CN104109541A - Low-moisture coke quenching box and coke quenching method using same - Google Patents
Low-moisture coke quenching box and coke quenching method using same Download PDFInfo
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Abstract
The invention provides a low-moisture coke quenching box which firstly carries out primary coke quenching on high-temperature coke spraying cold water formed after carbonization, and then carries out secondary coke quenching on the coke by utilizing much vapor produced in spraying water, so that low-moisture coke is formed after coke quenching is completed; compared with the problems that the coke quenching method in the prior art cannot carry out precise control on temperature of coke-quenched semi coke, the moisture content of the coke-quenched semi coke is still higher and the coke quality is poor, the low-moisture coke quenching method disclosed by the invention can be used for not only precisely controlling the temperature of the coke-quenched coke at 70-80 DEG C, but also effectively reducing the water consumption in a coke-quenching process, so that the moisture content of the coke-quenched semi coke is low and is about 1-2%, secondary drying is avoided, and coal gas consumption is not needed; besides, produced vapor and carried dust and poisonous gas can be returned to a furnace for utilization, and excessive vapor is guided out by a pipeline and intensively treated, so that secondary pollution is avoided.
Description
Technical field
The present invention relates to a kind of Low Water Consumption Coke Quenching case and use the coke quenching method of this quenching case, belong to quenching technical field.
Background technology
At present, both at home and abroad the coke quenching method of coke oven has two kinds of dry quenching(of coke) and wet quenchings.Dry quenching(of coke) is a kind of coke quenching method with cooling red Jiao of low temperature rare gas element.In dry coke quenching process, red Jiao packs into from the dry furnace roof portion of putting out, low temperature rare gas element blasts dry putting out in stove by recirculation blower, absorb red Jiao's heat, cooled coke temperature is down to below 200 degree, from the dry furnace bottom that puts out, discharge, the high temperature inert gas after intensification imports waste heat boiler and reclaims heat, produces steam; Cooled rare gas element again blasts coke dry quenching furnace internal recycle by gas blower and uses.Yet because dry coke quenching auxiliary floor space is large, device structure is complicated, manufacture difficulty is large, maintenance cost is high, investment is large, and coke burning is serious.At present, blue charcoal industry quenching mode generally adopts wet quenching (water drags for Jiao) technology, being smelt the red-hot coke of coming out of the stove, directly falling into quenching water tank and carry out quenching, then by scraper conveyor, the coke in tank is scraped, then adopt the drying system coke that will wet to dry.In existing wet quenching method, red-hot coke is met after cold water, can produce carry contain in a large number multiple harmful substances and dust water vapour to shedding and be scattered in the air, severe contamination surrounding environment, has seriously run counter to the idea of development of environmental protection that country advocates, energy-saving and cost-reducing, comprehensive utilization.In addition, the red as fire coke of high temperature falls into tank and by scrapper conveyor, is scraped after soaking, coke is by transferring moisture Jiao who is full of moisture under destructive distillation state to, coke, under the condition of this kind of temperature variation, very easily breaks, and a part has become clay and has been deposited in stripper cell, part coke breeze and lump coke need be through drying and use again, in drying course, need coal gas, increased energy consumption, cost is high.
Chinese patent literature CN102838999A discloses a kind of Low Water Consumption Coke Quenching and residual heat using device thereof, comprise quenching stove, the first quench system, the second quench system, steam generating system, bootstrap system, this first quench system comprises steam-water mixing outlet, the second steam outlet, soft water entrance, the second quench system comprises steam-in, the first steam outlet, this first quench system and the second quench system are all in quenching stove, steam generating system entrance is connected with steam-water mixing outlet, steam generating system outlet is connected with steam-in, the second steam outlet is connected with bootstrap system entrance with the first steam outlet, bootstrap system water out is connected with soft water entrance.Red Jiao carries out respectively dividing wall type quenching and steam quenching through the first quench system and the second quench system, and steam, after heat exchange, generating, condenses into water and again enters the first quench system.Yet said apparatus is system complex not only, invest greatlyr, and water loss is still larger, quenching efficiency is low.
