CN110749189A - Novel white lime cellar with waste heat utilization function - Google Patents

Novel white lime cellar with waste heat utilization function Download PDF

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Publication number
CN110749189A
CN110749189A CN201810820105.XA CN201810820105A CN110749189A CN 110749189 A CN110749189 A CN 110749189A CN 201810820105 A CN201810820105 A CN 201810820105A CN 110749189 A CN110749189 A CN 110749189A
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CN
China
Prior art keywords
cellar
waste heat
heat utilization
pipe
pit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810820105.XA
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Chinese (zh)
Inventor
郑庆路
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tangshan Fengnan Fenggang Ash Industry Co Ltd
Original Assignee
Tangshan Fengnan Fenggang Ash Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tangshan Fengnan Fenggang Ash Industry Co Ltd filed Critical Tangshan Fengnan Fenggang Ash Industry Co Ltd
Priority to CN201810820105.XA priority Critical patent/CN110749189A/en
Publication of CN110749189A publication Critical patent/CN110749189A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/10—Rotary-drum furnaces, i.e. horizontal or slightly inclined internally heated, e.g. by means of passages in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/14—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge
    • F27B7/16—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means
    • F27B7/161—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means the means comprising projections jutting out from the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/2016—Arrangements of preheating devices for the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/34—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F27D2017/006—Systems for reclaiming waste heat using a boiler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/03—Calcining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

The invention discloses a novel white lime pit with a waste heat utilization function, which comprises a feeding structure, a discharging mechanism, a pit body and a waste heat utilization device, wherein the pit body is divided into an inner pit and an outer pit, the inner pit and the outer pit are connected through a spiral support, the right end of the inner pit is connected with a combustion chamber, the left end of the inner pit is connected with a material warming pipe through a first connecting device, the material warming pipe is wound outside a feeding pipe, and the right end of the material warming pipe is sequentially connected with a boiler, a steam turbine and a generator. The raw materials are rolled and moved simultaneously through the rotation of the kiln body, the spiral support in the outer kiln and the self gravity of the raw materials, so that the raw materials can be more fully calcined without adding extra conveying equipment; the inner cellar and the outer cellar realize the separation of the fuel and the raw materials, and avoid the instability of the calcination quality; waste gas and heat in the interior cellar for storing things turn into the electric energy, and waste gas still can preheat the raw materials when flowing through the heating tube simultaneously, realizes the make full use of waste gas.

