Iron powder filter

Abstract

The utility model relates to the technical field of filters, in particular to an iron powder filter which comprises an upper box body, a lower box body is installed at the bottom of the upper box body, a first support is welded to the bottom of the inner wall of the lower box body, pore plates are installed between the upper box body and the lower box body and on the top of the first support, and a sinter plate is arranged between the upper pore plate and the lower pore plate. An air bag is arranged on the front face of the upper box body. According to the utility model, the conveying fan is arranged on the left side of the upper box body, and under the negative pressure generated by the conveying fan, the conveying gas containing tiny iron powder particles enters the sinter plate from the outside of the sinter plate through the micropores, so that the iron powder particles with the particle size of more than 1 micron are almost completely isolated on the outer surface of the sinter plate; and then the pulse valve is used for controlling compression to reversely blow air in the air pocket at regular intervals, so that the iron powder falls into the stock bin, the gas after the iron powder is separated is discharged into the atmosphere through the conveying fan, the separation efficiency is 99.9%, the national emission standard of 30 mg / m < 3 > can be met, the efficiency is high, and meanwhile, the iron removal effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to an iron powder filter. Background Art

[0002] Pneumatic conveying of iron oxide powder is usually achieved through a pneumatic conveying system, which uses airflow to transport iron oxide powder from one location to another.

[0003] Through research and analysis, it was found that the following disadvantages still exist to a certain extent when iron oxide powder is transported by gas.

[0004] For example, the gas transporting iron oxide powder contains tiny iron powder particles. The filters on the market cannot remove the iron powder in the iron oxide powder very well, and it is not convenient to clean and collect the iron powder after filtering, which cannot meet the needs of use. In order to solve the above technical problems, we designed an iron powder filter. Utility Model Content

[0005] The purpose of the utility model is to provide an iron powder filter, which has the advantages of filtering and clearing away small iron powder particles, and solves the problem that tiny iron powder particles are entrained in the gas conveying iron oxide powder, the iron powder in the iron oxide powder cannot be well removed by the filters on the market, and it is inconvenient to clear away and collect the iron powder after filtering.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an iron powder filter, comprising an upper box body, a lower box body is installed at the bottom of the upper box body, a bracket one is welded to the bottom of the inner wall of the lower box body, a perforated plate is installed between the upper box body and the lower box body and on the top of the bracket one, a plastic-burned plate is arranged between the upper and lower perforated plates, an air bag is arranged on the front of the upper box body, a blow pipe is installed in the inner cavity of the upper box body, the surfaces of the output end of the air bag and the input end of the blow pipe are threaded with hexagonal thin nuts, the air bag and the blow pipe are connected by a pulse valve, a rubber sealing strip is arranged between the orifice plate and the plastic-burned plate, and the gap between two adjacent orifice plates is filled with glass glue.

[0007] Preferably, a bolt 1 is provided through the top of the orifice plate below, the lower end of the bolt 1 passes through the orifice plate and the bracket 1 and is threadedly sleeved with a nut 1, a flat washer 4 is provided between the bracket 1 and the nut 1, and the flat washer 4 is sleeved on the surface of the lower end of the bolt.

[0008] Preferably, the bottom of the upper orifice plate is fixedly connected to a limiting sleeve, a pressure plate is placed at the bottom of the limiting sleeve, a screw 1 is penetrated through the bottom of the pressure plate, the upper end of the screw 1 penetrates the pressure plate and extends to the inner cavity of the limiting sleeve and is threadedly connected thereto, a spring washer 1 is arranged between the screw 1 and the pressure plate, and a set of the spring washer is arranged on the surface of the upper end of the screw 1.

[0009] Preferably, a bolt three is provided through the surface of the lower box body, the upper end of the bolt three passes through the lower box body, the orifice plate and the upper box body and is threadedly sleeved with a nut two, a flat washer three is provided between the nut two and the upper box body, and the flat washer three is sleeved on the surface of the upper end of the bolt three.