Chinese patent literature CN101851517A discloses a kind of dry equipment that puts out blue charcoal of vertical internally-heated hollow charring furnace, this is dry puts out blue charcoal equipment, at the burnt plate of coke discharging mouth peripheral hardware holder, blue charcoal heap both sides between coke discharging mouth and the burnt plate of holder, respectively establish a porous water pipe, water jet standpipe adopts the mode of interval water spray, after red-hot blue charcoal water spray, produce steam, play the effect of extinguishing blue charcoal; The red-hot blue charcoal of coke discharging mouth constantly moves down, and repeats to be extinguished by steam, evenly and constantly falls into the bottom of quenching vat, by the steam being full of in quenching vat, is again lowered the temperature, and finally by the sweep-out mechanism that buries that is located at quenching vat sealed bottom, is exported.Aforesaid device first adopts interval water spray mode to red-hot blue charcoal water spray, produce steam, extinguish blue charcoal, further in quenching vat, utilize again steam that the blue charcoal of high temperature constantly falling is lowered the temperature again, yet, aforesaid device can not be realized the blue charcoal temperature after quenching is accurately controlled, and after quenching, the water content of blue charcoal is still higher, and blue charcoal is of poor quality.In addition, this device separates two blue charcoal storehouses by two switches are set, and in actually operating, and above-mentioned two switches are prone to and occur blocking phenomenon and steam leakage phenomenon in closing process, and operation troubles rate is high.
Summary of the invention
Technical problem to be solved by this invention is that coke quenching device of the prior art exists to realize the blue charcoal temperature after quenching is accurately controlled, after quenching, the water content of blue charcoal is still higher, the problem of blue charcoal poor product quality, thus propose the Low Water Consumption Coke Quenching case that a kind of water resources consumption is little, coke quality is high and use the coke quenching method of this quenching case.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A Low Water Consumption Coke Quenching case, comprising:
Quenching chamber, is provided with into Jiao Kou in the one end in described quenching chamber, and the other end is provided with coke outlet, and described quenching chamber is suitable for quenching material and flows from the described Jiao Kou of entering to described coke outlet, and the described quenching material flowing is full of the cavity in whole quenching chamber;
Wherein, be also provided with:
Spray chamber, the periphery of being close to described quenching chamber arranges, and in described spray chamber, is provided with spray equipment, on the wall between described spray chamber and described quenching chamber, is provided with through hole, and described quenching chamber is connected by described through hole with spray chamber;
The wall in the wall in described quenching chamber and described spray chamber forms an enclosed construction.
On wall between described spray chamber and described quenching chamber, be provided with separation net, the mesh of described separation net forms described through hole.
The aperture of described separation net is 20mm-200mm.
Described spray chamber is set to a plurality of, and described a plurality of sprays chamber was communicated with by communicating pipe.
Described quenching chamber vertically arranges, described in enter the top and bottom that Jiao Kou and coke outlet are separately positioned on described quenching chamber.
Described quenching chamber comprises and is vertically arranged in order from top to bottom setting:
Spray section, described spray section is that cross section first increases the elongated slot body reducing gradually more from top to bottom gradually;
The section of the discharging of the coke, described in the elongated slot body that reduces gradually from top to bottom for cross section of the section of the discharging of the coke;
The periphery that described spray section is close in described spray chamber arranges.
The ratio of the height of described spray section, the section of the discharging of the coke is 1:1; The maximum width of described spray section is 600mm-1200mm, described in the minimum width of the section of the discharging of the coke be 300mm-600mm.
A Low Water Consumption Coke Quenching method based on described Low Water Consumption Coke Quenching case, it comprises the steps:
(1) to spray water in the high temperature coke forming after charing, carry out a quenching, the amount of spray water is 180 kilograms/coke per ton;
(2) in step (1), after spray water in described high temperature coke, form a large amount of water vapors, coke is full of the cavity in whole quenching chamber, utilizes described water vapor to carry out secondary quenching to described coke;
(3) by completing the low moisture coke forming after secondary quenching, discharge.
