CN105537011A - Horizontal type circulation dust remover with guide cylinder - Google Patents

Abstract

The invention relates to a horizontal circulating dust collector with a guide tube, which consists of a horizontally arranged cylinder, a guide tube coaxial with the cylinder, a volute-type intake pipe, two sealing end covers, two An exhaust pipe, two dust pipes and two ash discharge pipes. The guide cylinder is a cylinder, which is fixed on the two dust separation pipes by the support device. The relationship between the diameter D ₀ of the guide cylinder and the diameter D of the cylinder is D ₀ =(0.5-0.65)*D, and the guide tube The relationship between the cylinder length L ₀ and the cylinder length L is L ₀ =(0.35-0.6)*L. The two dust-separating pipes are formed by extending inwards from the exhaust pipe, and are symmetrically arranged left and right. Due to the addition of a guide tube inside the cylinder, the present invention effectively prevents some dust particles at the inlet pipe of the ordinary horizontal circulation dust collector from entering the central airflow and being discharged with the clean gas under the action of airflow force, etc. It is easy to form a short-circuit flow between the nozzle and the dust separation nozzle, which effectively improves the dust removal efficiency and can be widely used in the purification treatment of various dust-containing gases.

Description

A horizontal circulating dust collector with a guide cylinder

technical field

The invention belongs to the technical field of environmental protection dust removal equipment, in particular to a horizontal circulation dust collector with a guide cylinder.

Background technique

In contemporary society, with the advancement of science and technology and the enhancement of energy conservation and environmental protection awareness, the application range of dust collectors is becoming wider and wider. The traditional circulating cyclone dust collector has a vertical structure, and the dust-laden gas enters from the inlet on the upper part of the dust collector, and rotates along the inner wall of the dust collector to form an external swirling flow that rotates downward. The dust particles are on the outside of the swirling flow under the action of centrifugal force, and are discharged from the ash discharge port downward along the cone. The purified gas forms a rising internal swirl in the dust collector and is discharged through the exhaust pipe. Due to the large helix angle of the airflow, it is easy to have problems such as eddy current and airflow tail. The fluid flow path is long and the velocity gradient is large, resulting in large pressure drop, high energy consumption, and low dust removal efficiency. The authorized announcement number is: CN204656170U's "A Horizontal Circulation Dust Collector" patent, by adopting a horizontal double-row (that is, double exhaust port and double ash port) structure, the processing capacity of dusty gas is effectively improved, and the dust-containing gas is overcome. The shortcomings of the traditional circulating cyclone dust collector are too long, the pressure drop is too large, and the energy consumption is too high. However, this ordinary horizontal circulation type dust collector is not easy to form a stable circulation because the air inlet pipe is in the middle and upper part of the cylinder, and the wind speed at the mouth of the air inlet pipe is relatively high, and some dust particles at the air inlet pipe will be affected by the drag force of the airflow, etc. Under the influence of factors, it enters the central airflow and is discharged with the clean gas, thus affecting the dust removal efficiency.

Contents of the invention

The object of the present invention is to overcome the above-mentioned defects of the dust collector, and propose a more efficient horizontal circulation dust collector with a guide tube. The invention effectively prevents some dust particles at the air intake pipe from entering the central airflow under the action of airflow drag force and other factors and is discharged with the clean gas, which affects the dust removal efficiency; it solves the problem that the dusty gas swirl and the clean gas swirl are easily generated at the junction The small vortex affects the dust removal efficiency, which effectively improves the dust removal efficiency.

The technical solution of the present invention is: a horizontal circulating dust collector with a guide tube, including a cylinder body, a guide tube, an air inlet pipe, a dust separation pipe, an ash discharge pipe, a support device and a support, and the cylinder body is horizontal Arrangement, the dust separation pipe is arranged horizontally in the cylinder body, the dust separation pipe is provided with an exhaust pipe, the guide tube is coaxial with the cylinder body and fixed together by the support device, the air intake pipe is located in the middle and upper part of the cylinder body, Both ends of the cylinder body are sealed with sealing end caps, and the two exhaust pipes are coaxial and symmetrically installed on the sealing end caps with the cylinder body, and the two ash discharge pipes are respectively located at the two ends of the cylinder body. end, and tangentially connected with the cylinder wall along the vertical direction, the cross-section of the ash discharge pipe is a flat and long rectangle, which solves the problem of secondary hoisting of the dust at the ash outlet of the traditional cyclone dust collector, and improves to a certain extent dust removal efficiency.

