fan and the like.

Soft water after being deoxidized by the deoxidizing device 10 can also exchange heat with a steam-water mixture in the steam-water separation device, the soft water enters the evaporative cooling device 9 after being further heated, the high-temperature calcined coke is cooled, and steam in the steam-water mixture is further condensed.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a burnt waste heat recovery device after carbon calciner high temperature is forged which characterized in that: is of a vertical structure and is sequentially provided with a feeding section, an evaporation section and a deep cooling section from top to bottom, wherein,

the evaporation section comprises an annular water supply pipe, a plurality of evaporation pipes and a steam collecting pipe, and the evaporation pipes are vertically arranged on the water supply pipe in parallel to form a water-cooled wall and enclose a cooling cavity; the steam collecting pipe is positioned above the evaporating pipes and is communicated with each evaporating pipe;

2. The carbon calciner high-temperature calcined coke waste heat recovery device according to claim 1, characterized in that: two adjacent evaporating pipes are connected through a plate body.

3. The carbon calciner high-temperature calcined coke waste heat recovery device according to claim 2, characterized in that: the plate body is a hollow plate body.

4. The carbon calciner high-temperature calcined coke waste heat recovery device according to claim 1, characterized in that: fins are arranged on part or all of the evaporation tubes and are arranged along the generatrices of the evaporation tubes.

5. The carbon calciner high-temperature calcined coke waste heat recovery device according to claim 1, characterized in that: the outlet of the deep cooling cavity is of a reducing structure.

6. The carbon calciner high-temperature calcined coke waste heat recovery device according to claim 5, characterized in that: the deep cooling cavity is of a funnel-shaped structure.

7. The carbon calciner high-temperature calcined coke waste heat recovery device according to claim 1, characterized in that: and a shell is arranged on the outer side of the water-cooled wall.

8. The carbon calciner high-temperature calcined coke waste heat recovery device according to claim 1, characterized in that: the material of the feeding section is a high-temperature-resistant material.

9. The carbon calciner high-temperature calcined coke waste heat recovery device according to claim 1, characterized in that: the feeding section is of an expanding structure.

10. The utility model provides a burnt waste heat recovery system after carbon calciner high temperature is forged which characterized in that: the device comprises a carbon calciner high-temperature calcined coke waste heat recovery device, a deaerating device, a steam-water separation device and a superheating device according to any one of claims 1 to 9;