The temperature that completes the low moisture coke forming after secondary quenching is 70-80 ℃.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) the invention provides a kind of Low Water Consumption Coke Quenching case, by being close in periphery, quenching chamber, spray chamber is set, and be provided with spray equipment in described spray chamber, on the wall between described spray chamber and described quenching chamber, be provided with through hole, described quenching chamber is connected by described through hole with spray chamber; The wall in the wall in described quenching chamber and described spray chamber forms an enclosed construction; Thereby first utilize spray equipment to carry out a quenching to spraying cold water in the high temperature coke in quenching case, recycle a large amount of water vapors that form after above-mentioned spray cold water described coke is carried out to secondary quenching; Be conducive to obtain the low moisture coke that quality is higher, coke quenching device compared to prior art can not be realized the blue charcoal temperature after quenching is accurately controlled, after quenching, the water content of blue charcoal is still higher, blue charcoal problem of poor quality, Low Water Consumption Coke Quenching device of the present invention is not only realized the coke temperature after quenching is accurately controlled to 70-80 ℃, can also effectively reduce the water loss of quenching process, coke moisture content content after quenching is low, be about 1-2%, avoid secondary drying, without gas consumption; In addition, to the water vapour producing and carry certain dust and toxic gas, can again return stove utilization, excessive water vapour is drawn and is focused on through pipeline, stops secondary pollution.
(2) the invention provides a kind of Low Water Consumption Coke Quenching case, the cross section that described quenching chamber spray section is set first increases and reduces gradually more gradually from top to bottom, the cross section of the described section of the discharging of the coke reduces from top to bottom gradually, thereby be conducive to realize high temperature coke and in moving process, carrying out uniform distribution from top to bottom, guarantee that spray water evenly sprays it, can also effectively avoid coke in moving process generation putty phenomenon simultaneously.
(3) the invention provides a kind of Low Water Consumption Coke Quenching device, the closed-loop feedback control system that comprises spray water regulation system and coke discharging temperature sensor is also set, wherein, described spray water regulation system is connected setting with described spray equipment, for regulating spray cool water quantity; Described coke discharging temperature sensor is arranged on coke quenching device bottom, for measuring the coke temperature of discharging from described coke quencher, thereby described spray water regulation system is connected with described coke discharging temperature sensor, arranges and form the closed-loop feedback control system that sprays cold water, can be effectively and accurately control the amount of spray water, guaranteed that coke temperature is 70 ℃～80 ℃ from described coke quenching device is discharged quenching simultaneously.
(4) a kind of Low Water Consumption Coke Quenching method provided by the invention, by first the high temperature coke spray cold water forming after charing being carried out to a quenching, the a large amount of water vapors that produce when utilizing spray water carry out secondary quenching to described coke, formation low moisture coke after quenching completes; Coke quenching method compared to prior art exists to realize the blue charcoal temperature after quenching is accurately controlled, after quenching, the water content of blue charcoal is still higher, the problem that coke quality is poor, Low Water Consumption Coke Quenching method of the present invention not only realizes the coke temperature after quenching is accurately controlled to 70-80 ℃, can also effectively reduce the water loss of quenching process, the coke moisture content content after quenching is low, is about 1-2%, avoid secondary drying, without gas consumption; In addition, to the water vapour producing and carry certain dust and toxic gas, can again return stove utilization, excessive water vapour is drawn and is focused on through pipeline, stops secondary pollution.
Accompanying drawing explanation
For content of the present invention is more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Shown in Fig. 1, be that quenching of the present invention chamber is the sectional structure chart of the Low Water Consumption Coke Quenching device of elongated slot body;
Shown in Fig. 2, be that quenching of the present invention chamber is the side-view of the Low Water Consumption Coke Quenching device of elongated slot body;
Shown in Fig. 3, be that quenching of the present invention chamber is the sectional structure chart of the Low Water Consumption Coke Quenching device of the cylindrical shell that diameter is constant;
Shown in Fig. 4, be that quenching of the present invention chamber is the attached view of the Low Water Consumption Coke Quenching device of the cylindrical shell that diameter is constant;
Wherein, Reference numeral is expressed as: 1-Low Water Consumption Coke Quenching case, and 2-quenching chamber, 3-sprays chamber, 4-through hole, 5-communicating pipe.
