Telescopic dust removal filter bag for blast furnace gas

Abstract

The utility model discloses a telescopic dust removal filter bag for blast furnace gas. The telescopic dust removal filter bag comprises a baffle, the dust removal filter bag is arranged in the baffle in a sleeving manner; the dust removal filter bag comprises an outer-layer filter bag, an inner-layer filter bag and a fixing ring, the outer wall of the fixing ring is movably connected with the inner wall of the bottom of the inner-layer filter bag, and the inner-layer filter bag is located in the outer-layer filter bag; and the support frame is positioned in the dust removal filter bag. The utility model relates to the technical field of dust removal and environmental protection. According to the device, the baffle and the filter bag are arranged, the dust removal filter bag is sleeved with the baffle, and the baffle is clamped at the air outlet, so that the filter bag can be prevented from falling off, and an operator can take and place the filter bag more conveniently. The telescopic motion of the dust removal filter bag can be realized through the telescopic rod, the size of the whole device is reduced, more dust removal filter bags can be conveniently carried by a worker at a time, more time and labor are saved, and meanwhile, the supporting frame also plays a role in supporting the dust removal filter bags to prevent the interior of the filter bags from retracting.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal and environmental protection, and particularly relates to a telescopic dust removal filter bag for blast furnace gas. Background Art

[0002] Under the background of comprehensively implementing environmental protection and energy conservation, bag filters have become a commonly used technical means in the process of blast furnace gas treatment. For traditional dust removal filter bags for blast furnace gas, the filter bags are directly placed into the gas outlet, and there is no fixing device at the fixing ring. When the machine performs pulse jet blowing on the filter bag, the filter bag is likely to fall off. The support frame of the traditional dust removal filter bag for blast furnace gas is the same size as the filter bag. Workers can only carry the support frame in small amounts and multiple times, which is time-consuming and laborious. At the same time, the support frame is directly placed into the filter bag, increasing the gravity at the bottom of the filter bag and accelerating the damage rate of the connection between the fixing ring and the gas outlet. Content of the Utility Model

[0003] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve its technical problems is: a telescopic dust removal filter bag for blast furnace gas, comprising:

[0004] A baffle;

[0005] A dust removal filter bag, which is sleeved inside the baffle;

[0006] The dust removal filter bag includes an outer filter bag, an inner filter bag and a fixing ring. The outer wall of the fixing ring is clamped with the inner wall of the baffle, and the outer wall of the fixing ring is movably connected to the inner wall of the bottom of the inner filter bag. The inner filter bag is located inside the outer filter bag;

[0007] A support frame, which is located inside the dust removal filter bag;

[0008] The support frame includes a bottom frame. A telescopic rod is fixedly connected to the top of the bottom frame. A connecting component is arranged inside the telescopic rod. Movable rings are fixedly connected to both sides of the connecting component. A top rod is fixedly connected to the end of the telescopic rod away from the bottom frame.

[0009] Preferably, holes are opened at the bottoms of the outer filter bag and the inner filter bag. The top rod includes a connecting column, and the connecting column is fixedly connected to the end of the telescopic rod away from the bottom frame through the holes.

[0010] Preferably, the outer wall of the bottom frame close to the baffle is movably connected to the outer wall of the fixing ring, and the fixing ring is located between the bottom frame and the baffle.

[0011] Preferably, the telescopic rod includes an outer rod, an inner rod is slidably connected to the inner wall of the outer rod, a fixing hole is formed at the top end of the outer rod, a telescopic ball is spring-connected to the bottom end of the inner rod, the outer wall of the telescopic ball is clamped with the inner wall of the fixing hole, and the bottom end of the inner rod is clamped with the top end of the outer rod through the telescopic ball and the fixing hole.

[0012] Preferably, the connecting assembly includes a fixed shaft, both ends of the fixed shaft are fixedly connected to the inside of the telescopic rod and penetrate through the telescopic rod at both ends, a rotating shaft is rotatably connected to the outer wall of the fixed shaft, one end of the rotating shaft away from the telescopic rod is fixedly connected to one side of the movable ring close to the telescopic rod, and the number of the rotating shafts is two.

[0013] Preferably, the top end of the connecting column is rotatably connected to a groove rod and a plug rod respectively through a shaft, and the protrusion on the plug rod is clamped with the groove on the groove rod.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. By providing a baffle and a filter bag, the fixing ring is passed through the baffle and placed outside the air outlet of the blast furnace gas, and the baffle is clamped at the air outlet, which can not only prevent the filter bag from falling, but also facilitate the operation personnel to take and place the filter bag.

