CN101362951B - Cooling water jacket of petroleum coke can-type calcine furnace - Google Patents
Cooling water jacket of petroleum coke can-type calcine furnace Download PDFInfo
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- CN101362951B CN101362951B CN200810139761XA CN200810139761A CN101362951B CN 101362951 B CN101362951 B CN 101362951B CN 200810139761X A CN200810139761X A CN 200810139761XA CN 200810139761 A CN200810139761 A CN 200810139761A CN 101362951 B CN101362951 B CN 101362951B
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Abstract
The invention discloses a petroleum coke pot typed calciner cooling water jacket, comprising a step-one heat exchanging device which is used for enclosing a high-temperature material passage; the step-one heat exchanging device comprises a ring-shaped upper container which is provided with a water outlet, a ring-shaped lower container which is provided with a water inlet, a plurality of heat exchanging pipes which are fixedly connected with the upper container and the lower container and communicated with each other respectively, a heat guiding baffle which is fixedly connected between two adjacent heat exchanging pipes; the high-temperature material passage which is enclosed by the step-one heat exchanging device is internally provided with a step-two heat exchanging device. The cooling water sleeve has good rigidity, and is not easy to generate thermal deformation; furthermore, the heat exchanging area is large and the cooling and heat exchanging effect is good; by increasing the step-two heat exchanging device, the uniformity of the temperature inside the whole passage is greatly improved, the temperature of the outgoing material is lowered from 300 DEG C to 150 DEG C; with the reduction of the temperature of the material, the service life of the material drainage valve is prolonged, and the malfunction rate of the material drainage system is reduced.
Description
Technical field
The present invention relates to the petroleum coke can-type calcine furnace technical field, the cooling heat transferring device that being used for of relating in particular to that a kind of petroleum coke can-type calcine furnace uses cools off high-temperature material.
Background technology
Petroleum coke is the hard solid petroleum products of black or lead, has metallic luster, is porous, is to form the charcoal body thing that granular, column or needle-like constitute by small graphite crystallization.The main application of petroleum coke is the used prebaked anode of electrolytic aluminium and anode mix, carbon element industry production carburetant, graphite electrode, smelting commercial silicon and fuel etc.When the anode mix (melting electrode) that the graphite electrode of steel-making usefulness or system aluminium, system magnesium are used, adapt to requirement for making petroleum coke (green coke), must calcine green coke.Calcining heat is generally about 1300 ℃, purpose is that volatile fraction in petroleum coke is removed as far as possible, can reduce the hydrogen content of petroleum coke reproduced goods like this, and the degree of graphitization of petroleum coke is improved, thereby improve the elevated temperature strength and the heat resistance of graphite electrode, and improved the electrical conductivity of graphite electrode.Calcined coke is mainly used in produces graphite electrode, charcoal paste, Buddha's warrior attendant sand, the industry of food-grade phosphorus, metallurgical industry and calcium carbide etc., and wherein most widely used is graphite electrode.
Current, can-type calcine furnace is the capital equipment that petroleum coke is calcined, and therefore calcining heat need pass through a cooling device generally about 1300 ℃ when discharging, and the temperature of calcined coke is lowered.Common cooling device is a water jacket normally, and it is welded by double-layer plate, and inner layer steel plate surrounds the passage of a high-temperature material, forms the mezzanine space of sealing between inner layer steel plate and the outer layer plate.When high-temperature material flow through from the passage of water jacket, heat wherein conducted to the recirculated water in the mezzanine space by inner layer steel plate, thereby played the effect of cooling material.But, there is following shortcoming in use in such structure: 1) inner layer steel plate and outer layer plate adopt integral solder, because the temperature when high-temperature material enters water jacket is approximately between 1100 ℃～1200 ℃, be easy to make inner layer steel plate to produce thermal deformation, thereby cause weld cracking, cause and leak, influence product quality.2) chilling temperature is inhomogeneous, and very fast near the high-temperature material heat conduction velocity of inner layer steel plate, temperature is lower, and the high-temperature material that is in the centre is just slower away from the high-temperature material heat conduction velocity of inner layer steel plate, and temperature is higher.From material cooling angle, the inhomogeneous of temperature can influence product quality; From the recycling angle of heat, lot of energy is along with the discharge of material has wasted; Angle from equipment uses because the partial material temperature is too high, has shortened the service life of blow-off valve, has increased the fault rate of discharge system.
