Forcible entry device for enema filter bag

Abstract

The utility model discloses a forcible entry device for an enema filter bag. The forcible entry device is formed by assembling three parts, namely a first part which is used for piercing a filter bag and is provided with a cutting edge at the inner edge of the head part; one end of the first part is detachably connected with a telescopic second part which is used for hand-held force guiding; one end of the second part, which is far away from the side of the first part, is detachably connected with a third part for blocking ash slag; inserting from the opening of the filter bag to the root of the filter bag from top to bottom along the edge of the filter bag; the second part is properly rotated, the first part is forcibly lifted upwards, lifted up and down and moved after making contact with the filter bag, the second part is made to be close to the wall of the filter bag as much as possible, and internal accumulated powder can be removed by stirring the second part back and forth after the filter bag is punctured. That is to say, according to the scheme of the utility model, accumulated powder in the filter bag can be smoothly removed, so that the weight of the filter bag after enema is reduced, and the volume expansion amount of the filter bag is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to ironmaking equipment technical field, concretely relates to a kind of breaking device for sausage filter bag. BACKGROUND

[0002] Pulse bag-type dust collector is a mature high-efficiency dust removal equipment, adopts chamber pulse spraying dust removal technology, and dust removal efficiency can reach more than 99%. Filter bag material adopts anti-static film filter material; filter bag opening adopts elastic ring, has good sealing performance, is firm and reliable; filter bag cage bone adopts polygon, reduces the friction between filter bag and cage bone. It has the characteristics of large air volume, small floor area, high purification efficiency, reliable work, simple structure, small maintenance amount, etc.

[0003] In the ironmaking coal injection pulverizing process, high concentration low pressure long bag pulse bag dust collector is an important equipment for collecting coal powder after coal powder grinding. Coal dust gas enters the dust collector from the air inlet. Due to the rapid expansion of the gas volume, part of the relatively coarse coal dust falls into the ash bucket due to inertia or natural sedimentation. The rest of the coal dust rises into the bag room with the airflow, and after filtration by the filter bag, the coal dust is retained outside the filter bag. The purified gas enters the upper box from the inside of the filter bag, and then is discharged into the atmosphere through the exhaust port, so as to achieve the purpose of dust removal. With the continuous filtration, the resistance of the dust collector also rises. When the resistance reaches a certain value, the dust cleaning controller sends a dust cleaning command to the pulse electromagnetic valve. With the pulse valve sending high-pressure reverse airflow into the bag, the filter bag expands rapidly and produces strong shaking, causing the dust outside the filter bag to fall off, achieving the purpose of dust cleaning. The coal powder concentration at the inlet of the filter bag under the operating condition of the coal injection pulverizing process is 600-1000g / m3, and the dust concentration at the outlet of the filter bag is less than 10mg / m3. The specifications of the filter bag are Φ130mm×6000mm and Φ130mm×7000mm. In the process of using and maintaining the pulse bag dust collector, the filter bag seams or bonded surface often crack after frequent blowing. The filter bags and cages are distributed in parallel in the dust collector box, and the gap between the filter bags is very small. During operation, the filter bags will shake and swing due to changes in air volume and air speed. Friction and collision between the filter bags and the inner wall of the box will inevitably occur, which will cause wear and tear over time. If the hole is not treated in time, the coal powder will fill the entire filter bag through the hole or crack, which is commonly known as "sausage". After the "sausage", the filter bag is filled with coal powder, the volume of the filter bag expands, the cage and the filter bag cannot be effectively separated, and the weight increases significantly. Moreover, the length of the pulverizing filter bag is too long, and the weight of the filter bag filled with powder can reach 50kg. Even if the filter bag and the cage are pulled up at the same time by destructive disassembly, the filter bag cannot be easily removed due to the expansion of the volume and the deep engagement with the flower spacing plate. At present, the filter bag replacement is usually achieved by segmenting the opening to discharge the powder and then pulling it up in segments. Because it is destructive disassembly, the cage cannot be used after disassembly. The coal powder in the bag cannot be recovered for use after being taken out, which not only causes spilling and environmental pollution, but also increases the production cost of replacing the filter bag. When taking out the old filter bag, the space in the dust collector box is small, and the coal powder and dust are everywhere, which causes great harm to the physical and mental health of the workers.

[0004] That is, after the "sausage", the filter bag is filled with coal powder, the volume of the filter bag expands, the cage and the filter bag cannot be effectively separated, and the weight increases significantly. Moreover, the length of the pulverizing filter bag is too long, and the weight of the filter bag filled with powder can reach 50kg. How to cut a hole at the root of the filter bag to smoothly discharge the accumulated powder in the filter bag, thereby reducing the weight of the "sausage" filter bag and reducing the volume expansion of the filter bag.

[0005] Therefore, in view of the above technical problems and defects, there is an urgent need to research and develop a breaking device for sausage filter bags. Utility model content

[0006] The utility model discloses a kind of breaking devices for sausage filter bags.

[0007] The utility model discloses a kind of breaking devices for sausage filter bags, three components of the present scheme are assembled, from the filter bag mouth is inserted from the filter bag edge from top to bottom, until the filter bag root portion;The second component is appropriately rotated, the first component contacts filter bag and is lifted upward with force after, and the second component is moved by up-down pressure, and let the second component be as close to filter bag wall as possible, after filter bag is punctured, the second component is agitated back and forth to remove internal powder.

[0008] The utility model provides a kind of breaking devices for sausage filter bags, three components of the present scheme are assembled, from the filter bag mouth is inserted from the filter bag edge from top to bottom, until the filter bag root portion;The second component is appropriately rotated, the first component contacts filter bag and is lifted upward with force after, and the second component is moved by up-down pressure, and let the second component be as close to filter bag wall as possible, after filter bag is punctured, the second component is agitated back and forth to remove internal powder.