The working principle of the invention is as follows: the dust-laden gas enters the annular gap formed by the inner wall of the cylinder and the outer wall of the guide tube at a high speed through the intake pipe to form a stable circulation. Under the action of wind pressure, it moves spirally to both ends along the annular gap, forming two approximately symmetrical external swirling flows. The dust particles are on the outside of the swirling flow under the action of centrifugal force. When they move to the sealed end caps at both ends, the entrained part of the gas is discharged from the ash discharge pipes at both ends; the lighter clean gas is on the inner side of the swirling flow. When the sealing end caps at both ends are blocked by the sealing end caps, they flow in the reverse direction in the form of a small swirl, and are driven by the pressure difference to flow to the center of the cylinder body, forming two inner streams with the same swirl direction as the outer swirl. The swirling flow is finally discharged from the exhaust pipe through the dust separation pipe.

The beneficial effects of the present invention are:

The added guide tube of the present invention makes the dust-containing gas move along the annular gap between the cylinder body and the guide tube, which is conducive to the formation of a stable circulation; effectively prevents the airflow drag of some dust particles at the intake pipe and other factors Under the action of the central airflow and discharged with the clean gas, it affects the dust removal efficiency; it solves the problem that the dust-laden gas swirl and the clean gas swirl are prone to generate small eddies at the junction and affects the dust removal efficiency, and effectively improves the dust removal efficiency.

Description of drawings:

Fig. 1 is the front full sectional view of structural representation of the present invention;

Fig. 2 is the left side view of structural representation of the present invention;

Fig. 3 is a partially enlarged schematic diagram of the structure of the guide tube;

Fig. 4 is an A-direction view of a partially enlarged schematic diagram of the structure of the guide tube;

Fig. 5 is the basic principle diagram of the work of the present invention.

Among them: 1. Cylindrical body; 2. Guide cylinder; 3. Air intake pipe; 4. Support device; 5-1. Dust separation pipe (left);

5-2. Dust separation pipe (right); 6-1. Exhaust pipe (left); 6-2. Exhaust pipe (right); 7-1. Sealing end cover (left); 7-2. Sealing end Cover (right); 8-1, ash discharge pipe (left); 8-2, ash discharge pipe (right); 9-1, support (F type); 9-2, support (S type); 10 , Rib plate; a, Intake pipe mouth; b1, Dust separation pipe mouth (left); b2, Dust separation pipe mouth (right); c1, Exhaust pipe mouth (left); c2, Exhaust pipe mouth (right); d1, ash discharge nozzle (left); d2, ash discharge nozzle (right).

detailed description

Describe in detail the implementation process of the present invention in conjunction with accompanying drawing, as shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5.

The present invention consists of a cylindrical body 1, a guide tube 2, an air intake pipe 3, a support device 4, a dust separation pipe (left) 5-1, a dust separation pipe (right) 5-2, and an exhaust pipe (left) 6-1 , exhaust pipe (right) 6-2, sealing end cover (left) 7-1, sealing end cover (right) 7-2, ash discharge pipe (left) 8-1, ash discharge pipe (right) 8-2 , Bearing (F type) 9-1, bearing (S type) 9-2, rib plate 10 forms.

The cylindrical body 1 of the dust collector is arranged horizontally, and the two ends of the cylindrical body 1 are sealed with a sealing end cover (left) 7-1 and a sealing end cover (right) 7-2. The exhaust pipe (left) 6-1 and the exhaust pipe (right) 6-2 are symmetrically arranged, and are respectively installed on the sealing end cover (left) 7-1 and the sealing end cover (right) 7-2, and are connected with the cylinder Body 1 is coaxial. Ribs 10 are added to fix the exhaust pipe (left) 6-1 and the exhaust pipe (right) 6-2 to enhance their stability. Exhaust pipe (left) 6-1, exhaust pipe (right) 6-2 extend in cylindrical body 1 and become dust separation pipe (left) 5-1, dust separation pipe (right) 5-2. The guide tube 2 is fixed on the dust separation pipe (left) 5-1 and the dust separation pipe (right) 5-2 by the supporting device 4, and is coaxial with the cylindrical body 1. The intake pipe 3 adopts a volute structure and is located in the middle and upper part of the cylinder body 1. It is divided into a volute section and a straight pipe section. The straight pipe section is connected tangentially to the upper part of the cylinder body 1. The straight pipe section can be connected to the circular pipe through a transition pipe. To facilitate the connection of the air intake pipe 3 with the blower fan. The ash discharge pipe (left) 8-1 and the ash discharge pipe (right) 8-2 are located at both ends of the cylinder body 1 respectively, and are connected tangentially with the cylinder body wall along the vertical direction.

