CN108906349A - Efficient low-resistance one-in-and-two-out formula rotoclone collector - Google Patents

Abstract

The invention proposes a kind of efficient low-resistance one-in-and-two-out formula rotoclone collectors, including：Center impeller, center impeller include symmetrically arranged upper impeller and lower impeller；Shell, shell have the air inlet for the upper end that shell is arranged in and the discharge port of the bottom of shell are arranged in, and the inside of shell is arranged in center impeller；Upcast ventilation pipe, the inside of shell is arranged in upcast ventilation pipe, and one end of upcast ventilation pipe forms the first air outlet towards the top that upper impeller, the other end pass through shell；And lower air conduit, the inside of shell is arranged in lower air conduit, and one end of lower air conduit forms the second air outlet towards the side wall that lower impeller, the other end pass through shell.Efficient low-resistance one-in-and-two-out formula rotoclone collector disclosed by the invention can effectively separate the solid in Dual-Phrase Distribution of Gas olid, achieve the effect that collection material, while equipment resistance is small, effectively reduce the resistance of system, and then reduce system energy consumption.

Description

High-efficiency and low-resistance one-inlet and two-outlet cyclone dust collector

technical field

The invention relates to the field of gas dust removal, and more specifically, to a high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector.

Background technique

With the rapid development of industrial production, cyclone dust collector, as an effective dust collection equipment, is more and more widely used. The application of the cyclone dust collector greatly reduces the load of the ordinary bag dust collector, reduces the filter area of the bag dust collector, and reduces the spatial structure size of the bag dust collector, thereby reducing the floor area and equipment investment cost. With the wide application of cyclone dust collectors, in order to meet the goals of high dust collection efficiency and low self-resistance of cyclone dust collectors, the structural forms of cyclone dust collectors currently used are also different, but none of them are satisfactory. Solve the problem of meeting two important indicators of a cyclone dust collector at the same time, and with the enlargement of the industrial scale, the dust-containing gas that needs to be processed in the production process is also increasing. For large-scale industrial production, it is necessary to process a large number of Dust gas, the diameter and number of cyclone dust collectors used are increasing.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention proposes a high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector, including:

A casing, the casing has an air inlet arranged at the upper end of the casing and a discharge outlet arranged at the bottom of the casing;

The central impeller, the central impeller is arranged inside the casing, and the central impeller includes symmetrically arranged upper impellers and lower impellers; the upper air pipe, the upper air pipe is arranged inside the casing, and one end of the upper air pipe faces the upper impeller, and the other end A first air outlet is formed through the top of the casing to guide the guide airflow generated by the upper impeller to the first air outlet; and

The downwind pipe, the downwind pipe is arranged inside the casing, and one end of the downwind pipe faces the lower impeller, and the other end passes through the side wall of the casing to form a second air outlet, so as to guide the guided airflow generated by the lower impeller to the second air outlet. Two outlets.

In one embodiment, the tangential direction of the blades of each of the upper impeller and the lower impeller coincides with the direction of the airflow entering the casing through the air inlet.

In one embodiment, each of the upper impeller and the lower impeller has an inlet wind velocity between 22.0m/s-27.0m/s.

In one embodiment, a wind-locking cone is further included, the wind-locking cone is arranged between the lower impeller and the down-air pipe, and the air-locking cone opens toward the down-air pipe.

In one embodiment, the housing includes:

The upper volute, the air inlet is set on the side of the upper volute, and the upper air pipe is set inside the upper volute;

a middle casing, the middle casing is connected to the lower end of the upper volute, and the central impeller is arranged inside the middle casing; and

The lower casing, the lower casing has a tapered shape, and the end of the lower casing with a larger cross-sectional area is connected to the lower end of the middle casing, and the end with a smaller cross-sectional area is the discharge port.

In one embodiment, the upper volute has a cylindrical structure with a cross-sectional area larger than that of the middle casing, and the inside of the upper volute forms a volute structure, and the lower part of the upper volute has a curved surface structure to form a shape consistent with the middle casing. Matching lower end face.

In one embodiment, the middle housing has a cylindrical structure with two ends open.

In one embodiment, the casing further includes a support skirt, which is arranged outside the middle casing to support the high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector.