[0010] Preferably, a sealing gasket 1 is arranged between the upper box body and the orifice plate, a sealing gasket 2 is arranged between the lower box body and the orifice plate, the bolt 3 passes through the sealing gasket 1 and the sealing gasket 2 respectively, a flat washer 1 and a flat washer 2 are arranged between the two hexagonal thin nuts, one set of the flat washers is arranged on the surface of the input end of the blowing pipe, and the second set of the flat washers is arranged on the surface of the output end of the air bag.

[0011] Preferably, a bracket 2 is welded to the front side of the upper box body, the air bag is installed on the surface of the bracket 2, a bolt 2 is penetrated through the surface of the rear end of the blowing pipe, the lower end of the bolt 2 penetrates into the interior of the orifice plate and is threadedly connected thereto, a spring washer 2 is provided between the bolt 2 and the orifice plate, the spring washer 2 is sleeved on the surface of the upper end of the bolt 2, and an inspection door 1 and an inspection door 2 are respectively installed on the front side of the upper box body.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model installs the conveying fan on the left side of the upper box body. Under the negative pressure generated by the conveying fan, the conveying gas containing tiny iron powder enters the plastic sintering board through the micropores outside the plastic sintering board, and almost all the iron powder particles larger than 1 micron are isolated on the outer surface of the plastic sintering board. Then, the air in the air bag is regularly back-blown through the pulse valve to control the compression, so that the iron powder falls into the silo. The gas after the iron powder is separated is discharged into the atmosphere through the conveying fan. The separation efficiency is 99.9%, which can reach 30mg / m 3 It meets the emission standards, has high efficiency and good iron removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a partial cross-sectional schematic diagram of the utility model from the left;

[0016] Figure 3 This is a top view schematic diagram of the installation of the orifice plate of the utility model;

[0017] Figure 4 It is a schematic diagram of the front view and side view of the second bracket of the utility model;

[0018] Figure 5 It is a front view schematic diagram of a bracket 1 and a nut 1 of the utility model;

[0019] Figure 6 For this utility model Figure 1 A is a schematic diagram of a left side cross-section;

[0020] Figure 7 For this utility model Figure 2 A magnified schematic diagram of B;

[0021] Figure 8 For this utility model Figure 2 A magnified schematic diagram of C in the middle.

[0022] In the figure: 1. upper box body; 2. air bag; 3. lower box body; 4. bracket one; 5. plastic burning plate; 6. bolt one; 7. nut one; 8. orifice plate; 9. screw one; 10. spring washer one; 11. bolt two; 12. spring washer two; 13. limit sleeve; 14. pressure plate; 15. hexagonal thin nut; 16. blowing pipe; 17. flat washer one; 18. sealing gasket one; 19. sealing gasket two; 20. flat washer two; 21. bolt three; 22. nut two; 23. flat washer three; 24. flat washer four; 25. bracket two; 26. inspection door one; 27. inspection door two. DETAILED DESCRIPTION

[0023] See also Figure 1-Figure 8 The iron powder filter comprises an upper box body 1, a lower box body 3 is installed at the bottom of the upper box body 1, a bracket 4 is welded at the bottom of the inner wall of the lower box body 3, a perforated plate 8 is installed between the upper box body 1 and the lower box body 3 and at the top of the bracket 4, a plastic-sintered plate 5 is arranged between the upper and lower perforated plates 8, an air bag 2 is arranged on the front of the upper box body 1, a blow pipe 16 is installed in the inner cavity of the upper box body 1, the surfaces of the output end of the air bag 2 and the input end of the blow pipe 16 are threaded with a hexagonal thin nut 15, the air bag 2 and the blow pipe 16 are connected by a pulse valve, a rubber sealing strip is arranged between the orifice plate 8 and the plastic-sintered plate 5, and the gap between two adjacent orifice plates 8 is filled with glass glue.

[0024] See also Figure 2 and Figure 4 A bolt 6 is provided through the top of the orifice plate 8 below, and the lower end of the bolt 6 passes through the orifice plate 8 and the bracket 4 and is threadedly sleeved with a nut 7. A flat washer 4 24 is provided between the bracket 4 and the nut 7. By providing the flat washer 4 24, the contact area between the nut 7 and the pressure plate 14 is increased, so that the orifice plate 8 and the pressure plate 14 are fixed more firmly. The flat washer 4 24 is sleeved on the surface of the lower end of the bolt 6.

