Special cloth bag dust collector for sintering machine head

Abstract

The utility model discloses a special cloth bag dust catcher of sintering machine head, including gravity settling chamber, cloth air duct and the multiple dust catcher body distributed in cloth air duct both sides, be provided with the air inlet and the air outlet that communicates with cloth air duct on gravity settling chamber, and the louver is set up to the air inlet and the air outlet, still be provided with the flow guide mechanism in gravity settling chamber, and the flow guide mechanism includes the multiple staggered arrangement V -shaped flow guide plate group that distributes along left and right direction, and V -shaped flow guide plate group includes the multiple V -shaped flow guide plate that distributes along front -back direction, cloth air duct is connected with dust catcher body through the air distribution elbow, in the utility model discloses, through the application of gravity settling chamber, cloth air duct, louver and flow guide mechanism has effectively reduced the flue gas temperature and the large particle dust content in flue gas, and the flue gas dust after being handled reenters cloth bag dust catcher, better satisfy the working condition demand of cloth bag dust catcher, make cloth bag dust catcher can complete the processing work of sintering machine joint flue gas dust.

Description

Technical Field

[0001] This utility model relates to the field of baghouse dust collectors, specifically to a baghouse dust collector for the head of a sintering machine. Background Technology

[0002] The working conditions of flue gas dust at the sintering machine head are quite special, characterized by high humidity, high temperature, and high dust concentration. Currently, electrostatic precipitators and ceramic multi-tube dust collectors are widely used to treat flue gas dust at the sintering machine head. However, electrostatic precipitators and ceramic multi-tube dust collectors have disadvantages such as high cost and high maintenance and repair costs. In contrast, bag filters have the advantages of low cost, stable operation, and simple maintenance and use. However, ordinary bag filters cannot be used for the flue gas conditions at the sintering machine head. Therefore, a special bag filter for the sintering machine head is proposed here. Utility Model Content

[0003] In view of the problems existing in the background art, the purpose of this utility model is to provide a special bag dust collector for sintering machine head, which effectively solves the problems existing in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A dedicated baghouse dust collector for sintering machine heads includes a gravity settling chamber, an air distribution duct, and multiple dust collector bodies distributed on both sides of the air distribution duct. The gravity settling chamber has an air inlet and an air outlet connected to the air distribution duct. Both the air inlet and outlet are equipped with louvers, each louver consisting of multiple parallel, inclined blades evenly distributed vertically, with the left blade higher than the right. A flow guiding mechanism is also provided within the gravity settling chamber, located between the air inlet and outlet. This mechanism includes multiple staggered V-shaped flow guide plate groups distributed horizontally, and each V-shaped flow guide plate group includes multiple V-shaped flow guide plates distributed vertically. The air distribution duct is connected to the dust collector bodies via a split elbow.

[0006] Furthermore, the gravity settling chamber is equipped with reinforcing ribs, which consist of three horizontal ribs and three vertical ribs, and are formed by welding steel plates, structural steel or seamless steel pipes.

[0007] Furthermore, the dust collector body includes an upper chamber, a middle chamber, and a dust hopper. Reinforcing ribs are also provided in the upper chamber, the middle chamber, and the dust hopper, and the form of the reinforcing ribs is the same as that of the reinforcing ribs in the gravity settling chamber.

[0008] Furthermore, a turbulence generating mechanism is also provided in the air inlet downstream of the louver. The turbulence generating mechanism includes two V-shaped air guide ducts arranged in conjunction with the air inlet, and multiple vertical turbulence-generating bars are respectively provided at the outlets of the two air guide ducts.

[0009] Furthermore, the V-shaped guide plate has openings on both the upper and lower sides and is respectively connected to a blower box and an air collection box. The blower box is equipped with a blower, and the air collection box has an opening that connects to the atmosphere.

[0010] Furthermore, the V-shaped air guide plate has multiple V-shaped air guide boxes with upper openings evenly distributed along the vertical direction inside. The V-shaped air guide boxes are fixed to the inner wall of the V-shaped air guide plate by connecting rods. Multiple air outlets are respectively provided on the left and right sides of the V-shaped air guide boxes near the bottom surface.

[0011] Furthermore, the inner bottom of the V-shaped air guide box is provided with an air guide ridge that cooperates with the air outlet, and the cross-section of the air guide ridge is triangular.