Embodiment
Embodiment 1
The present embodiment provides a kind of Low Water Consumption Coke Quenching case 1, as Fig. 1 and Fig. 2 be respectively as described in Low Water Consumption Coke Quenching case cross-sectional view and side-view, its structure comprises:
Quenching chamber 2, vertically arrange, in the upper end in described quenching chamber 2, be provided with into Jiao Kou, lower end is provided with coke outlet, thereby described quenching chamber 2 is suitable for quenching material to flow from the described Jiao Kou of entering to described coke outlet, and the described quenching material flowing is full of the cavity in whole quenching chamber 2; The external form of described Low Water Consumption Coke Quenching case is long groove body type;
Spray chamber 3, the periphery of being close to described quenching chamber 2 arranges, and in described spray chamber 3, is provided with spray equipment, on the wall between described spray chamber 3 and described quenching chamber 2, is provided with through hole 4, and described quenching chamber 2 is connected by described through hole 4 with spray chamber 3; On the wall between described spray chamber 3 and described quenching chamber 2, be provided with separation net, the mesh of described separation net forms described through hole 4, and the aperture of described separation net is 20mm;
The wall in the wall in described quenching chamber and described spray chamber 3 forms an enclosed construction.
Further, described quenching chamber comprises and is vertically arranged in order setting:
Spray section, described spray section is that cross section first increases the elongated slot body reducing gradually more from top to bottom gradually, the maximum width of described spray section is 600mm; Described in the present embodiment, spray chamber and be close to the periphery setting of described spray section;
The section of the discharging of the coke, described in the elongated slot body that reduces gradually from top to bottom for cross section of the section of the discharging of the coke, described in the minimum width of the section of the discharging of the coke be 300mm;
The height of spray section, the section of the discharging of the coke described in the present embodiment is respectively 700mm, and the ratio of the height of the two is 1:1.
Low Water Consumption Coke Quenching method based on Low Water Consumption Coke Quenching case 1 described in the present embodiment, it comprises the steps:
(1) high temperature coke forming after charing is sent in described quenching chamber, coke is full of the cavity in whole quenching chamber, utilizes described spray equipment to carry out a quenching to described high temperature coke spray water; The amount of spray water is 180 kilograms/coke per ton;
(2) in step (1), after described high temperature coke spray water, form a large amount of water vapors, utilize described water vapor to carry out secondary quenching to described coke, the temperature that completes the low moisture coke forming after secondary quenching is 70-80 ℃.
(3) by completing the low moisture coke forming after secondary quenching, from described coke outlet, discharge.
Embodiment 2
The present embodiment provides a kind of Low Water Consumption Coke Quenching case 1, and its structure comprises:
Quenching chamber 2, vertically arrange, in the upper end in described quenching chamber 2, be provided with into Jiao Kou, lower end is provided with coke outlet, thereby described quenching chamber 2 is suitable for quenching material to flow from the described Jiao Kou of entering to described coke outlet, and the described quenching material flowing is full of the cavity in whole quenching chamber 2; The chamber of quenching described in the present embodiment 2 is that cylindrical shell and its diameter vertically arranging first expands afterwards and reduces along short transverse;
Four spray chambeies 3, the peripheral both sides of being close to described quenching chamber 2 arrange, and described four spray chambeies 3 were communicated with by communicating pipe 5;
In described spray chamber 3, be provided with spray equipment, on the wall between described spray chamber 3 and described quenching chamber 2, be provided with through hole 4, described quenching chamber 2 is connected by described through hole 4 with spray chamber 3; On the wall between described spray chamber 3 and described quenching chamber 2, be provided with separation net, the mesh of described separation net forms described through hole 4, and the aperture of described separation net is 200mm;
The wall in the wall in described quenching chamber and described spray chamber 3 forms an enclosed construction.
Further, described quenching chamber comprises and is vertically arranged in order setting:
Spray section, described spray section is that cross section first increases the cylindrical shell reducing gradually more from top to bottom gradually, the maximum diameter of described spray section is 1200mm; Described in the present embodiment, spray chamber and be close to the periphery setting of described spray section;
The section of the discharging of the coke, described in the cylindrical shell that reduces gradually from top to bottom for cross section of the section of the discharging of the coke, as the embodiment that can select, described in the minimum diameter of the section of the discharging of the coke be 600mm;
The height of spray section, the section of the discharging of the coke described in the present embodiment is 600mm, and the ratio of the height of described spray section, the section of the discharging of the coke is 1:1.