Summary of the invention
Technical problem to be solved by this invention is: a kind of cooling water jacket of petroleum coke can-type calcine furnace is provided, and to solve the technical problem that its heat-conduction component easily produces thermal deformation, this cooling heat transferring device uses reliable, and cooling heat transferring is effective, and in light weight, and cost is low.
For solving the problems of the technologies described above, technical scheme of the present invention is: cooling water jacket of petroleum coke can-type calcine furnace, comprise the one-level heat-exchanger rig that is used to surround the high-temperature material passage, described one-level heat-exchanger rig comprises the upper collecting chamber of an annular, and described upper collecting chamber is provided with delivery port; The next part case of an annular, described next part case is provided with water inlet; The many heat exchanger tubes of fixedlying connected respectively and communicating with described upper collecting chamber and described next part case; Be fixedly connected on the heat conduction baffle plate between two adjacent heat exchanger tubes.
Wherein, in the described high-temperature material passage that surrounds by the one-level heat-exchanger rig, be provided with the secondary heat-exchanger rig.
Wherein, the delivery port of described one-level heat-exchanger rig is communicated with the water inlet of described secondary heat-exchanger rig, and the water inlet of the delivery port of perhaps described one-level heat-exchanger rig and described secondary heat-exchanger rig forms independent path respectively.
After having adopted technique scheme, the invention has the beneficial effects as follows: because described one-level heat-exchanger rig comprises the upper collecting chamber of an annular, described upper collecting chamber is provided with delivery port; The next part case of an annular, described next part case is provided with water inlet; The many heat exchanger tubes of fixedlying connected respectively and communicating with described upper collecting chamber and described next part case; Be fixedly connected on the heat conduction baffle plate between two adjacent heat exchanger tubes, compare with the chuck type water jacket of double-layer steel plate structure, on the one hand, integral rigidity is good, at high temperature is not easy to produce distortion, and the junction is not easy to crack.On the other hand, heat exchange area is big, good effect of heat exchange.Under the situation of same specification, weight saving 30% greatly reduces material consumption.
Owing in the described high-temperature material passage that surrounds by the one-level heat-exchanger rig, be provided with the secondary heat-exchanger rig, on the one hand the temperature of charge of high-temperature material passage core is effectively reduced, the uniformity of temperature of charge is greatly improved in whole passage, and drop temperature is also reduced to about 150 ℃ by original 300 ℃, reduction along with temperature of charge, prolong the service life of blow-off valve, reduced the fault rate of discharge system.On the other hand, can reclaim heat more, really accomplish energy-saving and emission-reduction by the secondary heat-exchanger rig.
Because the delivery port of described one-level heat-exchanger rig is communicated with the water inlet of described secondary heat-exchanger rig, therefore this cooling jacket has the function of water being carried out the two-stage heating, the one-level heating can be heated to water more than 80 ℃, reaches the effect except that most of dissolved oxygen in anhydrating.Water through the one-level preheating enters the secondary heating again, heats water to and the corresponding saturation water of boiler working pressure, can improve the steam production 15～20% of boiler.When the water inlet of the delivery port of one-level heat-exchanger rig and described secondary heat-exchanger rig formed independent path respectively, one-level heat-exchanger rig and secondary heat-exchanger rig can feed the lower cooling water of temperature respectively, and like this, the cooling effect of material can be more better.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the front view of first embodiment of the invention;
Fig. 2 is the longitudinal sectional view of Fig. 1;
Fig. 3 is the longitudinal sectional view of second embodiment of the invention.
The specific embodiment
First embodiment:
As shown in Figure 1, a kind of cooling water jacket of petroleum coke can-type calcine furnace, it comprises the upper collecting chamber 2 of an annular, and described upper collecting chamber is provided with delivery port 21, and upper flange 1 is welded on the described upper collecting chamber 2, and upper flange 1 is used for being connected with the calcining furnace body.The next part case 5 that also comprises an annular, described next part case is provided with water inlet 51 and sewage draining exit (not shown), lower flange 6 by a cylindrical shell be welded as a whole with next part case 5 and be provided with the reinforcement gusset, lower flange 6 is used for being connected with blow-off valve, and it is to be connected with blow-off valve for the ease of lower flange 6 with the purpose of strengthening gusset that cylindrical shell is set.
Weld many heat exchanger tubes 3 respectively between described upper collecting chamber 2 and the described next part case 5, heat exchanger tube 3 communicates with upper collecting chamber 2 and next part case 5 respectively, constitutes cooling water cavity.Be welded with heat conduction baffle plate 4 between two adjacent heat exchanger tubes 3.The effect of heat conduction baffle plate 4 at first is the space between two adjacent heat exchanger tubes 3 of sealing, and secondly being increases heat-conducting area, increases heat conduction velocity.