In one embodiment, the support skirt is made of steel.

In one embodiment, a maintenance hole is provided on the side wall of the middle housing.

It can be seen from the above description that the high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector disclosed by the present invention meets the requirements of the cyclone dust collector with a small diameter through the unique structural form, design concept and smooth analysis and optimization of single air inlet and double outlet air. , a variety of technical indicators with large air volume, high dust collection efficiency, and low resistance can reduce the number of cyclone dust collectors used in a specific system, and can effectively reduce the impact on subsequent process equipment (such as bag dust collectors and bag collectors) Dust collector fan) load.

Description of drawings

Fig. 1 is the outline drawing of a high-efficiency low-resistance one-inlet-two-outlet cyclone dust collector according to an exemplary embodiment of the present invention; and

Fig. 2 is a perspective view of a high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector according to an exemplary embodiment of the present invention.

Detailed ways

The high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector proposed by the present invention will be further described below in conjunction with the accompanying drawings.

Referring to Fig. 1, the high-efficiency low-resistance one-inlet-two-outlet cyclone dust collector proposed by the present invention includes a central impeller 4, a housing, an upper air duct 5 and a lower air duct 6, wherein the central impeller 4, the upper air duct 5 and the lower air duct The tubes 6 are all arranged inside the housing.

The central impeller 4 includes an upper impeller 41 and a lower impeller 42 arranged symmetrically. The upper impeller 41 and the lower impeller 42 play the role of guiding the airflow entering the housing, and because the upper impeller 41 and the lower impeller 42 are symmetrically arranged, the airflow is guided to two opposite directions respectively, that is, a part of the airflow is in the upper impeller. 41 to rotate and flow toward the upper part of the casing, and the other part of the airflow to rotate and flow toward the lower part of the casing under the action of the lower impeller 42, so that the airflow discharged from one air outlet in the traditional cyclone dust collector is separated into two parts from The two air outlets are used to increase the air volume of the cyclone dust collector, thereby improving the dust collection efficiency.

The casing has an air inlet 11 arranged at the upper end of the casing and a discharge outlet 31 arranged at the bottom of the casing, and the central impeller 4 is arranged in the casing. The dust-laden airflow enters the casing from the air inlet 11 at a certain angle and rotates in the casing, and the dust in it is collected on the inner wall of the casing under the action of centrifugal force, and falls due to the action of gravity, and passes through the discharge port at the bottom of the casing 31 discharge. The airflow separated from the dust enters the central impeller 4 and flows towards the upper and lower parts of the housing under the guide action of the upper impeller 41 and the lower impeller 42 respectively.

Both the upper air duct 5 and the lower air duct 6 are arranged in the housing, and are respectively used to guide the separated airflow out of the housing under the action of the upper impeller 41 and the lower impeller 42 . The upper air duct 5 is arranged on the top of the housing, one end of which faces the upper impeller 41, and the other end passes through the top of the housing to form a first air outlet 51, so as to guide the guide airflow produced by the upper impeller 41 to the first air outlet 51 and Discharge, to avoid the influence of the air flow on the centrifugal effect of the dust-laden gas newly entering the housing. The downwind pipe 6 is arranged at the bottom of the housing, one end of which faces the lower impeller 42, and the other end passes through the lower part of the housing to form a second air outlet 61, so as to guide the guided airflow generated by the lower impeller 42 to the second air outlet 61 and Discharge, to avoid the adverse effect of airflow on the dust particles collected on the inner wall of the housing.

It can be known from the above description that in the high-efficiency low-resistance one-into-two-out cyclone dust collector disclosed by the present invention, the central impeller 4 is set to include a symmetrically arranged upper impeller 41 and a lower impeller 42, which realizes the The airflow is divided into airflow branches flowing in two directions, up and down, so that the cyclone dust collector can output air at the same time up and down, and the air volume is twice or more than that of the traditional cyclone dust collector, that is, in the same dust collector Under normal circumstances, in order to achieve the same dust collection efficiency, the cross-sectional area of the shell of the high-efficiency low-resistance one-inlet and two-outlet cyclone dust collector disclosed by the present invention can be reduced by 20% compared with the cross-sectional area of the shell of the traditional cyclone dust collector % or more, or the number of cyclone dust collectors used to achieve the same air output is 50% less than traditional cyclone dust collectors. Therefore, the high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector disclosed in the present invention has the advantages of high dust collection efficiency and small volume, and can save production costs.

