CN2496553Y

CN2496553Y - Butterfly type cyclone separator

Info

Publication number: CN2496553Y
Application number: CN 01248338
Authority: CN
Inventors: 张卫华; 钱成伟; 阎立辉; 燕辉; 李丽; 刘同喜
Original assignee: QINGYING PETROCHEMICAL EQUIPMENT PLANT YINGKOU
Current assignee: QINGYING PETROCHEMICAL EQUIPMENT PLANT YINGKOU
Priority date: 2001-06-22
Filing date: 2001-06-22
Publication date: 2002-06-26
Anticipated expiration: 2011-06-22

Abstract

The utility model provides a butterfly cyclone separator, and the butterfly cyclone separator comprises a barrel body and a taper profile. A butterfly inlet opening formed by an involute model double arc plate is arranged on the side wall of the upper part of the barrel body; an air outlet pipe formed by a steady-flow drag reducer and a rectification wing is inserted into the upper part of the barrel body, the rectification wing is formed by a plurality of vanes, and the separation between two vanes is a bevel shearing relationship to the circle where the vanes are arranged, a Venturi dust exhauster is arranged at the lower end of the taper profile. The utility model can solve the problem that the short circuit flow formed by the fine grain being carried caused by a strong axial centripetal flow at the end of the exhaust tube and the coarse grain bouncing out from the barrel body and the holding of the lower pressure drop, and therefore, the separation and dust exhaust efficiency of the cyclone separator is efficiently improved.

Description

The butterfly cyclone separator

The utility model relates to a kind of cyclone separator that is used for gas solid separation.

At present, have only a vertical cut formula or scroll casing type tangential entry on the cylindrical shell of cyclone separator commonly used now, the effect that the cyclone separator of this structure separates the gas-solid body is not fine, mainly there is following problem: 1, in order to guarantee efficiency of dust collection, the opening of exhaust pipe lower part can not be too big, but this has caused the pressure drop of whole cyclone separator too big, and existing air-introduced machine is difficult to provide this pressure drop, if but the exhaust pipe lower part opening is too big, udst separation efficient can not be satisfied the demand; 2, because the radial centripetal air-flow of blast pipe arrival end is very strong, enter in the purifying gas flow, form the short circuit back-mixing, make cyclone separator separate the decrease in efficiency of fine particle thereby easily carry dust secretly; 3, when particle is thicker, bounce can appear again, also can be carried secretly effusion from blast pipe, reduce udst separation efficient.

The purpose of this utility model provides a kind of novel butterfly cyclone separator that can effectively overcome the problems referred to above generation, its scientific structure, udst separation efficient height.

The purpose of this utility model is achieved in that it comprises cylindrical shell and cone two parts, is characterized in that: the cylindrical shell upper portion side wall is provided with the butterfly inlet that is made of the two arc plates of involute-type; Cylindrical shell top is inserted with by current stabilization and falls the blast pipe that resistance device and rectification wing constitute, and the rectification wing is made of blade, and relative blade place, the interval between blade circumference is the relation of cutting sth. askew; The cone lower end is provided with the venturi dust exhaustor.

Above-mentioned butterfly inlet, the base radius of its arc plate involute is littler than the base radius of outer arcuate plate involute, and the rear of the inlet that constitutes at the arc plate of the inlet that constitutes of outer arcuate plate, and both form an angle at junction;

Above-mentioned rectification wing is made of the straight or spiral blade that surrounds taper, and the space is arranged between the blade;

Above-mentioned venturi dust exhaustor is installed on the place, dust mouth of cone bottom, its outer current stabilization balance blade that is equipped with.

During the utility model work, the base radius of the arc plate involute of butterfly inlet is littler than the base radius of outer arcuate plate involute, and the inlet that the outer arcuate plate constitutes is at the rear of the inlet of arc plate formation, both have angle at junction, thereby the dust in the incident air-flow is played outside inspissation; When violent radial centripetal air motion during to discharge pipe rectification wing, because the direction in the space of rectification wing is opposite with the direction of rotation of air-flow, thereby make the particle of carrying secretly in the air-flow be rebuffed and rebound, but clean gas still can enter outside the central gas stream discharge pipe by the space swimmingly, has increased the treating capacity of this cyclone separator thus; The venturi dust exhaustor that install at the place, dust mouth of cone bottom has individual jet action to the air-flow that has particle that flows out from the cone dust-exhausting port, the current stabilization balance blade that it is outer, air-flow through the venturi dust exhaustor is played the line effect, thereby the distance that air-flow is returned and form central gas stream increases greatly, the purified gas flow of raising center stream greatly, further the fine grained that reduces in the ash bucket is returned the quantity that central gas stream is entrained with blast pipe, improves gas solid separation efficient.In sum, the utility model not only can solve fine grained that the terminal strong radial centripetal stream of blast pipe causes by the short-circuit flow of carrying secretly and forming, can eliminate cylindrical shell coarse granule spring again and overflow and keep, thereby improve the separation efficiency of dust collection of cyclone separator effectively than low pressure degradation problem.In addition, butterfly of the present utility model inlet has increased the inlet flow area of separator, and its import department's place circle diameter is greatly reduced, thereby can be implemented in than under the low pressure drop, with the cyclone separator of small size more treating capacity is significantly improved.