Description

Novel white lime cellar with waste heat utilization function
Technical Field
The invention relates to the field of lime production, in particular to a novel lime pit with a waste heat utilization function.
Background
The lime has wide raw material distribution and simple production process, so the cost is extremely low. The lime can be divided into calcium lime and magnesium lime according to the content of magnesium oxide. Lime has strong alkalinity, and reacts with vitreous silica or activated alumina at room temperature to produce a hydraulic product, and thus, lime is widely used in the building material industry as an important raw material. The production method of the lime generally comprises the steps of calcining raw white raw materials (calcium carbonate) at high temperature in a lime kiln to decompose the calcium carbonate into calcium oxide and carbon dioxide gas, wherein the calcium oxide is the lime, the high-temperature gas generated by combustion in the existing lime kiln is introduced into a kiln body in which the raw materials are placed for calcination, the gas usually contains fuels and dust which are not sufficiently combusted, the impurities can be attached to the raw materials in the calcination process, the quality of the finally obtained product is reduced, and meanwhile, a large amount of calcination waste heat in the kiln body cannot be fully utilized, so that energy waste is caused, and the environment protection is not facilitated.
Disclosure of Invention
The invention aims to provide a novel white lime pit with a waste heat utilization function, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a novel white ash cellar for storing things with waste heat utilization function, includes feed structure, unloading mechanism, the cellar for storing things body and waste heat utilization equipment, its characterized in that, the cellar for storing things body be the cylinder structure, the external round of having plays supporting role's first support ring and second support ring of cellar for storing things, there is the rotating device who provides rotation power the external side of cellar for storing things, the external side of cellar for storing things still is equipped with the round gas collecting pipe, the cellar for storing things body including interior cellar for storing things and outer cellar for storing things two parts, connect for triangle-shaped's spiral support through the cross-section between interior cellar for storing things and the outer cellar for storing things, interior cellar for storing things is a cylinder cavity, and interior cellar for storing things right-hand member passes through the second connecting device and links to each other with the combustion chamber, and the left end of interior cellar for storing things links to each other with the collection cover through first connecting device, and.
As a further scheme of the invention: the feeding mechanism is characterized in that a hopper is arranged at the lower end of a feeding machine, the lower portion of the hopper is connected with a feeding pipe through a feeding door, and the rear end of the feeding pipe is connected with a feeding pipe.
As a still further scheme of the invention: the feeding pipe is arranged at an inclination angle of 5-15 degrees with the horizontal plane, and the tail end of the feeding pipe extends into the left end of the outer cellar.
As a still further scheme of the invention: and balls are arranged between the first support ring and the second support ring and are limited in the stop blocks on the support rings.
As a still further scheme of the invention: the rotating devices are four and are uniformly distributed on the periphery of the cellar body.
As a still further scheme of the invention: the cellar body and the gas collecting pipe are connected through a branch pipe.
As a still further scheme of the invention: and a discharging hopper is arranged outside the right end of the outer cellar, and a discharging port is arranged at the lower end of the discharging hopper.
Compared with the prior art, the invention has the beneficial effects that: the raw materials are rolled and moved simultaneously through the rotation of the kiln body, the spiral support in the outer kiln and the self gravity of the raw materials, so that the raw materials can be more fully calcined without adding extra conveying equipment; the high-temperature gas generated by the combustion chamber filled in the inner cellar raises the temperature of the inner cellar and heats the outer cellar, so that the raw material in the outer cellar is calcined, the separation of the fuel and the raw material is realized, and the instability of the calcination quality is avoided; waste gas and heat in the interior cellar for storing things turn into the electric energy through subsequent boiler, steam turbine and generator, and waste gas still can preheat the raw materials that do not get into the cellar for storing things body in the conveying pipe when warm material pipe is flowed through to the while, realizes the make full use of waste gas.
Drawings
Fig. 1 is a schematic structural diagram of a novel white lime pit with a waste heat utilization function.
Fig. 2 is a schematic structural view of a section a-a in fig. 1.
Fig. 3 is a schematic structural view of a section B-B in fig. 1.
Fig. 4 is a schematic structural view of a section C-C in fig. 1.
In the figure: 1-a batch feeder, 2-a hopper, 3-a feeding pipe, 4-a feeding pipe, 5-a first connecting device, 6-an outer cellar, 7-a first supporting ring, 8-a cellar body, 9-an inner cellar, 10-balls, 11-a second supporting ring, 12-a rotating device, 13-a combustion chamber, 14-a discharging hopper, 15-a discharging port, 16-a boiler, 17-a steam turbine, 18-a generator, 19-a collecting cover, 20-a warming pipe, 21-a feeding door, 22-a raw material, 23-a gas collecting pipe, 24-a second connecting device, 231-a branch pipe, 61-a spiral support and 71-a stop block.