In one embodiment of the present invention, the tangential direction of the blades of each of the upper impeller 41 and the lower impeller 42 is consistent with the direction of the airflow entering the casing through the air inlet 11 . When the diameters of the upper impeller 41 and the lower impeller 42 are determined, the number and angle of the blades determine the area of the single air inlet formed between two adjacent blades. As the number of blades increases, the area of the single air inlet arranged around the center will decrease; similarly, as the blade angle increases, the area of the single air inlet will also decrease. When the air volume handled by the central impeller 4 is determined, the area of the total air inlet formed by all single air inlets determines the speed of the air intake air flow of the central impeller 4, that is, the smaller the total air inlet area, the faster the air inlet velocity. higher and vice versa. In one embodiment of the present invention, the airflow velocity of the impeller air inlet of the central air inlet impeller is in the range of 22.0m/s-27.0m/s. However, those skilled in the art can still design and adjust the number, size and angle of blades according to specific requirements such as air volume and air inlet speed, so as to adjust the airflow speed of the air inlet 11 of the central impeller 4 .

Continuing to refer to FIG. 1 , the high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector also includes an air-locking cone 21 . The wind-locking cone 21 is arranged between the lower impeller 42 and the lower air pipe 6, and the air-locking cone 21 opens toward the lower air pipe 6, thereby effectively preventing the airflow guided by the lower impeller 42 from entering the lower housing 3, so as to isolate the airflow from The dust particles trapped on the inner wall of the housing have adverse effects of raising dust.

Referring to FIG. 1 , the housing includes an upper volute 1 , a middle housing 2 and a lower housing 3 .

The air inlet 11 is arranged on the side of the upper volute 1 , and the upper air duct 5 is arranged inside the upper volute 1 . In this way, the dust-laden airflow enters the upper volute 1 from the air inlet 11 at a certain angle, rotates and centrifuges in the upper volute 1, so that the dust in the dust-laden airflow is centrifuged and collected on the inner wall of the housing; The airflow guided by 41 is sent to the first air outlet 51 through the upper air duct 5 . Preferably, the upper volute 1 has a cylindrical structure with a cross-sectional area larger than that of the middle casing 2, and a volute structure is formed inside the upper volute 1 so that the dust-laden airflow entering the upper volute 1 flows inside the casing. form a swirl. It should be noted that the angle at which the dust-laden air enters the upper volute 1 from the air inlet 11 is adapted to the design of the volute structure. In addition, the lower part of the upper volute 1 has a curved surface structure 13 to form a lower end surface that is compatible with the middle casing 2, and reduce the resistance inside the volute to achieve a better flow guiding effect.

The middle casing 2 is connected to the lower end of the upper volute 1, and the central impeller 4 is arranged inside the middle casing. In one embodiment, the middle housing 2 has a cylindrical structure with both ends open, so as to adapt to the flow direction of airflow and dust particles, reduce resistance, and achieve better flow guiding effect.

The lower casing 3 has a conical shape, and the larger end of the cross-sectional area of the lower casing 3 is connected to the lower end of the middle casing 2, and the smaller end of the cross-sectional area is the discharge port 31, so that the material collected in the lower casing The dust particles on the inner wall of the body 3 are gathered toward the discharge port 31 and discharged. The lower air duct 6 passes through the side of the lower casing 3 and protrudes to form a second air outlet 61 , so that the airflow guided by the lower impeller 42 is discharged from the second air outlet 61 through the lower air duct 6 .

Referring to FIG. 1 , the housing also includes a support skirt 7 . Since the high-efficiency and low-resistance one-input-two-outlet cyclone dust collector has a relatively large weight and vibration occurs during the working process, a support skirt 7 is provided outside the middle shell 2 to support the high-efficiency low-resistance one-inlet two-outlet cyclone dust collector. The cyclone dust collector plays a good supporting role. In one embodiment, the support skirt 7 is made of steel. However, those skilled in the art should understand that the supporting skirt 7 can also be made of other materials with higher strength.