Said structure has been formed one-level heat-exchanger rig of the present invention, and described one-level heat-exchanger rig has surrounded the high-temperature material passage.
As shown in Figure 2, in described high-temperature material passage, be provided with secondary heat-exchanger rig 7.Described secondary heat-exchanger rig 7 comprises snake bend 7b, and described snake bend 7b has a water inlet and a delivery port, the outside that the water inlet of described coiled pipe 7b and delivery port are fixedlyed connected and stretched out the high-temperature material passage with a heat conduction baffle plate respectively.Preferably water inlet is positioned at the below of delivery port.
For the heat that cooling jacket is reclaimed makes full use of, with the preheater of cooling jacket as heating boiler, the cooling water after just will being heated feeds heating boiler usually, thereby saves the consumption of boiler oil.In order to improve the utilization ratio of heat, the delivery port of described one-level heat-exchanger rig is communicated with described water inlet, and so, this cooling jacket just has the function of water being carried out the two-stage heating, the one-level heating can be heated to water more than 80 ℃, reaches the effect except that most of dissolved oxygen in anhydrating.Water through the one-level preheating enters the secondary heating again, heats water to and the corresponding saturation water of boiler working pressure, can improve the steam production 15～20% of boiler.Certainly, if list cools off angle from material, the water inlet of secondary heat-exchanger rig can not be communicated with the delivery port of one-level heat-exchanger rig yet, but forms independent path respectively, and like this, the cooling effect of material can be more better.
Second embodiment:
The structure of second embodiment and first embodiment is basic identical, its difference is the structure of secondary heat-exchanger rig 7, and as shown in Figure 3, it comprises upper lateral tube 7a1, lower transverse tubule 7a2, the many vertical tube 7a3 of fixedlying connected respectively and communicating with described upper lateral tube 7a1 and described lower transverse tubule 7a2; Described upper lateral tube 7a1 is provided with delivery port, and described lower transverse tubule 7a2 is provided with water inlet; The outside that the delivery port that is arranged at described upper lateral tube and the water inlet that is arranged at described lower transverse tubule are fixedlyed connected and stretched out the high-temperature material passage with a heat conduction baffle plate respectively.
The present invention is not limited to the above-mentioned specific embodiment, and an inventive point of the present invention is that its one-level heat-exchanger rig is welded into an integral body by upper collecting chamber, next part case, heat exchanger tube and heat conduction baffle plate, good rigidity, be not easy to produce thermal deformation, and heat exchange area is big, cooling heat transferring is effective.Another inventive point of the present invention is, be provided with the secondary heat-exchanger rig in the high-temperature material passage that surrounds by the one-level heat-exchanger rig, the temperature of charge of high-temperature material passage core is effectively reduced, the uniformity of temperature of charge is greatly improved in whole passage, and drop temperature is also reduced to about 150 ℃ by original 300 ℃, along with the reduction of temperature of charge, prolonged the service life of blow-off valve, reduced the fault rate of discharge system.
It is one that the present invention collects material cooling, heat conversion and UTILIZATION OF VESIDUAL HEAT IN, is widely used in the transformation of petroleum coke can-type calcine furnace, and to energy-saving and cost-reducing, energy-saving and emission-reduction are all significant.
Claims (4)
1. cooling water jacket of petroleum coke can-type calcine furnace comprises the one-level heat-exchanger rig that is used to surround the high-temperature material passage, it is characterized in that: described one-level heat-exchanger rig comprises
The upper collecting chamber of an annular (2), described upper collecting chamber are provided with delivery port (21);
The next part case (5) of an annular, described next part case is provided with water inlet (51);
The many heat exchanger tubes (3) of fixedlying connected respectively and communicating with described next part case (5) with described upper collecting chamber (2);
Be welded in the heat conduction baffle plate (4) between adjacent two heat exchanger tubes (3);
In the described high-temperature material passage that surrounds by the one-level heat-exchanger rig, be provided with secondary heat-exchanger rig (7);
Described secondary heat-exchanger rig (7) comprises snake bend (7b), described snake bend (7b) has a water inlet and a delivery port, the outside that the water inlet of described coiled pipe (7b) and delivery port are fixedlyed connected and stretched out the high-temperature material passage with a heat conduction baffle plate respectively.