Low Water Consumption Coke Quenching method based on Low Water Consumption Coke Quenching case 1 described in the present embodiment, it comprises the steps:
(1) high temperature coke forming after charing is sent in described quenching chamber, coke is full of the cavity in whole quenching chamber, utilizes described spray equipment to carry out a quenching to described high temperature coke spray water; The amount of spray water is 160 kilograms/coke per ton;
(2) in step (1), after described high temperature coke spray water, form a large amount of water vapors, utilize described water vapor to carry out secondary quenching to described coke, the temperature that completes the low moisture coke forming after secondary quenching is 70-80 ℃.
(3) by completing the low moisture coke forming after secondary quenching, from described coke outlet, discharge.
Embodiment 3
The present embodiment provides a kind of Low Water Consumption Coke Quenching case 1, as Fig. 3, Fig. 4 be respectively as described in cross-sectional view and the vertical view of Low Water Consumption Coke Quenching case, its structure comprises:
Quenching chamber 2, vertically arrange, in the upper end in described quenching chamber 2, be provided with into Jiao Kou, lower end is provided with coke outlet, thereby described quenching chamber 2 is suitable for quenching material to flow from the described Jiao Kou of entering to described coke outlet, and the described quenching material flowing is full of the cavity in whole quenching chamber 2; The chamber of quenching described in the present embodiment 2 is the cylindrical shell that diameter is constant;
Four spray chambeies 3, the peripheral both sides of being close to described quenching chamber 2 arrange, and described four spray chambeies 3 were communicated with by communicating pipe 5;
In described spray chamber 3, be provided with spray equipment, on the wall between described spray chamber 3 and described quenching chamber 2, be provided with through hole 4, described quenching chamber 2 is connected by described through hole 4 with spray chamber 3; On the wall between described spray chamber 3 and described quenching chamber 2, be provided with separation net, the mesh of described separation net forms described through hole 4, and the aperture of described separation net is 200mm;
The wall in the wall in described quenching chamber and described spray chamber 3 forms an enclosed construction.
Further, described quenching chamber comprises and is vertically arranged in order setting:
Spray section, the diameter of described spray section is 600mm; Described in the present embodiment, spray chamber and be close to the periphery setting of described spray section;
The section of the discharging of the coke, described in the diameter of the section of the discharging of the coke be 600mm;
The height of spray section, the section of the discharging of the coke described in the present embodiment is 600mm, and the ratio of the height of described spray section, the section of the discharging of the coke is 1:1.
Low Water Consumption Coke Quenching method based on Low Water Consumption Coke Quenching case 1 described in the present embodiment, it comprises the steps:
(1) high temperature coke forming after charing is sent in described quenching chamber, coke is full of the cavity in whole quenching chamber, utilizes described spray equipment to carry out a quenching to described high temperature coke spray water; The amount of spray water is 200 kilograms/coke per ton;
(2) in step (1), after described high temperature coke spray water, form a large amount of water vapors, utilize described water vapor to carry out secondary quenching to described coke, the temperature that completes the low moisture coke forming after secondary quenching is 70-80 ℃.
(3) by completing the low moisture coke forming after secondary quenching, from described coke outlet, discharge.
Low Water Consumption Coke Quenching method of the present invention, by first the high temperature coke spray cold water forming after charing being carried out to a quenching, a large amount of water vapors that produce when utilizing spray water carry out secondary quenching to described coke, formation low moisture coke after quenching completes; Coke quenching method compared to prior art can not be realized the blue charcoal temperature after quenching is accurately controlled, after quenching, the water content of blue charcoal is still higher, the problem of blue charcoal poor product quality, Low Water Consumption Coke Quenching method of the present invention not only realizes the coke temperature after quenching is accurately controlled to 70-80 ℃, can also effectively reduce the water loss of quenching process, the coke moisture content content after quenching is low, is about 1-2%, avoid secondary drying, without gas consumption; In addition, to the water vapour producing and carry certain dust and toxic gas, can again return stove utilization, excessive water vapour is drawn and is focused on through pipeline, stops secondary pollution.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being extended out thus or change are still among the protection domain in the invention.