Furthermore, a maintenance hole 22 is provided on the side wall of the middle housing 2 for staff to perform regular inspection and maintenance on the high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector.

The working process of the high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector disclosed by the present invention will be described below with reference to FIG. 1 . Under the action of the blower or other equipment, the dust-laden airflow enters the upper volute 1 tangentially from the air inlet 11, and forms a swirling flow through the volute structure, so that the dust particles in the dust-laden airflow are trapped in the shell under the action of centrifugal force. On the inner wall; the separated air flow enters the central impeller 4, and is divided into two parts under the action of the upper impeller 41 and the lower impeller 42, one part is discharged from the first air outlet through the upper air pipe 5, and the other part is discharged from the second air outlet through the lower air pipe 6. The tuyere is discharged; the trapped dust particles are discharged from the discharge port 31 under the action of gravity.

While exemplary embodiments of the invention have been described, it will be apparent to those skilled in the art that changes may be made without departing from the spirit and principles of the invention, the scope of which is defined in the claims and their equivalents .

Claims (10)

1. A high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector, including: a casing, the casing has an air inlet arranged at the upper end of the casing and a discharge outlet arranged at the bottom of the casing; A central impeller, the central impeller is arranged inside the housing, the central impeller includes symmetrically arranged upper and lower impeller air ducts, the upper air duct is arranged inside the housing, and the One end of the upper air duct faces the upper impeller, and the other end passes through the top of the casing to form a first air outlet, so as to guide the guide airflow generated by the upper impeller to the first air outlet; and A downwind pipe, the downwind pipe is arranged inside the casing, and one end of the downwind pipe faces the lower impeller, and the other end passes through the side wall of the casing to form a second air outlet, so that The guide airflow generated by the lower impeller is guided to the second air outlet. 2. The high-efficiency, low-resistance one-inlet-two-outlet cyclone dust collector according to claim 1, wherein the tangential direction of the blades of each of the upper impeller and the lower impeller is the same as that entering through the air inlet. The directions of the airflows of the housings are consistent. 3. The high-efficiency, low-resistance one-inlet-two-outlet cyclone dust collector according to claim 1, wherein the air inlet velocity of each of the upper impeller and the lower impeller is between 22.0m/s-27.0m/s between s. 4. The high-efficiency and low-resistance one-inlet-two-outlet cyclone dust collector according to claim 1, further comprising an air-locking cone, the air-locking cone is arranged between the lower impeller and the lower air pipe, And the wind-locking cone opens toward the downwind pipe. 5. The high-efficiency and low-resistance one-into-two-out cyclone dust collector according to claim 1, wherein the housing comprises: The upper volute, the air inlet is arranged on the side of the upper volute, and the upper air duct is arranged inside the upper volute; a middle case connected to the lower end of the upper volute, and the center impeller is disposed inside the middle case; and A lower shell, the lower shell has a tapered shape, and the end of the lower shell with a larger cross-sectional area is connected to the lower end of the middle shell, and the end with a smaller cross-sectional area is the outlet feed port. 6. The high-efficiency, low-resistance one-into-two-out cyclone dust collector according to claim 5, wherein the upper volute has a cylindrical structure with a cross-sectional area greater than that of the middle housing, and the A volute structure is formed inside the upper volute, and the lower part of the upper volute has a curved surface structure to form a lower end surface matched with the middle casing. 7. The high-efficiency and low-resistance one-inlet-two-outlet cyclone dust collector according to claim 5, wherein the middle shell has a cylindrical structure with two ends open. 8. The high-efficiency, low-resistance one-into-two-out cyclone dust collector according to claim 5, wherein the housing further comprises a supporting skirt, and the supporting skirt is arranged on the outer side of the middle housing, so as to Support the high-efficiency and low-resistance one-inlet and two-outlet cyclone dust collector. 9. The high-efficiency, low-resistance one-inlet and two-outlet cyclone dust collector according to claim 8, wherein the support skirt is made of steel. 10. The high-efficiency and low-resistance one-inlet-two-outlet cyclone dust collector according to claim 5, wherein a maintenance hole is provided on the side wall of the middle shell.