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-4, a novel white lime kiln with waste heat utilization function comprises a feeding structure, a discharging mechanism, a kiln body 8 and a waste heat utilization device, wherein a feeding machine 1 in the feeding mechanism continuously conveys a raw material 22 into a hopper 2 for temporary storage, after the raw material 22 reaches a certain amount, a feeding door 21 below the hopper 2 is opened, the raw material 22 is conveyed into a feeding pipe 4 through a feeding pipe 3 by means of gravity, the feeding pipe 4 is arranged at an inclination angle of 10 degrees with the horizontal plane and the tail end of the feeding pipe extends into the left end of an outer kiln 6, the kiln body 8 is of a cylindrical structure, a circle of first supporting ring 7 and a circle of second supporting ring 11 are arranged outside the kiln body 8 for supporting, a ball 10 is arranged between the first supporting ring 7 and the second supporting ring 11, the ball 10 is limited in a stop block 71 on the supporting rings, the kiln body 8 obtains power through four rotating devices 12 which are in contact with each other to rotate, the cellar for storing things body 8 outside still is equipped with round gas collecting pipe 23, connects through branch pipe 231 between the cellar for storing things body 8 and the gas collecting pipe 23, and cellar for storing things body 8 includes interior cellar for storing things 9 and outer 6 two parts in cellar for storing things, connect for triangle-shaped's spiral support 61 through the cross-section between interior cellar for storing things 9 and the outer 6, interior cellar for storing things 9 is a cylinder cavity, and interior cellar for storing things 9 right-hand member passes through second connecting device 24 and links to each other with combustion chamber 13, and the left end of interior cellar for storing things 9 links to each other with collection cover 19 through first connecting device 5, and collection cover 19 rear end even has warm material pipe 20, and warm material pipe 20 twines outside conveying pipe 4, and the right-hand member of warm material pipe 20 has connected gradually boiler 16, steam turbine 17 and generator 18, and outer.
The working principle of the invention is as follows: the raw material 22 is conveyed into the outer cellar 6 through a feeding mechanism, the rotation of the cellar body 8 enables the spiral support 61 in the outer cellar 6 to generate thrust to the raw material 22, the raw material 22 rolls under the action of the thrust of the spiral support 61 and the self gravity and moves to the right side of the cellar body 8, at the moment, the inner cellar is filled with high-temperature gas generated by the combustion chamber 13, the gas enters from the right side of the inner cellar 9 and moves to the left side, the temperature of the inner cellar 9 is increased and the outer cellar 6 is heated, then the raw material 22 in the outer cellar 6 is calcined, the calcined raw material 22 is conveyed to the rightmost end of the cellar body 8 and is collected by the blanking hopper 14, and finally the calcined raw material is output through the discharge port 15; the surplus waste gas and heat in the inner kiln 9 flow into the boiler 16 through the leftmost first connecting device 5 and the warming material pipe 20 and are converted into electric energy through the subsequent steam turbine 17 and the generator 18, and when the waste gas flows through the warming material pipe 20, the raw material 22 which does not enter the kiln body 8 in the feeding pipe 4 is preheated, so that the further utilization of the waste gas is realized.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A novel white ash cellar with waste heat utilization function comprises a feeding structure, a discharging mechanism, a cellar body (8) and a waste heat utilization device, and is characterized in that the cellar body (8) is of a cylindrical structure, a circle of first support ring (7) and a circle of second support ring (11) which play a supporting role are arranged outside the cellar body (8), a rotating device (12) which provides rotating power is arranged outside the cellar body (8), a circle of gas collecting pipe (23) is further arranged outside the cellar body (8), the cellar body (8) comprises an inner cellar (9) and an outer cellar (6), the inner cellar (9) and the outer cellar (6) are connected through a spiral support (61) with a triangular section, the inner cellar (9) is a cylindrical cavity, the inner cellar (9) is connected with a combustion chamber (13) through a second connecting device (24), the left end of the inner cellar (9) is connected with a collecting cover (19) through a first connecting device (5), the rear end of the collecting cover (19) is connected with a material warming pipe (20), the material warming pipe (20) is wound outside the feeding pipe (4), and the right end of the material warming pipe (20) is sequentially connected with a boiler (16), a steam turbine (17) and a generator (18).
2. The novel white lime pit with the waste heat utilization function according to claim 1, wherein a hopper (2) is arranged at the lower end of a feeding machine (1) in the feeding mechanism, the lower part of the hopper (2) is connected with a feeding pipe (3) through a feeding door (21), and the rear end of the feeding pipe (3) is connected with a feeding pipe (4).
3. The new lime kiln with waste heat utilization function as claimed in claim 2, characterized in that the feeding pipe (4) is placed at an inclination of 5-15 degrees from the horizontal and its end goes deep into the left end of the outer kiln (6).
4. The new lime kiln with waste heat utilization function according to claim 1, characterized in that balls (10) are arranged between the first support ring (7) and the second support ring (11), the balls (10) being confined in stops (71) on the support rings.
5. The lime kiln with waste heat utilization function as claimed in claim 4, wherein the number of the rotating devices (12) is four, and the rotating devices are evenly distributed on one circle of the kiln body (8).
6. The new lime kiln with waste heat utilization function as claimed in claim 5, characterized in that the kiln body (8) and the gas collecting pipe (23) are connected by a branch pipe (231).
7. A method for preparing a novel white lime kiln with waste heat utilization function according to any one of claims 1-6, characterized in that a discharging hopper (14) is arranged outside the right end of the outer kiln (6), and a discharging hole (15) is arranged at the lower end of the discharging hopper (14).
CN201810820105.XA 2018-07-24 2018-07-24 Novel white lime cellar with waste heat utilization function Pending CN110749189A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810820105.XA CN110749189A (en) 2018-07-24 2018-07-24 Novel white lime cellar with waste heat utilization function

