CN218834018U - Vacuum melting furnace dust filter - Google Patents

Abstract

The utility model provides a vacuum melting furnace dust filter relates to a metallurgical equipment technical field. The utility model discloses an including pillar and barrel, wherein, be provided with oil circulation structure and filter on the barrel, oil circulation structure includes the motor, the oil circulating pump, connecting pipe and shower nozzle, the one end of connecting pipe and the bottom intercommunication of barrel, the other end of connecting pipe and the upper end intercommunication of barrel, and be provided with the oil circulating pump on the connecting pipe, the oil circulating pump is connected with the motor, the shower nozzle is located the upper end of barrel and shower nozzle and connecting pipe intercommunication, the filter includes net formula oil cleaner and net filter, net filter sets up the upper end at the barrel, net formula oil cleaner sets up the lower extreme at the barrel. The utility model discloses can effectually filter the metal dust, can utilize the oil mist circulation to wash the filter medium mode moreover and make the filter screen clean, prolong used mechanical vacuum pump's life, reduce the equipment maintenance cost.

Description

Vacuum melting furnace dust filter

Technical Field

The utility model relates to a metallurgical equipment technical field especially relates to a vacuum melting furnace dust filter.

Background

In the smelting process of the vacuum induction furnace, a vacuum chamber is vacuumized by a vacuum pump. The invention discloses a dust filter of a vacuum smelting furnace, which is an important component of a vacuum pumping system of the smelting furnace and is mainly used for effectively filtering gas dust when a vacuum chamber is pumped to be vacuum. Because a large amount of dust gas is generated in the smelting process, if the dust gas is not directly fed into the mechanical vacuum pump with good filtering effect, the service life of the vacuum pump is seriously influenced. In addition, metal dust particles generated by vacuum smelting are very fine and have higher activity, and are easy to oxidize in air to cause spontaneous combustion, so that safety production accidents occur. For the reasons mentioned above, we have developed a vacuum smelting furnace dust filter that uses oil and gas to trap dust.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned problem, the utility model provides a vacuum melting furnace dust filter makes it can effectual filtration fall the metal dust, can utilize oil mist circulation to wash the filter medium mode moreover and make the filter screen clean, has prolonged used mechanical vacuum pump's life, reduces the equipment maintenance cost.

In order to solve the problem, the utility model provides a vacuum melting furnace dust filter, including pillar and barrel, the barrel sets up the pillar upper end, the right-hand member of barrel is provided with the air inlet, the top of barrel is provided with the gas vent, the bottom of barrel is provided with the drain, wherein, be provided with oil circulation structure and filter on the barrel, oil circulation structure includes motor, oil circulating pump, connecting pipe and shower nozzle, the one end of connecting pipe with the bottom intercommunication of barrel, the other end of connecting pipe with the upper end intercommunication of barrel, and be provided with on the connecting pipe the oil circulating pump, the oil circulating pump is in with the setting the motor of barrel left end is connected, the shower nozzle is located the upper end of barrel and the shower nozzle with the connecting pipe intercommunication, the filter includes net formula oil filter and net formula filter, the net formula oil filter sets up the upper end of barrel, net formula oil filter sets up the lower extreme of net formula barrel.

Preferably, the lower end of the cylinder body is provided with an oil storage hopper, the oil storage hopper is communicated with the connecting pipe, and a cooling pipe is arranged in the oil storage hopper.

Preferably, the lower extreme of oil storage fill is provided with the dust collection tank, the lower extreme of dust collection tank is provided with the drain, drain department is provided with the ball valve.

Preferably, the spray head comprises a first spray head, a second spray head and a third spray head which are arranged in parallel, and the first spray head, the second spray head and the third spray head are communicated with the connecting pipe through pipelines.

Preferably, the oil storage tank further comprises a sight glass, and the sight glass is arranged at the joint of the cylinder body and the oil storage hopper.

Preferably, the first spray head, the second spray head and the third spray head are all positioned above the mesh filter.