[0016] 2. By providing a telescopic rod, the telescopic movement of the dust removal filter bag can be realized, the volume of the whole device is reduced, so that the staff can carry more at one time, which is more time-saving and labor-saving. At the same time, it also plays a supporting role for the dust removal filter bag to prevent the internal retraction of the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of the present utility model;

[0018] Figure 2 is the sectional view of the present utility model;

[0019] Figure 3 is the structural schematic diagram of the support frame of the present utility model;

[0020] Figure 4 is the structural schematic diagram of the telescopic rod of the present utility model;

[0021] Figure 5 is the structural schematic diagram of the connecting assembly of the present utility model;

[0022] Figure 6 is the structural schematic diagram of the ejector rod of the present utility model.

[0023] In the figure: 1, baffle; 2, dust removal filter bag; 3, support frame; 21, outer filter bag; 22, inner filter bag; 23, fixing ring; 31, bottom frame; 32, telescopic rod; 33, movable ring; 34, connecting component; 35, top rod; 321, outer rod; 322, inner rod; 323, fixing hole; 324, telescopic ball; 341, fixing shaft; 342, rotating shaft; 351, connecting column; 352, groove rod; 353, insert rod. Detailed implementation mode

[0024] The following further describes the present utility model in detail with reference to the drawings and specific implementation modes. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0025] Embodiment:

[0026] Please refer to Figure 1 - Figure 6 , the present utility model provides a technical solution: a telescopic dust removal filter bag for blast furnace gas, including:

[0027] Baffle 1; dust removal filter bag 2, the dust removal filter bag 2 is sleeved inside the baffle 1; the dust removal filter bag 2 includes an outer filter bag 21, an inner filter bag 22 and a fixing ring 23, the outer wall of the fixing ring 23 is clamped with the inner wall of the baffle 1, the outer wall of the fixing ring 23 is movably connected with the inner wall of the bottom of the inner filter bag 22, and the inner filter bag 22 is located inside the outer filter bag 21; support frame 3, the support frame 3 is located inside the dust removal filter bag 2; the support frame 3 includes a bottom frame 31, the top of the bottom frame 31 is fixedly connected with a telescopic rod 32, a connecting component 34 is arranged inside the telescopic rod 32, movable rings 33 are fixedly connected to both sides of the connecting component 34, and one end of the telescopic rod 32 far from the bottom frame 31 is fixedly connected with a top rod 35.

[0028] Holes are opened at the bottoms of the outer filter bag 21 and the inner filter bag 22, and the top rod 35 includes a connecting column 351, and the connecting column 351 is fixedly connected with one end of the telescopic rod 32 far from the bottom frame 31 through the hole.

[0029] The outer wall of the bottom frame 31 close to the baffle 1 is movably connected with the outer wall of the fixing ring 23, and the fixing ring 23 is located between the bottom frame 31 and the baffle 1.

[0030] The telescopic rod 32 includes an outer rod 321, an inner rod 322 is slidably connected to the inner wall of the outer rod 321, a fixing hole 323 is formed at the top end of the outer rod 321, a telescopic ball 324 is spring-connected to the bottom end of the inner rod 322, the outer wall of the telescopic ball 324 is clamped with the inner wall of the fixing hole 323, and the bottom end of the inner rod 322 is clamped with the top end of the outer rod 321 through the telescopic ball 324 and the fixing hole 323.

[0031] The connecting component 34 includes a fixed shaft 341, both ends of the fixed shaft 341 are fixedly connected to the inside of the telescopic rod 32 and penetrate through the telescopic rod 32 at both ends, a rotating shaft 342 is rotatably connected to the outer wall of the fixed shaft 341, one end of the rotating shaft 342 away from the telescopic rod 32 is fixedly connected to one side of the movable ring 33 close to the telescopic rod 32, and the number of the rotating shafts 342 is two.

[0032] The top end of the connecting column 351 is rotatably connected to a groove rod 352 and a plug rod 353 respectively through shafts, and the protrusion on the plug rod 353 is clamped with the groove on the groove rod 352.

