CN201136848Y

CN201136848Y - Powdered coke cooling jacket

Info

Publication number: CN201136848Y
Application number: CNU2007201381519U
Authority: CN
Inventors: 张玉林; 刘广礼; 王秀敏; 何小锴
Original assignee: Tangshan Iron and Steel Co Ltd
Current assignee: Hebei Iron and Steel Co Ltd
Priority date: 2007-12-04
Filing date: 2007-12-04
Publication date: 2008-10-22
Anticipated expiration: 2017-12-04

Abstract

The utility model relates to a coke powder cooling sleeve which can eliminate the thermal stress of the present equipment, avoid the inner leakage and the damage of the coke powder cooling sleeve, and prolong the service life of the equipment, and belongs to the technical field of the coking mechanical equipment. The coke powder cooling sleeve comprises an outer-layer water jacket, a coke powder layer, and an inner-layer water jacket, the inner-layer water jacket adopts an integral steel tube structure, the pipe wall of the water outlet pipe of the inner-layer water jacket is glidingly connected with the outer-layer water jacket and the coke powder layer, the outer part is sealed by adopting high temperature packing material. Because the slip connection structure is adopted among the inner-layer water jacket, the outer-layer water jacket and the coke powder layer, the hidden trouble of cracking because the coke powder cooling sleeve is fixed and welded under thermal stress is eliminated; a spherical inward concave sealing head is adopted to plug the top of the inner sleeve, thereby reducing the heating deformation of the top plate and the decline of the mechanical strength, providing the margin for the deformation of the water jacket, and avoiding the water jacket from being damaged. The coke powder cooling sleeve solves the problem of the inner leakage of the coke powder cooling sleeve generally existing in the coking industry, the service life of the coke powder cooling sleeve is enhanced, and the long period stable operation of the system is ensured.

Description

A kind of coke breeze cooling jacket

Technical field

The utility model relates to cork dry quenching disposable dust remover coke breeze cooling apparatus, belongs to the coking machinery apparatus field.

Technical background:

In coking equipment, coke breeze cooling jacket is the important auxiliary facility of dry quenching system, is installed on the disposable dust remover bottom, is connected with fork-shaped ash storehouse with disposable dust remover, mainly act as eliminating by the collected coke ashes of cork dry quenching disposable dust remover, and it is cooled off.

The ubiquitous problem of the coke breeze cooling jacket that present domestic dry coke quenching adopted is: aborning, the coke breeze cooling jacket adopts the mode of intermittently ash discharge to turn round, cooling temperature is reduced to about 200 ℃ by nearly 1000 ℃, because rapid suddenly cold and hot, cause frequent expanding with heat and contract with cold, connect the position at inside and outside cover and produce thermal stresses, because currently used coke breeze cooling jacket adopts full weldprocedure, adopt between each parts fixedly connected, weld seam weak part cracking easily under the thermal stresses effect; The inner sleeve top is flat-top and builds with pouring material that the expansion space is minimum, and stress is easily concentrated, and causes this position very easily to damage; Be provided with water-stop sheet in the middle of the inner sleeve, water inlet is directly by the top water inlet, discharged at last by the influent side water outlet side of flowing through through water-stop sheet, causes the difference of inner sleeve water-stop sheet both sides heat exchange mode, produces thermal stresses, also is the reason that causes water jacket to damage.The problems referred to above have influenced dry quenching system direct motion and running safety, have seriously restricted development of Dry Quenching Technology and application, and the technician is necessary these positions are redesigned.

Problem to be solved in the utility model provides a kind of thermal stresses that can eliminate present equipment, avoid the coke breeze cooling jacket that leakage loss in the coke breeze cooling jacket is bad, prolong equipment life.

The technical scheme that solves the problems of the technologies described above is:

A kind of coke breeze cooling jacket, it is made up of outer water jacket, coke breeze layer, internal layer water jacket, the rising pipe of internal layer water jacket and water inlet pipe all pass outer water jacket, coke breeze layer, its improvements are: the internal layer water jacket adopts whole steel-tube construction, the rising pipe tube wall of internal layer water jacket and outer water jacket, coke breeze layer are for being slidingly connected the packing seal of outside employing high temperature.

Above-mentioned coke breeze cooling jacket, spherical indent end socket is adopted in the top shutoff of internal layer water jacket, and the outside is equipped with refractory felt and fire-resistant pouring material successively.

Above-mentioned coke breeze cooling jacket, the water inlet pipe that the water inlet connects is deep into the bottom of internal layer water jacket.

Above-mentioned coke breeze cooling jacket, rising pipe adopts two oblique cut grafting slide constructions at the wearings plate of coke breeze layer, the high temperature resistant packing seal of the outside employing of rising pipe.