[0025] See also Figure 2 Figure 7The bottom of the orifice plate 8 above is fixedly connected with a limiting sleeve 13, a pressing plate 14 is placed at the bottom of the limiting sleeve 13, a screw 9 is penetrated at the bottom of the pressing plate 14, the upper end of the screw 9 penetrates the pressing plate 14 and extends to the inner cavity of the limiting sleeve 13 and is threadedly connected thereto, a spring washer 10 is arranged between the screw 9 and the pressing plate 14, by arranging the spring washer 10, the connection between the screw 9 and the limiting sleeve 13 is made more stable under the action of elastic force, and the spring washer 10 is sleeved on the surface of the upper end of the screw 9.

[0026] See also Figure 2 , Figure 6 and Figure 8 A bolt three 21 is provided through the surface of the lower box body 3, and the upper end of the bolt three 21 passes through the lower box body 3, the orifice plate 8 and the upper box body 1 and is threadedly sleeved with a nut two 22. A flat washer three 23 is provided between the nut two 22 and the upper box body 1. By providing the flat washer three 23, the contact area between the nut two 22 and the upper box body 1 is increased, and the firmness of the fixation is improved. The flat washer three 23 is sleeved on the surface of the upper end of the bolt three 21.

[0027] See also Figure 2 and Figure 8 A sealing gasket 18 is provided between the upper box body 1 and the orifice plate 8, and a sealing gasket 2 19 is provided between the lower box body 3 and the orifice plate 8. By providing the sealing gasket 18 and the sealing gasket 2 19, the orifice plate 8 is sealed with the upper box body 1 and the lower box body 3 respectively. The bolt 3 21 passes through the sealing gasket 18 and the sealing gasket 2 19 respectively. A flat washer 17 and a flat washer 20 are provided between the two hexagonal thin nuts 15. By providing the flat washer 17 and the flat washer 20, the two hexagonal thin nuts 15 are sealed, and then the injection pipe 16 and the air bag 2 are sealed. The flat washer 17 is sleeved on the surface of the input end of the injection pipe 16, and the flat washer 20 is sleeved on the surface of the output end of the air bag 2.

[0028] See also Figure 1 , Figure 2 and Figure 4 A bracket 25 is welded on the front of the upper box body 1. By setting the bracket 25, a support installation position is provided for the air bag 2. The air bag 2 is installed on the surface of the bracket 25. A bolt 21 is penetrated through the surface of the rear end of the blowing pipe 16. The lower end of the bolt 11 penetrates into the interior of the orifice plate 8 and is threadedly connected thereto. A spring washer 212 is provided between the bolt 11 and the orifice plate 8. By setting the bolt 11 and the spring washer 12, the blowing pipe 16 is installed and fixed. The spring washer 212 is sleeved on the surface of the upper end of the bolt 11. An inspection door 26 and an inspection door 27 are respectively installed on the front of the upper box body 1. By setting the inspection door 16 and the inspection door 27, it is convenient to inspect the inside of the device.

[0029] When in use, the equipment is installed on the upper part of the iron powder silo and communicated with the silo. It is used to separate the tiny iron powder particles entrained in the gas conveying the iron oxide powder. The equipment box is a steel welded part, with a plastic sintering plate 5 installed on the orifice plate 8 inside. A rubber sealing strip is added between the plastic sintering plate 5 and the orifice plate 8 to prevent the iron powder from leaking out. Under the negative pressure generated by the conveying fan, the conveying gas containing tiny iron powder particles enters the plastic sintering plate 5 through the micropores outside the plastic sintering plate 5, and almost all the iron powder particles larger than 1 micron are isolated on the outer surface of the plastic sintering plate 5. Then, the air in the air bag 2 is compressed and periodically back-blown through the pulse valve to make the iron powder fall into the silo. The gas after separating the iron powder is discharged into the atmosphere through the conveying fan. The separation efficiency is 99.9%, which can reach 30mg / m 3 It meets the emission standards, has high efficiency and good iron removal effect.