[0033] Working principle:

[0034] During use, first place the inner filter bag 22 into the outer filter bag 21, then sleeved the two filter bags inside the baffle 1, and then wrap the two filter bag mouths around the fixing ring 23. Then gently bend the plug rod 353 on the connecting column 351 to the side, take out the protrusion from the groove in the groove rod 352, and lift the groove rod 352 and the plug rod 353. Then put the support frame 3 into the inner filter bag 22, extend the lifted groove rod 352 and plug rod 353 out of the opening at the bottom of the dust removal filter bag 2, and finally put down the groove rod 352 and the plug rod 353, and snap the protrusion into the groove. Since the pulse jet system blows from the filter bag mouth downwards, and the protrusion is snapped into the groove from the side, the ejector rod 35 will not be blown open, which plays a role in fixing and shaping the bottom of the dust removal filter bag 2. At this time, the bottom frame 31 and the baffle 1 in the support frame 3 fix the fixing ring 23 in the middle, which can prevent the dust removal filter bag 2 from falling from the filter bag mouth. Finally, put the whole device into the blast furnace gas outlet, and the baffle 1 is stuck outside the opening, which can prevent the dust removal filter bag 2 and the support frame 3 from falling, and also makes it easier for the operator to pick up and place. When the blast furnace gas enters, the support frame 3 can prevent the dust removal filter bag 2 from shrinking and deforming, and plays a supporting role for the dust removal filter bag 2.

[0035] During the process of the dust removal filter bag 2 filtering dust, the expansion ball 324 on the telescopic rod 32 can be pressed out of the fixing hole 323 by the spring. Since there is no fixed support, the inner rod 322 falls into the outer rod 321, driving the dust removal filter bag 2 to expand and contract, reducing the volume of the entire device, facilitating the staff to carry more at one time, saving time and effort. And through the rotation of the rotating shaft 342 in the connecting assembly 34 on the fixed shaft 341, the movable ring 33 can be folded up and down. Not only can the angle of the movable ring 33 be adjusted to fit the dust removal filter bag 2 better, but when the filter bag needs to be replaced, folding up the movable ring 33 can make it easier to take out and put in the support frame.

[0036] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A telescopic dust removal filter bag for blast furnace gas, characterized in that, Comprising: Baffle plate (1); Dust removal filter bag (2), the dust removal filter bag (2) is sleeved inside the baffle plate (1); The dust removal filter bag (2) includes an outer filter bag (21), an inner filter bag (22) and a fixing ring (23), the outer wall of the fixing ring (23) is clamped with the inner wall of the baffle plate (1), and the outer wall of the fixing ring (23) is movably connected to the inner wall of the bottom of the inner filter bag (22), and the inner filter bag (22) is located inside the outer filter bag (21); Support frame (3), the support frame (3) is located inside the dust removal filter bag (2); The support frame (3) includes a bottom frame (31), the top of the bottom frame (31) is fixedly connected with a telescopic rod (32), a connecting component (34) is arranged inside the telescopic rod (32), movable rings (33) are fixedly connected to both sides of the connecting component (34), and the end of the telescopic rod (32) far from the bottom frame (31) is fixedly connected with a top rod (35).

2. The telescopic dust removal filter bag for blast furnace gas according to claim 1, characterized in that: Holes are formed at the bottoms of the outer filter bag (21) and the inner filter bag (22), and the top rod (35) includes a connecting column (351), and the connecting column (351) is fixedly connected with the end of the telescopic rod (32) far from the bottom frame (31) through the hole.

3. A telescopic dust removal filter bag for blast furnace gas according to claim 1, characterized in that: The outer wall of the bottom frame (31) close to the baffle plate (1) is movably connected to the outer wall of the fixing ring (23), and the fixing ring (23) is located between the bottom frame (31) and the baffle plate (1).

4. A telescopic dust removal filter bag for blast furnace gas according to claim 1, characterized in that: The telescopic rod (32) includes an outer rod (321), an inner rod (322) is slidably connected to the inner wall of the outer rod (321), a fixing hole (323) is formed at the top of the outer rod (321), a telescopic ball (324) is spring-connected to the bottom end of the inner rod (322), the outer wall of the telescopic ball (324) is clamped with the inner wall of the fixing hole (323), and the bottom end of the inner rod (322) and the top end of the outer rod (321) are clamped through the telescopic ball (324) and the fixing hole (323).

5. A telescopic dust removal filter bag for blast furnace gas according to claim 1, characterized in that: The connecting component (34) includes a fixed shaft (341), both ends of the fixed shaft (341) are fixedly connected to the inside of the telescopic rod (32) and penetrate through the telescopic rod (32) at both ends, a rotating shaft (342) is rotatably connected to the outer wall of the fixed shaft (341), the end of the rotating shaft (342) far from the telescopic rod (32) is fixedly connected to the side of the movable ring (33) close to the telescopic rod (32), and the number of the rotating shafts (342) is two.

6. A telescopic dust removal filter bag for blast furnace gas according to claim 2, characterized in that: The top end of the connecting column (351) is respectively rotatably connected with a groove rod (352) and a plug rod (353) through a shaft, and the protrusion on the plug rod (353) is clamped with the groove on the groove rod (352).

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