[0009] That is, by the utility model scheme, internal powder of filter bag can be successfully removed, so as to reduce the weight of filter bag after "sausage", reduce filter bag volume expansion amount. DRAWINGS

[0010] Figure 1 It is a kind of breaking device structure schematic view for sausage filter bag of the utility model;

[0011] In the drawing:

[0012] 1-first component;11-bit head;2-second component;21-connecting rod, 3-third component;31-cap;4-tighten locknut;5-connection sleeve, 6-stiffener. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the drawings and examples, so that skilled person can understand the utility model in detail, but in any way to limit the utility model. Any change or improvement made according to the technical inspiration of the utility model belongs to the protection scope of the utility model.

[0014] The utility model is further described below in conjunction with the drawings and examples, so that skilled person can understand the utility model in detail, but in any way to limit the utility model. Any change or improvement made according to the technical inspiration of the utility model belongs to the protection scope of the utility model.

[0015] As Figure 1 Shown, provide a kind of breaking device for sausage filter bag, the device includes the first component 1 for puncturing filter bag and the inner edge of head with blade;

[0016] The first component 1 is detachably connected with a second component 2 which is telescopic and used for guiding by hand; one end of the second component 2 and away from the first component is detachably connected with a third component 3 which is used for blocking ash.

[0017] The device is provided with a t-shaped structure. The first component and the second component are connected by threads.

[0018] The connecting end of the first component 1 and the second component 2 is hollow and provided with threads on the inner wall. The threads can be connected with the second component.

[0019] The connecting position of the first component 1 and the second component 2 is provided with a nut which is used for tightening and preventing loosening.

[0020] The connecting position of the first component 1 and the second component 2 is detachably connected with a connecting sleeve which is used for reinforcing. The detachable connection is a threaded connection.

[0021] The first component 1 is provided with an L-shaped structure.

[0022] The two sides of the connecting end of the first component 1 and the second component 2 are respectively provided with at least one reinforcing rib 6.

[0023] Specifically, in the embodiment of the utility model, a bag breaking device is provided, the bag breaking device is overall in a "t" shape and adopts a combined structure. The main body is composed of a cutter head, a connecting rod and a cap. The cutter head and the connecting rod are connected by threads and provided with a tightening nut. In use, the cutter head, the connecting rod and the cap are assembled together, and in non-use, they are separated. The length of the connecting rod can be adjusted according to the length of the filter bag in actual use. The cutter head is shaped like a hawk's beak, and the length of the connecting rod can be adjusted according to the length of the filter bag in actual use.

[0024] Preferably, the bag breaking device of the utility model: ① the cutter head is in an "L" shape, the tail part is hollow and provided with internal threads, and the head part is provided with a blade on the inner edge. ② the connecting rod is made of a Φ16 round steel, and one end of the connecting rod is welded with a M16*40 screw rod. The length of the connecting rod can be selected according to the length of the filter bag in actual use. ③ the cap is made of a steel plate with a thickness of 6mm and in a circular ring shape. The inner diameter is Φ20mm, and the outer diameter is appropriately larger than the size of the filter bag opening.

[0025] Working principle and process: when the "sausage" filter bag is replaced, the bag breaking device is assembled first, the bag breaking device is inserted into the filter bag from the filter bag opening along the edge of the filter bag from top to bottom until the root of the filter bag; the connecting rod is appropriately rotated, the cutter head is contacted to the filter bag, and the connecting rod is lifted upward by force, the connecting rod is stirred back and forth after the filter bag is pierced to remove the internal accumulated powder.

[0026] Effect comparison before and after improvement: before the improvement, 6 workers are needed to continuously pull up the filter bag, the filter bag cage is damaged, and there is a risk of falling into the box after the filter bag cage is damaged, the scene is dirty and messy, and it is a good situation that one filter bag can be replaced in one hour of continuous operation. Through the scheme of the utility model, that is, the improved breaking device, only 3 workers are needed to complete the replacement of one filter bag in 30 minutes. The cage is not damaged and can be reused, the spattering of coal powder is greatly reduced, and there is basically no dust. The working environment is greatly improved.

Claims

1. A breaking device for a sausage filter bag, characterized in that The device comprises a first part with a blade on the inner edge of the head for piercing the filter bag; One end of the first part is detachably connected with a second part which is telescopic and used for hand guiding force; one end of the second part and away from the first part side is detachably connected with a third part used for retaining ash.

2. A breaking device for a filter bag for sausage according to claim 1, characterized in that The device is provided with a t-shaped structure.

3. A breaking device for a filter bag for sausage according to claim 1, characterized in that The first part and the second part are connected by threads.

4. A breaking device for a filter bag for sausage according to claim 1 or 3, characterized in that The connecting end of the first part and the second part is hollow and the inner wall is provided with threads, and the threads can be connected with the second part.

5. A breaking device for a filter bag for sausage according to claim 1 or 3, characterized in that The connecting part of the first part and the second part is provided with a nut for tightening and preventing loosening.

6. A breaking device for a filter bag for sausage according to claim 1 or 3, characterized in that The connecting part of the first part and the second part is detachably connected with a connecting sleeve for reinforcement.

7. A device for opening a filter bag for an enema according to claim 6, characterized in that The detachable connection is a threaded connection.

8. A device for opening a filter bag for an enema according to claim 5, characterized in that The first part is provided with an L-shaped structure.

9. A device for opening a filter bag for an enema according to claim 5, characterized in that At least one reinforcing rib is arranged on both sides of the connecting end of the first part and the second part.

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