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Application Number Priority Date Filing Date Title
CN201810820105.XA CN110749189A (en) 2018-07-24 2018-07-24 Novel white lime cellar with waste heat utilization function

Publications (1)

Publication Number Publication Date
CN110749189A true CN110749189A (en) 2020-02-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112033145A (en) * 2020-11-05 2020-12-04 小跃科技(北京)有限公司 Rotary kiln capable of improving calcination efficiency

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104016596A (en) * 2014-05-27 2014-09-03 石家庄新华能源环保科技股份有限公司 Rotary kiln with power generation device
CN104357611A (en) * 2014-09-29 2015-02-18 石家庄新华能源环保科技股份有限公司 Method and device for reduction ironmaking by dividing wall rotary kiln
CN104630405A (en) * 2015-02-04 2015-05-20 石家庄新华能源环保科技股份有限公司 Partition wall rotary kiln for ferroelectric and coke coproduction
CN104792154A (en) * 2015-04-03 2015-07-22 石家庄新华能源环保科技股份有限公司 Dividing wall type rotary kiln device
CN104803615A (en) * 2015-03-24 2015-07-29 石家庄新华能源环保科技股份有限公司 Heat accumulating type lime rotary kiln
CN106907933A (en) * 2017-01-13 2017-06-30 石家庄新华能源环保科技股份有限公司 A kind of partition rotary kiln production of energy-conserving and environment-protective and electricity generation system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104016596A (en) * 2014-05-27 2014-09-03 石家庄新华能源环保科技股份有限公司 Rotary kiln with power generation device
CN104357611A (en) * 2014-09-29 2015-02-18 石家庄新华能源环保科技股份有限公司 Method and device for reduction ironmaking by dividing wall rotary kiln
CN104630405A (en) * 2015-02-04 2015-05-20 石家庄新华能源环保科技股份有限公司 Partition wall rotary kiln for ferroelectric and coke coproduction
CN104803615A (en) * 2015-03-24 2015-07-29 石家庄新华能源环保科技股份有限公司 Heat accumulating type lime rotary kiln
CN104792154A (en) * 2015-04-03 2015-07-22 石家庄新华能源环保科技股份有限公司 Dividing wall type rotary kiln device
CN106907933A (en) * 2017-01-13 2017-06-30 石家庄新华能源环保科技股份有限公司 A kind of partition rotary kiln production of energy-conserving and environment-protective and electricity generation system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112033145A (en) * 2020-11-05 2020-12-04 小跃科技(北京)有限公司 Rotary kiln capable of improving calcination efficiency
CN112033145B (en) * 2020-11-05 2021-03-02 小跃科技(北京)有限公司 Rotary kiln capable of improving calcination efficiency

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Application publication date: 20200204