Pulse type cleaning device for crushing iron ore

Abstract

The utility model belongs to the technical field of iron ore crushing, and particularly relates to a pulse type cleaning device for iron ore crushing, which comprises a pulse dust collector body, an air outlet is arranged on one side of the pulse dust collector body, the top of the air outlet is in threaded connection with an air outlet pipe, and the lower end of the inner wall of the air outlet pipe is fixedly connected with a bottom support. The surface of the connecting frame abuts against the inner wall of the air outlet pipe, the inner wall of the air outlet pipe is slidably connected with a sliding block, the inner wall of the sliding block is sleeved with a connecting rod and fixed through threads, the top surface of the air outlet pipe is fixedly connected with an ejector rod, and the top of the ejector rod is in threaded connection with a top cover. According to the pulse dust collector disclosed by the utility model, the pulse dust collector body, the air outlet, the air outlet pipe, the bottom support, the limiting groove, the filtering frame, the limiting block, the filtering box, the feeding hole, the bottom rod and the connecting frame are matched with one another, so that dust with very small particle sizes in gas exhausted from the air outlet pipe of the pulse dust collector body can be conveniently filtered for the second time; and the environment pollution caused by direct discharge into the air is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to iron ore crushing technical field, concretely relates to a pulse type cleaning device for iron ore crushing. BACKGROUND

[0002] The pulse type cleaning device for iron ore crushing is actually more common expression is the pulse type dust catcher of iron ore crusher. It is a dust removal equipment specially designed for iron ore crushing and other mine operation environment, and high -efficient capture and removal of dust particles in air is realized through pulse dust cleaning technology;

[0003] After the efficient capture and removal of dust particles in air of the existing pulse dust catcher, due to the high viscosity and high humidity of part of dust, the filter bag may be easily pasted, and the dust cleaning effect and filtering performance are influenced. Moreover, for the dust with very small particle size, the phenomenon of penetrating the filter bag may exist in the initial filtering stage, leading to the emission concentration exceeding the standard. UTILITY MODEL CONTENTS

[0004] The utility model discloses a pulse type cleaning device for iron ore crushing, and aims at solving the problem that the existing pulse dust catcher in the prior art is pasted after the efficient capture and removal of dust particles in air, and the dust cleaning effect and filtering performance are influenced. Moreover, for the dust with very small particle size, the phenomenon of penetrating the filter bag may exist in the initial filtering stage, leading to the emission concentration exceeding the standard.

[0005] To achieve the above object, the utility model provides the following technical scheme: a pulse type cleaning device for iron ore crushing, comprising: a pulse dust collector body, the one side of pulse dust collector body is equipped with the exhaust port, the top of exhaust port is connected with the air outlet pipe, the inner wall lower end of air outlet pipe is fixedly connected with the bottom support, the top of bottom support is inserted into the limiting groove, the limiting groove is opened in the filter frame bottom, the both sides of filter frame top opening end are respectively equipped with the limiting block, the recess surface of limiting block one side is embeddedly connected with the filter box, the bottom of filter box is embeddedly connected with the first filter frame top opening end, the bottom of filter box is equipped with the feed inlet, the surface of first filter frame top is connected with the bottom bar, the inner wall of bottom bar is clampedly connected with the longitudinal end of connecting frame bottom, the surface of connecting frame is abutted to the inner wall of air outlet pipe, the inner wall of air outlet pipe is slidably connected with the sliding block, the inner wall of sliding block is sleevedly connected with the connecting rod and is fixedly screwed, the surface of air outlet pipe top is fixedly connected with the top rod, and the top of top rod is connected with the top cover.

[0006] As the pulse type cleaning device for iron ore crushing of the utility model is preferred, the lower end of bottom support is a semicircular plate, the upper end of semicircular plate is equipped with a cylinder, the limiting groove shape size is adapted to bottom support, and one limiting groove is opened in the both sides of filter frame bottom.

[0007] As a preferred embodiment of the pulse cleaning device for iron ore crushing according to this utility model, the filter frame has a rectangular through groove longitudinally opened on the side wall, and the shape and size of the through groove are adapted to the filter box. A set of "T"-shaped protrusions are respectively provided on both sides of the surface of the filter box, and the shape and size of the protrusions are adapted to the groove on one side of the limiting block.