Adopt the coke breeze cooling jacket of this structure, internal layer water jacket and outer water jacket, coke breeze layer are sliding connection structure, have eliminated to be fixedly welded on rimose hidden danger under the thermal stresses; Spherical indent end socket is adopted in the top shutoff of interior cover, can reduce the decline that top board is subjected to thermal deformation and physical strength, and for the deformation of water jacket provides surplus, avoid the damage of water jacket; Water coolant and the complete countercurrent flow of coke powder were realized in the cover bottom in water-in skirt road was deep into, and strengthened the heat exchange effect, and each position heat exchange homogeneous of interior cover avoids producing thermal stresses.Adopt present technique, solve leakage problem in the ubiquitous coke breeze cooling jacket of dry coke quenching industry, improved the work-ing life of coke breeze cooling jacket, guaranteed system's long-period stable operation, effectively improve in the quench system safe reliability, reduced dry coke quenching technology running cost simultaneously.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Number in the figure is as follows: outer water jacket 1, coke breeze layer 2, internal layer water jacket 3, rising pipe 4, water-in 5, spherical indent end socket 6, wearings plate 7, sleeve pipe 8, water inlet pipe 9

Embodiment

The utility model is made up of outer water jacket 1, coke breeze layer 2, internal layer water jacket 3.The rising pipe 4 of internal layer water jacket 3 and water-in 5 all pass outer water jacket 1 and coke breeze layer 2.Outer water jacket 1, coke breeze layer 2 are sleeve pipes 8 with the junction end face of rising pipe 4, and the tube wall of this sleeve pipe 8 and rising pipe 4 is for being slidingly connected, and promptly the tube wall of rising pipe 4 can move forward and backward along the inwall of sleeve pipe 8.When internal layer water jacket 3 expanded by heating, its rising pipe 4 can outwards move like this, has avoided rising pipe 4 and outer water jacket 1, coke breeze layer 2 because of being fixedly welded on the rimose phenomenon to take place under the thermal stresses.Water-in 5 adopts two oblique cut grafting slide constructions at the wearings plate 7 of ash discharge layer, and high temperature resistant packing seal is used in the outside, can prevent the gas trains leakage.

Spherical indent end socket 6 is adopted in the top shutoff of internal layer water jacket 3, and the outside refractory felt of laying is built fire-resistant pouring material again.This measure can be avoided producing gas at internal layer water jacket 3 tops and retain, and guarantees the top board cooling performance, reduces the decline that top board is subjected to thermal deformation and physical strength; The spherical indent end socket 6 of rubber-like can provide surplus for the deformation of internal layer water jacket 3, avoids the damage of internal layer water jacket 3.Internal layer water jacket 3 is whole steel-tube construction, and 5 places are connected with water inlet pipe 9 at water-in, and water inlet pipe 9 is deep into the bottom of internal layer water jacket 3, realize water coolant and the complete countercurrent flow of coke powder, strengthen the heat exchange effect, internal layer water jacket 3 each position heat exchange homogeneous avoid producing thermal stresses.

The utility model has following characteristics:

1, adopts sliding connection structure, eliminate because the thermal stress that structure problem causes.

2, each position heat exchange efficiency reaches unanimity, and good effect of heat exchange is eliminated because the heat that the heat exchange inequality causes should Power.

3, water journey top does not have air gap, eliminates because thermogenetic thermal stress is crossed at the air gap position.

4, provide sufficient surplus for expanding with heat and contract with cold of equipment.

The utility model has solved leakage problem in the ubiquitous coke breeze cooling jacket of dry coke quenching industry, improves powder Guaranteed system's long-period stable operation the service life of burnt cooling collar, Effective Raise dry quenching system peace Full reliability has reduced dry coke quenching process operation cost simultaneously.

Claims

1. coke breeze cooling jacket, it is made up of outer water jacket [1], coke breeze layer [2], internal layer water jacket [3], the rising pipe [4] of internal layer water jacket [3] and water-in [5] all pass outer water jacket [1], coke breeze layer [2], it is characterized in that: internal layer water jacket [3] adopts whole steel-tube construction, rising pipe [4] tube wall of internal layer water jacket [3] and outer water jacket [1], coke breeze layer [2] are for being slidingly connected the packing seal of outside employing high temperature.

2. coke breeze cooling jacket according to claim 1 is characterized in that: spherical indent end socket [6] is adopted in the top shutoff of internal layer water jacket [3], and the outside is equipped with refractory felt and fire-resistant pouring material successively.

3. coke breeze cooling jacket according to claim 2 is characterized in that: the water inlet pipe [9] that water-in [5] is located to connect is deep into the bottom of internal layer water jacket [3].

4. coke breeze cooling jacket according to claim 3 is characterized in that: rising pipe [4] adopts two oblique cut grafting slide constructions at the wearings plate [7] of coke breeze layer [2], the high temperature resistant packing seal of the outside employing of rising pipe [4].