Compared with the prior art, the utility model has the advantages of it is following:

the utility model discloses vacuum melting furnace dust filter is that the gas after will being absorbed by the oil film again passes through the screen filter secondary filter through filter medium oil film absorption dust, can effectually filter the metal dust, can utilize the oil mist circulation to wash the filter medium mode moreover and make the filter screen clean, has prolonged used mechanical vacuum pump's life, reduces the equipment maintenance cost, brings huge economic benefits for the user. In addition, a large amount of dust is collected into the oil, so that spontaneous combustion caused by small-particle and high-activity metal dust entering the atmosphere can be avoided, and potential safety hazards can be effectively eliminated.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a top view of the structure of the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples, which are not intended to limit the present invention.

As shown in fig. 1 and 2, the embodiment of the present invention includes a pillar 14 and a cylinder 7, the cylinder 7 is disposed at an upper end of the pillar 14, a right end of the cylinder 7 is provided with an air inlet, a top end of the cylinder 7 is provided with an air outlet, a bottom end of the cylinder 7 is provided with a drain outlet, an oil circulation structure and a filter are disposed on the cylinder 7, the oil circulation structure includes a motor 11, an oil circulation pump 10, a connection pipe 6 and a spray head 9, one end of the connection pipe 6 is communicated with a bottom end of the cylinder 7, the other end of the connection pipe 6 is communicated with an upper end of the cylinder 7, and the connection pipe 6 is provided with the oil circulation pump 10, the oil circulation pump 10 is connected with the motor 11 disposed at a left end of the cylinder 7, the spray head 9 is disposed at an upper end of the cylinder 7 and the spray head 9 is communicated with the connection pipe 6, the spray head 9 includes a first spray head, a second spray head and a third spray head which are disposed in parallel, the first spray head, the second spray head and the third spray head are communicated with the connection pipe 6 through a pipeline, the first spray head, the second spray head and the third spray head are disposed above the mesh filter 8, the filter includes a mesh filter 3 and a mesh filter 8, the upper end of the mesh filter 7 is disposed at a lower end of the cylinder 7. The lower extreme of barrel 7 is provided with the oil storage fill, and the oil storage fill is connected with connecting pipe 6 to be provided with cooling tube 5 in the oil storage fill. The lower extreme of oil storage fill is provided with dust collection tank 2, and the lower extreme of dust collection tank 2 is provided with the drain, and drain department is provided with ball valve 1. Wherein, the sight glass 13 is arranged at the joint of the cylinder 7 and the oil storage hopper.

In the embodiment, in the dust filter of the vacuum smelting furnace, after gas with metal dust is sucked to the cylinder 7 through the gas inlet pipeline 12 during vacuum pumping, the gas dust is firstly adsorbed by the oil surface, and the dust falls into the vacuum oil 4 through gravity settling. When the gas rises through the screen filter 8, the gas dust passes through the filter medium in the filter screen again, and the oil film adsorbed on the surface of the filter medium adsorbs the dust in the gas again. The oil in the filter is pumped out from the oil pumping pipeline at the bottom of the filter by an oil circulating pump 10 and is discharged from an oil discharge pipe at the upper part of the filter. The front end of the oil suction pipeline is provided with a net filter, so that the cleanliness of the oil inlet is ensured. The front end of the oil discharge pipeline is provided with a plurality of groups of oil spray nozzles 9. The spray head 9 is arranged on the upper part of the filtering medium of the mesh filter 8. The filtering medium is cleaned through upper oil circulation spraying, so that dust adsorbed on the filtering medium falls into the oil pool along with the falling of the oil and is stored. Oil mist formed by oil passing through the filter medium can well adsorb dust in gas. The oil mist also enables the gas to achieve the purpose of cooling. The arrangement of the water circulation cooling pipe 5 in the oil pool can keep the temperature of the oil not to rise. The bottom of the filter is provided with a manual ball valve 1 for discharging sewage, and dust collected at the bottom of the oil pool can be discharged into the collector through a sewage outlet by opening the ball valve 1. Clean gas after the filtration treatment enters the mechanical vacuum pump within a proper temperature range, so that the gas with metal dust is prevented from entering the vacuum pump, and the damage to the pump is effectively prevented. In addition, a large amount of dust is collected into the oil, so that the ignition danger caused by the fact that the dust is naturally caused due to the fact that the metal dust with small particles and high activity is in contact with oxygen when the vacuum chamber is broken.