[0008] As a preferred embodiment of the pulse cleaning device for iron ore crushing according to this utility model, the top of the filter frame is provided with a vertical rod, and the top vertical rod of the filter frame extends longitudinally through the surface of the connecting frame. The top of the top vertical rod of the filter frame is provided with two sets of filter boxes, a feed inlet and a connecting frame.

[0009] As a preferred embodiment of the pulse cleaning device for iron ore crushing according to this utility model, the feed inlet is a conical groove, and the lower end of the filter box where it intersects with the protrusion is made of elastic material.

[0010] As a preferred embodiment of the pulse cleaning device for iron ore crushing according to this utility model, the bottom longitudinal end surface of the connecting frame is provided with a circular rubber protrusion, and the bottom rubber block of the connecting frame is adapted to the circular through groove at the upper end of the bottom rod.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] Through the cooperation between the pulse dust collector body, exhaust port, air outlet pipe, base support, limiting groove, filter frame, limiting block, filter box, feed port, bottom rod and connecting frame, it is easy to perform secondary filtration of very small dust particles in the gas discharged from the air outlet pipe of the pulse dust collector body, so as to avoid them being directly discharged into the air and polluting the environment.

[0013] By utilizing the interplay between the base support, limiting groove, filter frame, limiting block, filter box, feed inlet, bottom rod, connecting frame, slider, connecting rod, top rod, and top cover, it is easy to replace the filter box inside the air outlet duct to ensure filtration efficiency. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a side view sectional structural diagram of the present invention;

[0017] Figure 3 This is a top view of the structure of this utility model;

[0018] Figure 4This is an enlarged structural diagram of the air outlet duct of this utility model;

[0019] Figure 5 This is an enlarged structural diagram of the filter frame and filter box of this utility model.

[0020] In the diagram: 1. Pulse dust collector body; 2. Exhaust port; 3. Air outlet pipe; 4. Base support; 5. Limiting groove; 6. Filter frame; 7. Limiting block; 8. Filter box; 9. Feed inlet; 10. Base rod; 11. Connecting frame; 12. Sliding block; 13. Connecting rod; 14. Top rod; 15. Top cover. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-5 This utility model provides the following technical solution: a pulse cleaning device for iron ore crushing, comprising: a pulse dust collector body 1, an exhaust port 2 on one side of the pulse dust collector body 1, an exhaust pipe 3 threadedly connected to the top of the exhaust port 2, a base support 4 fixedly connected to the lower end of the inner wall of the exhaust pipe 3, the top of the base support 4 inserted into a limiting groove 5, the limiting groove 5 being opened at the bottom of a filter frame 6, limiting blocks 7 being provided on both sides of the top opening end of the filter frame 6, a filter box 8 being fitted and connected to the groove surface on one side of the limiting block 7, the bottom of the filter box 8 being fitted and connected to the top opening end of the first filter frame 6, a feed inlet 9 being opened at the bottom of the filter box 8, and a bottom rod 1 being connected to the top surface of the first filter frame 6. 0. The bottom longitudinal end of the connecting frame 11 is engaged with the inner wall of the bottom rod 10. The surface of the connecting frame 11 abuts against the inner wall of the air outlet pipe 3. The slider 12 is slidably connected to the inner wall of the air outlet pipe 3. The connecting rod 13 is sleeved on the inner wall of the slider 12 and fixed with threads. The top surface of the air outlet pipe 3 is fixedly connected to the top rod 14. The top of the top rod 14 is threadedly connected to the top cover 15. In this design, the pulse dust collector body 1, the exhaust port 2 and the air outlet pipe 3 constitute the main body of the iron ore washing machine. A large number of related components are set in the main body of the iron ore washing machine. Since they are existing technologies and the core content of this technical solution is irrelevant to them, they will not be described in detail in this technical solution.