2. cooling water jacket of petroleum coke can-type calcine furnace as claimed in claim 1, it is characterized in that: the delivery port of described one-level heat-exchanger rig is communicated with the water inlet of described secondary heat-exchanger rig, and the water inlet of the delivery port of perhaps described one-level heat-exchanger rig and described secondary heat-exchanger rig forms independent path respectively.
3. cooling water jacket of petroleum coke can-type calcine furnace comprises the one-level heat-exchanger rig that is used to surround the high-temperature material passage, it is characterized in that: described one-level heat-exchanger rig comprises
The upper collecting chamber of an annular (2), described upper collecting chamber are provided with delivery port (21);
The next part case (5) of an annular, described next part case is provided with water inlet (51);
The many heat exchanger tubes (3) of fixedlying connected respectively and communicating with described next part case (5) with described upper collecting chamber (2);
Be welded in the heat conduction baffle plate (4) between adjacent two heat exchanger tubes (3);
In the described high-temperature material passage that surrounds by the one-level heat-exchanger rig, be provided with secondary heat-exchanger rig (7);
Described secondary heat-exchanger rig (7) comprises upper lateral tube (7a1), lower transverse tubule (7a2), the many vertical tubes (7a3) of fixedlying connected respectively and communicating with described lower transverse tubule (7a2) with described upper lateral tube (7a1); Described upper lateral tube (7a1) is provided with delivery port, and described lower transverse tubule (7a2) is provided with water inlet; The outside that the delivery port that is arranged at described upper lateral tube and the water inlet that is arranged at described lower transverse tubule are fixedlyed connected and stretched out the high-temperature material passage with a heat conduction baffle plate respectively.
4. cooling water jacket of petroleum coke can-type calcine furnace as claimed in claim 3, it is characterized in that: the delivery port of described one-level heat-exchanger rig is communicated with the water inlet of described secondary heat-exchanger rig, and the water inlet of the delivery port of perhaps described one-level heat-exchanger rig and described secondary heat-exchanger rig forms independent path respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810139761XA CN101362951B (en) | 2008-09-04 | 2008-09-04 | Cooling water jacket of petroleum coke can-type calcine furnace |
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| CN200810139761XA CN101362951B (en) | 2008-09-04 | 2008-09-04 | Cooling water jacket of petroleum coke can-type calcine furnace |
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| CN101362951A CN101362951A (en) | 2009-02-11 |
| CN101362951B true CN101362951B (en) | 2011-10-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102976312A (en) * | 2012-12-25 | 2013-03-20 | 潍坊联兴炭素有限公司 | Heat exchanger structure capable of prolonging service life of calcined coke heat exchanger |
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| CN102445084B (en) * | 2010-10-09 | 2013-11-06 | 沈阳铝镁设计研究院有限公司 | Calcined coke cooling device for pot calcining furnace |
| CN102032798B (en) * | 2010-12-30 | 2012-08-22 | 王佐峰 | High-temperature material cooling and afterheat recycling system in calcinater |
| CN102288041B (en) * | 2011-07-05 | 2013-01-23 | 山东理工大学 | Discharging and cooling device for petroleum coke pot type calcining furnace |
| CN102997699B (en) * | 2012-12-25 | 2014-06-18 | 潍坊联兴新材料科技股份有限公司 | Coking waste-heat utilization vapor-water circulatory system after high-temperature calcining of a plurality of pot-type calcining furnaces |
| CN104006663B (en) * | 2014-06-12 | 2015-07-15 | 济南中海炭素有限公司 | Cooling device for materials after calcination of anthracite or petroleum coke |
| CN104236337B (en) * | 2014-09-29 | 2016-04-06 | 山东理工大学 | Blue charcoal waste heat utilization heat exchanger |
| CN104697371B (en) * | 2015-04-02 | 2016-07-27 | 山东理工大学 | A kind of large box type high-temperature material heat exchanger |
| CN113294966A (en) * | 2020-02-24 | 2021-08-24 | 侯瑜 | Cooling device for petrochemical production |
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Effective date of registration: 20200925 Address after: Building a, Binhai Digital Plaza, north of Haihua street and west of Dahai Road, Binhai Development Zone, Weifang City, Shandong Province Patentee after: SHANDONG HAO-ENERGY SERVICE Co.,Ltd. Address before: 262737 Shandong city of Weifang province Weifang Binhai Economic Development Zone in Weifang port chemical Carbon Co. Ltd. Patentee before: WEIFANG LIANXING CARBON Co.,Ltd. |