Below in conjunction with accompanying drawing in detail particular content of the present utility model is described in detail.

Fig. 1, be structural representation of the present utility model

Fig. 2, be that the A-A of Fig. 1 is to cutaway view.

Fig. 3 a is a kind of structural representation of the utility model blast pipe rectification wing part.

Fig. 3 b is that the B-B of Fig. 3 a is to cutaway view.

Fig. 4 a is the another kind of structural representation of the utility model blast pipe rectification wing part.

Fig. 4 b is that the C-C of Fig. 4 a is to cutaway view.

Fig. 5 a is that resistance device part-structure schematic diagram falls in the utility model blast pipe current stabilization.

Fig. 5 b is that the D-D of Fig. 5 a is to cutaway view.

Fig. 6 a is the utility model venturi dust exhaustor schematic diagram.

Fig. 6 b is that the E-E of Fig. 6 a is to cutaway view.

As shown in the figure, the utility model comprises cylindrical shell 5 and cone 6 two parts, cylindrical shell 5 upper portion side wall are provided with the butterfly inlet 3 that is made of the two

arc plates

9,10 of involute-type, it is along distributing symmetrically on separator cylindrical shell 5 circumference, inboard drainage guided plate outwards is by cylindrical shell 5 gradually opens form for curvature, and the benchmark radius of the inboard involute of the benchmark radius ratio of the outside involute of the arc 10 in the outside is big, and opening is at the rear of the opening of inboard arc 9 formation, and make two openings have certain angle α, make in the gas solid particle wall that concentrates in incident direction; Cylindrical shell 5 tops are inserted with by current stabilization and fall the blast pipe 1 that resistance device 2 and rectification wing 4 constitute.Rectification wing 4 can adopt following two kinds of structures: Fig. 3 a, b are depicted as at cone osculum end and have angled with circumference as shown angular cut, form along the equally distributed blade 11 of circumference from face, and adjacent blades 11 is radially overlapped each other, an and spaced apart gap, Fig. 4 a, b are depicted as the part spirality that adopts stator formula reducing design, two adjacent blades 12 are radially overlapped each other, and a spaced apart gap; Fig. 5 a, b are depicted as the current stabilization that is made of a plurality of blades that is equipped with blast pipe 1 upper end and fall resistance device 2.Fig. 6 a, b are the venturi dust exhaustor structural representation at the place, dust mouth of cone bottom, and 7 pairs of air-flows that have particle that flow out from the cone dust-exhausting port of this venturi dust exhaustor have individual jet action, the venturi dust exhaustor 7 outer current stabilization balance blades 8 that are equipped with.

Claims

1, a kind of butterfly cyclone separator, it comprises cylindrical shell and cone two parts, it is characterized in that: the cylindrical shell upper portion side wall is provided with the butterfly inlet that is made of the two arc plates of involute-type; Cylindrical shell top is inserted with by current stabilization and falls the blast pipe that resistance device and rectification wing constitute, and the rectification wing is made of blade, and relative blade place, the interval between blade circumference is the relation of cutting sth. askew; The cone lower end is provided with the venturi dust exhaustor.

2, butterfly cyclone separator as claimed in claim 1, it is characterized in that: the butterfly inlet, the base radius of its arc plate involute is littler than the base radius of outer arcuate plate involute, and the inlet that the outer arcuate plate constitutes is at the rear of the inlet of arc plate formation, and both form an angle at junction.

3, butterfly cyclone separator as claimed in claim 1 is characterized in that: the rectification wing is made of the straight or spiral blade that surrounds taper, and the space is arranged between the blade.

4, butterfly cyclone separator as claimed in claim 1 is characterized in that: the venturi dust exhaustor is installed on the place, dust mouth of cone bottom, its outer current stabilization balance blade that is equipped with.