[0023] The main model of the iron ore washing machine in this solution is: PRCCW single-unit pulse dust collector;

[0024] During operation: Dust-laden gas enters the dust collector through the inlet. After encountering inclined plates and baffles, the airflow is redirected and flows into the ash hopper, where coarse dust particles flow directly. The airflow then turns upwards, passing through the filter bags. Dust is captured on the outer surface of the filter bags, and the purified gas enters the upper clean chamber of the filter bag chamber, converging at exhaust port 2 for discharge. As dust accumulates on the filter bags, resistance increases. When this resistance exceeds a certain range, the pulse controller sequentially triggers the control valves to open the pulse valves. Compressed air from the air tank is injected through the nozzles of the blowpipe into the corresponding filter bags via venturi tubes, causing the filter bags to expand rapidly and momentarily. The dust falls into the ash hopper and is discharged from the machine via the ash removal system.

[0025] In this design, the material of filter box 8 can be selected according to the type of dust to be filtered, such as glass fiber filter media, polyester fiber filter media, or polytetrafluoroethylene (PTFE) membrane filter media. During use, extremely small dust particles diffuse to the fiber surface due to Brownian motion and are adsorbed by the glass fiber filter media. Polyester fiber filter media: its fiber structure forms numerous tiny pores. When dust passes through the filter media under the influence of airflow, dust particles larger than the pore size are directly intercepted; simultaneously, dust is adsorbed onto the fiber surface due to van der Waals forces and other forces. PTFE membrane filter media: when dust-laden gas passes through, dust is blocked on the surface of the PTFE membrane and cannot penetrate into the interior of the filter media, thus achieving nearly 100% interception of fine dust. This type of filter media has a significant filtration effect on very small dust particles in iron ore crushing and washing equipment, especially in scenarios with extremely high emission requirements.

[0026] Preferably, the bottom of the base 4 is a semi-circular plate with a cylinder at the top, the shape and size of the limiting groove 5 are adapted to the bottom of the base 4, and a limiting groove 5 is opened on each side of the bottom of the filter frame 6.

[0027] In practical use, the filter frame 6 is fitted and fixed by the air outlet 3 fixed on the exhaust port 2 and the base 4 provided inside it.

[0028] Preferably, a rectangular through groove is longitudinally opened on the side wall of the filter frame 6, and the shape and size of the through groove are adapted to the filter box 8. A set of "T"-shaped protrusions are provided on both sides of the surface of the filter box 8, and the shape and size of the protrusions are adapted to the groove on one side of the limiting block 7.

[0029] In practical use, the protrusions on both sides of the filter box 8 are fitted into the filter frame 6 to fix the position of the filter box 8 on the filter frame 6.

[0030] Preferably, the filter frame 6 has a vertical rod at the top, and the vertical rod at the top of the filter frame 6 extends longitudinally through the surface of the connecting frame 11. The top of the vertical rod at the top of the filter frame 6 has two sets of filter boxes 8, a feed inlet 9 and a connecting frame 11.

[0031] In practical use, the vertical rods on the filter frame 6 can be used to fix the two sets of filter boxes 8 and the connecting frame 11 on them. At the same time, the filter box 8 and the connecting frame 11 placed in the air outlet duct 3 can be taken out together to replace the filter box 8.

[0032] Preferably, the feed inlet 9 is a conical groove, and the lower end of the filter box 8 where it intersects with the protrusion is made of elastic material.

[0033] In actual use, the elastic material at the bottom of the filter box 8 makes it easy to adjust and press the filter box 8 to fit into the filter frame 6.

[0034] Preferably, the bottom longitudinal end surface of the connecting frame 11 is provided with a circular rubber protrusion, and the bottom rubber block of the connecting frame 11 is adapted to the circular through groove at the upper end of the bottom rod 10.

[0035] In practical use, the connecting bracket 11 that is plugged into the bottom rod 10 can be pulled out, so as to facilitate the separation of several sets of filter boxes 8 and connecting brackets 11 that are connected together.