The guide tube 2 of the present invention is a cylinder, as shown in Fig. 3 and Fig. 4 . The relationship between the diameter D ₀ of the guide tube 2 and the diameter D of the cylinder body 1 is D ₀ =(0.5-0.65)*D, and the wall of the guide tube is preferably between the internal and external swirling flow, which can improve the internal circulation of the cylinder body 1 The stability is also conducive to reducing the loss of pressure drop, which solves the problem that small eddies are easily generated at the junction of the dust-laden gas swirl and the clean gas swirl, which affects the dust removal efficiency. The relationship between the length L ₀ of the guide tube 2 and the length L of the cylinder body 1 is L ₀ =(0.35-0.6)*L, the length L ₀ of the guide tube 2 is greater than the width of the intake pipe 3, ensuring that the 3 parts of the intake pipe Dust particles do not enter the central airflow. When the wind speed is relatively high, the length of the guide tube 2 can be appropriately selected to increase, so as to meet the dust removal needs of different occasions.

The working principle of the present invention is shown in FIG. 5 . After the fan is started, the dust-laden gas enters from the inlet pipe a, and enters the annular gap formed by the inner wall of the cylinder 1 and the outer wall of the guide tube 2 at a high speed along the straight pipe section of the inlet pipe 3 in a tangential manner from the volute section of the inlet pipe 3 Inside, a stable circulation is formed, and spirally moves to both ends along the annular gap, forming two outer strands from the inlet pipe port a to the sealing end cap (left) 7-1 and the sealing end cap (right) 7-2 at both ends. swirl. Under the action of centrifugal force, the dust particles are on the outside of the swirling flow. When they move to the sealed end caps at both ends, they are discharged from the ash discharge pipe (left) 8-1 and ash discharge pipe (right) 8-2 respectively; the clean gas It is on the inner side of the swirling flow, and when it moves to the sealing end caps at both ends, it is hindered by the sealing end caps, and it moves in the reverse direction in the form of a small swirl, and is driven by the pressure difference to the cylinder body 1 The center flow forms two internal swirl flows from the sealed end caps at both ends to the dust separation nozzle (left) b1 and the dust separation nozzle (right) b2. The existence of the guide tube 2 separates the internal and external swirls, which solves the problem that small eddies are easily generated at the junction of the internal and external swirls, and greatly improves the dust removal efficiency. The final clean gas is discharged from the exhaust pipe (left) 6-1 and the exhaust pipe (right) 6-2 through the dust separation pipe (left) 5-1 and the dust separation pipe (right) 5-2. The exhaust pipe port (left) c1 and the exhaust pipe port (right) c2 are respectively arranged at the ports of the exhaust pipe (left) 6-1 and the exhaust pipe (right) 6-2; the ash discharge pipe port (left) d1 and the ash discharge pipe opening (right) d2 are respectively arranged on the ports of the ash discharge pipe (left) 8-1 and the ash discharge pipe (right) 8-2.

To sum up, the horizontal circulating dust collector with the guide tube with the above structure, due to the design of the guide tube 2, prevents some dust particles from entering the central airflow under the action of airflow drag and other factors in the intake pipe 3 It is discharged with the clean gas, which effectively improves the dust removal efficiency. The design of the guide tube 2 also makes the circulation inside the cylinder body 1 more stable, and also reduces the noise when the equipment is working, and successfully solves the problem that small vortices are easily generated at the junction of the internal and external swirls, which affects the dust removal efficiency, and the dust removal efficiency is improved. Significantly improved. Therefore, the application prospect of the horizontal circulating dust collector with the guide tube will be broader.

Claims (2)

1. the horizontal circulation deduster with guide shell, it is characterized in that, comprise cylinder, guide shell, air inlet pipe, divide dirt pipe, ash releasing tube, bracing or strutting arrangement and bearing, cylinder is horizontally disposed, dirt pipe is divided to be horizontally installed in cylinder, divide in dirt pipe and be provided with blast pipe, guide shell is coaxial and be fixed together by described bracing or strutting arrangement with cylinder, air inlet pipe is positioned at cylinder middle and upper part, cylinder two ends adopt end cover sealing, two described blast pipes are coaxial and symmetry is arranged on described end cover with described cylinder, two ash releasing tubes lay respectively at cylinder two ends, and be vertically tangentially connected with cylinder body wall, ash releasing tube cross section is the rectangle of prolate, solve the secondary elevator problem of traditional cyclone dust collectors ash hole place dust, improve efficiency of dust collection.

2. the horizontal circulation deduster of band guide shell according to claim 1, is characterized in that, guide shell to be fixed on point dirt pipe by bracing or strutting arrangement and coaxial with cylinder, draft tube diameter D ₀be D with the pass of cylinder diameter D ₀between=(0.5-0.65) * D, guide shell length L ₀be L with the pass of cylinder length L ₀=(0.35-0.6) * L.