[0012] This utility model has the following beneficial technical effects:

[0013] This invention effectively reduces the flue gas temperature and the content of large particulate dust in the flue gas through the application of a gravity settling chamber, air distribution duct, louvers, and flow guiding mechanism. The treated flue gas dust then enters the bag filter, better meeting the working requirements of the bag filter and enabling the bag filter to complete the treatment of flue gas dust at the sintering machine joint. This application has a novel design, stable and safe operation, and is suitable for widespread use. Attached Figure Description

[0014] Figure 1 This is a front view of an embodiment of the present utility model;

[0015] Figure 2 This is a top view of an embodiment of the present utility model;

[0016] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0017] Figure 4 This is a left view of the air inlet after the louvers have been removed in an embodiment of this utility model;

[0018] Figure 5 This is a schematic diagram of the longitudinal section of the V-shaped guide plate in an embodiment of this utility model;

[0019] Figure 6 for Figure 5 A magnified view of a section at point B in the middle. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] like Figure 1-6 As shown, the sintering machine head-specific bag filter dust collector described in this embodiment includes a gravity settling chamber 1, an air distribution duct 2, and multiple dust collector bodies 3 distributed on both sides of the air distribution duct 2. The gravity settling chamber 1 is provided with an air inlet 4 and an air outlet 5 connected to the air distribution duct 2. Both the air inlet 4 and the air outlet 5 are equipped with louvers 6, which include multiple parallel inclined blades evenly distributed in the vertical direction. The inclined blades are higher on the left and lower on the right, causing the flue gas to flow obliquely downwards. A flow guiding mechanism 7 is also provided inside the gravity settling chamber 1, located at the air inlet 4 and... Between the air outlets 5, the air guiding mechanism 7 includes three staggered V-shaped guide plate groups distributed in the left-right direction. The V-shaped guide plate groups are fixed to the inner wall of the gravity settling chamber 1 through crossbeams. The V-shaped guide plate groups include multiple V-shaped guide plates 8 distributed in the front-back direction. The air distribution duct 2 is connected to the dust collector body 3 through an air distribution elbow. Specifically, the dust hopper 9 of the dust collector body 3 is connected to the air distribution elbow. Preferably, the connection point is at least two meters away from the bottom of the filter bag of the dust collector body 3, which can play a good protective role for the filter bag and effectively improve the service life of the filter bag.

[0023] The gravity settling chamber 1 is equipped with reinforcing ribs, consisting of three horizontal ribs and three vertical ribs, which are formed by welding steel plates, structural steel, or seamless steel pipes. The dust collector body 3 includes an upper chamber 10, a middle chamber 11, and an ash hopper 9. The upper chamber 10, the middle chamber 11, and the ash hopper 9 are also equipped with reinforcing ribs, with the same type of reinforcing ribs as those in the gravity settling chamber 1. The flue gas at the sintering machine head also has the characteristic of high negative pressure. The reinforcing ribs in the gravity settling chamber 1 and the dust collector body 3 can increase the structural compressive strength, making it greater than that of ordinary bag dust collectors.

[0024] A turbulence generating mechanism is also installed in the air inlet 4 downstream of the louver 6. The turbulence generating mechanism includes two V-shaped guide air ducts 12 that are set at the air inlet 4. Multiple vertical baffles 13 are set at the outlet of the two guide air ducts 12 respectively. When the flue gas from the air inlet 4 passes through the outlet of the two guide air ducts 12, multiple small vortices are formed behind the vertical baffles 13. The air vortices sent out by the two guide air ducts 12 collide and break, causing the gas flow state to change to turbulence. The heat exchange efficiency of the turbulent air flow is significantly higher than that of the stable laminar air flow, which is beneficial to the heat release of the subsequent air flow.

[0025] To enable the V-shaped baffles 8 to better cool the flue gas, the upper and lower sides of the V-shaped baffles 8 are open and connected to a blower box 14 and an air collection box 15, respectively. The blower box 14 is on top and is equipped with a blower, while the air collection box 15 is on the bottom and has an opening that connects to the atmosphere. The blower blows air through the blower box 14 into each V-shaped baffle 8. The air does not directly contact the flue gas outside the V-shaped baffles 8 but instead generates heat exchange between the walls, carrying away some of the heat from the flue gas and thus cooling the flue gas. The air then flows downward to the air collection box 15 and is then discharged.