[0036] Working principle: During iron ore crushing, the air inlet of the pulse dust collector body 1 is used to absorb the air at the work site to filter the dust carried in the air. After filtration, the purified air continues to flow upward and is discharged from the exhaust port 2. The filter frame 6 is fitted and fixed by the air outlet pipe 3 fixed on the exhaust port 2 and the bottom support 4 inside it. At the same time, the limiting block 7 on the filter frame 6 can fit and fix the filter box 8, so that the dust in the air discharged from the exhaust port 2 enters the feed port 9 opened at the bottom of the filter box 8 to filter and intercept the fine dust carried in the upward discharged air. Meanwhile, two sets of connecting brackets 11 inserted into the top of the filter frame 6 are respectively fixed with a set of filter boxes 8 and feed ports 9, and the filter boxes 8 and filter frames 6 are tightly connected at the intersection to prevent dust from overflowing from the gaps. Thus, the two sets of connecting brackets 11 are used to filter the dust according to the dust conditions. The selected filter box 8 and feed inlet 9 are used to filter dust in the exhaust air. Due to the special conical structure of the feed inlet 9, the dust entering the filter box 8 is retained inside, preventing it from scattering from the feed inlet 9 when it is removed, thus improving the filtration effect of the filter box 8. At the same time, the slider 12, which is threaded on the top of the connecting frame 11, is slidably sleeved on the upper end of the air outlet pipe 3. In addition, the connecting frame 11, which abuts against the inner wall of the air outlet pipe 3, is tightly abutted against its inner wall, so that the connecting frame 11 can be stably placed in the air outlet pipe 3. The weight of the filter frame 6, filter box 8 and connecting frame 11 makes it slide to the bottom of the groove on the inner wall of the air outlet pipe 3. During use, the bolts fixed between the top rod 14 and the top cover 15 can be unscrewed periodically to remove the filter box 8 for disassembly and replacement, so as to prevent the accumulated dust from affecting the filtration effect of the filter box 8.

[0037] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pulse-type cleaning device for crushing iron ore, comprising: The utility model provides a pulse dust collector body (1), its characterized in be equipped with exhaust port (2) one side of pulse dust collector body (1), exhaust port (2) top thread connection air outlet pipe (3), air outlet pipe (3) inner wall lower end fixed connection bottom support (4), bottom support (4) top inserts in limiting groove (5), limiting groove (5) is set up in filter frame (6) bottom, filter frame (6) top opening both sides are equipped with limiting block (7) respectively, limiting block (7) one side recess surface inlayed connection filter box (8), filter box (8) bottom inlayed connection in first filter frame (6) top opening, filter box (8) bottom opening feed inlet (9), first filter frame (6) top surface connection bottom bar (10), bottom bar (10) inner wall clamping connection connecting frame (11) bottom longitudinal end, connecting frame (11) surface abuts to air outlet pipe (3) inner wall, air outlet pipe (3) inner wall sliding connection sliding block (12), sliding block (12) inner wall sleeve connection rod (13) and is fixed with screw thread, air outlet pipe (3) top surface fixed connection top rod (14), top rod (14) top thread connection top cover (15).

2. A pulse type cleaning device for crushing iron ore according to claim 1, characterized in that: The bottom support (4) lower end is a semicircular plate, and a cylinder is arranged at the upper end of the semicircular plate, the limiting groove (5) is matched in shape and size with the bottom support (4), and one limiting groove (5) is arranged at each side of the bottom of the filter frame (6).

3. A pulse type cleaning device for crushing iron ore according to claim 2, characterized in that: The filter frame (6) side wall is longitudinally provided with a rectangular through groove, and the through groove is matched in shape and size with the filter box (8), and a group of "T" type protrusions are arranged at both sides of the surface of the filter box (8), and the protrusions are matched in shape and size with the recess on one side of the limiting block (7).

4. A pulse type cleaning device for crushing iron ore according to claim 3, characterized in that: The filter frame (6) top is provided with a vertical rod, and the vertical rod of the filter frame (6) top longitudinally penetrates the surface of the connecting frame (11), and the vertical rod of the filter frame (6) top is provided with two groups of filter boxes (8), feed inlets (9) and connecting frames (11).

5. A pulse type cleaning device for crushing iron ore according to claim 3, characterized in that: The feed inlet (9) is a conical recess, and the lower end of the filter box (8) is matched in shape and size with the protrusion.

6. A pulse type cleaning device for crushing iron ore according to claim 4, characterized in that: The connecting frame (11) bottom longitudinal end surface is provided with a circular rubber protrusion, and the connecting frame (11) bottom rubber block is matched in shape and size with the circular through groove on the upper end of the bottom bar (10).

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