[0030] To sum up: the iron powder filter, through the cooperation of the upper box body 1, the air bag 2, the lower box body 3, the plastic sintering plate 5, the blowing pipe 16 and the orifice plate 8, solves the problem that tiny iron powder particles are entrained in the gas conveying iron oxide powder, the iron powder in the iron oxide powder cannot be removed well by the filters on the market, and it is inconvenient to clean and collect the iron powder after filtration.

Claims

1. An iron powder filter, comprising an upper housing (1), characterized in that: The bottom of the upper box body (1) is installed with a lower box body (3), the bottom of the inner wall of the lower box body (3) is welded with a bracket (4), a perforated plate (8) is installed between the upper box body (1) and the lower box body (3) and on the top of the bracket (4), a plastic burning plate (5) is arranged between the upper and lower perforated plates (8), an air bag (2) is arranged on the front of the upper box body (1), a blow pipe (16) is installed in the inner cavity of the upper box body (1), the output end of the air bag (2) and the input end of the blow pipe (16) are both threadedly sleeved with a hexagonal thin nut (15), the air bag (2) and the blow pipe (16) are connected through a pulse valve, a rubber sealing strip is arranged between the perforated plate (8) and the plastic burning plate (5), and the gap between two adjacent perforated plates (8) is filled with glass glue.

2. The iron powder filter according to claim 1, characterized in that: A bolt (6) is provided through the top of the orifice plate (8) below, the lower end of the bolt (6) passes through the orifice plate (8) and the bracket (4) and is threadedly sleeved with a nut (7), a flat washer (24) is provided between the bracket (4) and the nut (7), and the flat washer (24) is sleeved on the surface of the lower end of the bolt (6).

3. The iron powder filter according to claim 1, characterized in that: The bottom of the upper orifice plate (8) is fixedly connected to a limiting sleeve (13), a pressure plate (14) is placed at the bottom of the limiting sleeve (13), a screw (9) is penetrated through the bottom of the pressure plate (14), the upper end of the screw (9) penetrates the pressure plate (14) and extends to the inner cavity of the limiting sleeve (13) and is threadedly connected thereto, a spring washer (10) is arranged between the screw (9) and the pressure plate (14), and the spring washer (10) is sleeved on the surface of the upper end of the screw (9).

4. The iron powder filter according to claim 1, characterized in that: A bolt three (21) is provided through the surface of the lower box body (3); the upper end of the bolt three (21) passes through the lower box body (3), the orifice plate (8) and the upper box body (1) and is threadedly sleeved with a nut two (22); a flat washer three (23) is provided between the nut two (22) and the upper box body (1); the flat washer three (23) is sleeved on the surface of the upper end of the bolt three (21).

5. The iron powder filter according to claim 4, characterized in that: A sealing gasket 1 (18) is provided between the upper box body (1) and the orifice plate (8), a sealing gasket 2 (19) is provided between the lower box body (3) and the orifice plate (8), the bolt 3 (21) respectively penetrates the sealing gasket 1 (18) and the sealing gasket 2 (19), a flat washer 1 (17) and a flat washer 2 (20) are provided between the two hexagonal thin nuts (15), the flat washer 1 (17) is sleeved on the surface of the input end of the injection pipe (16), and the flat washer 2 (20) is sleeved on the surface of the output end of the air bag (2).

6. The iron powder filter according to claim 1, characterized in that: A second bracket (25) is welded to the front of the upper box body (1), the air bag (2) is mounted on the surface of the second bracket (25), a second bolt (11) is penetrated through the surface of the rear end of the blowing pipe (16), the lower end of the second bolt (11) penetrates into the interior of the orifice plate (8) and is threadedly connected thereto, a second spring washer (12) is arranged between the second bolt (11) and the orifice plate (8), the second spring washer (12) is sleeved on the surface of the upper end of the second bolt (11), and an inspection door (26) and an inspection door (27) are respectively installed on the front of the upper box body (1).

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