[0026] To prevent the air in the middle of the V-shaped guide plate 8 from being discharged directly without sufficient heat exchange, multiple V-shaped air guide boxes 16 with upper openings are evenly distributed vertically inside the V-shaped guide plate 8. The distance between the left and right sides of the V-shaped air guide box 16 and the inner wall of the V-shaped guide plate 8 is the same. The V-shaped air guide box 16 is fixed to the inner wall of the V-shaped guide plate 8 by connecting rods. Multiple air outlets 17 are respectively provided on the left and right sides of the V-shaped air guide box 16 near the bottom. The air in the middle part of the V-shaped guide plate 8 enters the V-shaped air guide box 16 and is then discharged through the air outlets 17 and forced to be blown onto the inner wall of the V-shaped guide plate 8 to participate in heat exchange. An air guide rib 18 is provided on the inner bottom of the V-shaped air guide box 16 to cooperate with the air outlets 17. The cross-section of the air guide rib 18 is triangular.

[0027] The working principle of this embodiment is as follows:

[0028] The flue gas from the sintering machine head enters the air inlet 4 through the main exhaust duct. Louvers 6 are installed at the air inlet 4. Due to the downward interception angle of the inclined blades of the louvers 6, most of the spark-bearing dust particles in the flue gas are intercepted. The flue gas then reaches the gravity settling chamber 1 and the flow guiding mechanism 7 for secondary dust reduction and cooling. It is then intercepted again by the louvers 6 at the air outlet 5. Finally, it diffuses into the ash hopper 9 of the dust collector body 3 through the air distribution bend. After these three interceptions, the flue gas and dust are essentially cooled and large dust particles are intercepted. The treated flue gas and dust then enter the bag filter, better meeting the operating requirements of the bag filter and enabling it to handle the flue gas and dust from the sintering machine joint.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A special bag filter for the sintering machine head, characterized in that, The system includes a gravity settling chamber, an air distribution duct, and multiple dust collector bodies distributed on both sides of the air distribution duct. The gravity settling chamber has an air inlet and an air outlet connected to the air distribution duct. Both the air inlet and outlet are equipped with louvers, each louver consisting of multiple parallel, inclined blades evenly distributed vertically, with the left blade higher than the right. The gravity settling chamber also includes a flow guiding mechanism located between the air inlet and outlet. This mechanism comprises multiple staggered V-shaped flow guide plate groups distributed horizontally, and each V-shaped flow guide plate group includes multiple V-shaped flow guide plates distributed vertically. The air distribution duct is connected to the dust collector bodies via a split elbow.

2. The special bag filter for sintering machine head as described in claim 1, characterized in that, The gravity settling chamber is equipped with reinforcing ribs.

3. The special bag filter for sintering machine head according to claim 2, characterized in that, The dust collector body includes an upper chamber, a middle chamber, and a dust hopper, and reinforcing ribs are also provided in the upper chamber, the middle chamber, and the dust hopper.

4. The special bag filter for sintering machine head according to claim 1, characterized in that, A turbulence generating mechanism is also provided in the air inlet downstream of the louver. The turbulence generating mechanism includes two V-shaped air guide ducts that are arranged in conjunction with the air inlet. Multiple vertical turbulence-generating bars are respectively provided at the outlet of the two air guide ducts.

5. The special bag filter for the sintering machine head according to claim 1 or 4, characterized in that, The V-shaped guide vane has openings on both the upper and lower sides and is connected to a blower box and an air collector box respectively. The blower box is equipped with a blower, and the air collector box has an opening that connects to the atmosphere.

6. The special bag filter for sintering machine head according to claim 5, characterized in that, The V-shaped guide plate has multiple V-shaped air guide boxes with upper openings evenly distributed along the vertical direction, and multiple air outlets are respectively provided on the left and right sides near the bottom surface of the V-shaped air guide boxes.

7. The special bag filter for sintering machine head according to claim 6, characterized in that, The inner bottom of the V-shaped air guide box is provided with an air guide ridge that matches the air outlet, and the cross-section of the air guide ridge is triangular.

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