Claims (9)
1. a Low Water Consumption Coke Quenching case, comprising:
Quenching chamber, is provided with into Jiao Kou in the one end in described quenching chamber, and the other end is provided with coke outlet, and described quenching chamber is suitable for quenching material and flows from the described Jiao Kou of entering to described coke outlet, and the described quenching material flowing is full of the cavity in whole quenching chamber;
It is characterized in that, be also provided with:
Spray chamber, the periphery of being close to described quenching chamber arranges, and in described spray chamber, is provided with spray equipment, on the wall between described spray chamber and described quenching chamber, is provided with through hole, and described quenching chamber is connected by described through hole with spray chamber;
The wall in the wall in described quenching chamber and described spray chamber forms an enclosed construction.
2. Low Water Consumption Coke Quenching case according to claim 1, is characterized in that, on the wall between described spray chamber and described quenching chamber, is provided with separation net, and the mesh of described separation net forms described through hole.
3. Low Water Consumption Coke Quenching case according to claim 2, is characterized in that, the aperture of described separation net is 20mm-200mm.
4. according to the arbitrary described Low Water Consumption Coke Quenching case of claim 1-3, it is characterized in that, described spray chamber is set to a plurality of, and described a plurality of sprays chamber was communicated with by communicating pipe.
5. according to the arbitrary described Low Water Consumption Coke Quenching case of claim 1-4, it is characterized in that, described quenching chamber vertically arranges, described in enter the top and bottom that Jiao Kou and coke outlet are separately positioned on described quenching chamber.
6. according to the arbitrary described Low Water Consumption Coke Quenching case of claim 1-5, it is characterized in that, described quenching chamber comprises and is vertically arranged in order from top to bottom setting:
Spray section, described spray section is that cross section first increases the elongated slot body reducing gradually more from top to bottom gradually;
The section of the discharging of the coke, described in the elongated slot body that reduces gradually from top to bottom for cross section of the section of the discharging of the coke;
The periphery that described spray section is close in described spray chamber arranges.
7. Low Water Consumption Coke Quenching case according to claim 6, is characterized in that, the ratio of the height of described spray section, the section of the discharging of the coke is 1:1; The maximum width of described spray section is 600mm-1200mm, described in the minimum width of the section of the discharging of the coke be 300mm-600mm.
8. the Low Water Consumption Coke Quenching method based on Low Water Consumption Coke Quenching case described in claim 1-7, is characterized in that, comprises the steps:
(1) high temperature coke forming after charing is sent in described quenching chamber, coke is full of the cavity in whole quenching chamber, utilizes described spray equipment to carry out a quenching to described high temperature coke spray water, and the amount of spray water is 160-200 kilogram/coke per ton;
(2) in step (1), after described high temperature coke spray water, form a large amount of water vapors, utilize described water vapor to carry out secondary quenching to described coke;
(3) by completing the low moisture coke forming after secondary quenching, discharge.
9. Low Water Consumption Coke Quenching method according to claim 8, is characterized in that, the temperature that completes the low moisture coke forming after secondary quenching is 70-80 ℃.
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| CN204079885U (en) * | 2014-07-22 | 2015-01-07 | 华电重工股份有限公司 | Low Water Consumption Coke Quenching case and the coke quenching device based on this quenching case |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105131979A (en) * | 2015-08-03 | 2015-12-09 | 中冶焦耐工程技术有限公司 | Discharge device for continuous dry distillation furnace |
| CN109233876A (en) * | 2018-10-15 | 2019-01-18 | 中冶焦耐(大连)工程技术有限公司 | A kind of three-dimensional water cooling coke quenching cart and its working method of the water supply of bottom single channel |
| CN109233876B (en) * | 2018-10-15 | 2024-01-09 | 中冶焦耐(大连)工程技术有限公司 | Three-dimensional water-cooling coke quenching car with bottom supplied with water in single way and working method thereof |
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