In this embodiment, the dust filter of the vacuum melting furnace is mainly composed of a ball valve 1, a dust collection tank 2, a screen oil filter 3, vacuum oil 4, a cooling pipe 5, a connecting pipe 6, a cylinder 7, a screen filter 8, a nozzle 9, an oil circulating pump 10, a motor 11, an air inlet pipe 12, a sight glass 13, and a support column 14.

1. Ball valve 1: after the filter residue is opened, the filter residue can be discharged through a sewage outlet.

2. Dust collection tank 2: is used for collecting the filtered residues so as to discharge the residues in time through a sewage discharge outlet.

3. Mesh oil filter 3: is arranged at the front end of the circulating oil suction pipe to filter the circulating oil.

4. Cooling pipe 4: used for cooling the circulating vacuum pump oil.

5. Vacuum oil 5: used for adsorbing dust.

6. Connecting pipe 6: used for connecting the screen type oil filter and the spray head.

7. A cylinder 7: the cylinder is a sealed cavity which sucks in gas with dust and discharges filtered clean gas.

8. A filter medium: consists of a filter screen and a stainless steel wire ball. And filtering dust to form return oil mist for spraying and filtering.

9. And (3) spray head 9: used for spraying the cooled oil mist.

10. The oil circulation pump 10: the motor is driven to operate to circulate the oil mist.

11. The motor 11: for driving the oil circulation pump to operate.

12. The air intake duct 12: for connecting furnace bodies

13. The sight glass 13: and observing the oil surface position in the oil filter and the cleanliness of the oil.

14. The support column 14: for supporting the cartridge and other components.

The utility model provides a carry out the dust that bleeds in vacuum with ordinary medium in the past and filter, can not realize filter medium self-cleaning function on the one hand, filter screen blocking influences the speed of bleeding. On the other hand, filtered dust is stored in oil by oil absorption to avoid direct contact with air, so that dry dust adsorbed on a filter screen is avoided, and spontaneous combustion in air is caused due to large surface activity of metal dust particles when a vacuum chamber is broken. The vacuum smelting furnace dust filter can also cool the vacuum smelting exhaust temperature, and the influence of high-temperature gas on the vacuum pump is avoided.

All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

In the description of the present specification, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of describing the technical solutions of the present patent and for simplification of the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present patent application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this patent application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this specification, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present specification can be understood by those of ordinary skill in the art as appropriate.

In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it is to be understood that they have been presented by way of example only, and not limitation, and that changes, modifications, substitutions and alterations may be made thereto by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (6)

1. The utility model provides a vacuum melting furnace dust filter, includes pillar and barrel, the barrel sets up the pillar upper end, the right-hand member of barrel is provided with the air inlet, the top of barrel is provided with the gas vent, the bottom of barrel is provided with the drain, a serial communication port, be provided with oil circulation structure and filter on the barrel, oil circulation structure includes motor, oil circulating pump, connecting pipe and shower nozzle, the one end of connecting pipe with the bottom intercommunication of barrel, the other end of connecting pipe with the upper end intercommunication of barrel, and be provided with on the connecting pipe oil circulating pump, oil circulating pump is in with the setting the motor of barrel left end is connected, the shower nozzle is located the upper end of barrel and the shower nozzle with the connecting pipe intercommunication, the filter includes net formula oil filter and net formula filter, net formula filter sets up the upper end of barrel, net formula oil filter sets up the lower extreme of barrel.

2. A vacuum smelting furnace dust filter according to claim 1, characterized in that the lower end of the cylinder is provided with an oil hopper, which communicates with the connecting pipe and in which a cooling pipe is provided.

3. A vacuum smelting furnace dust filter according to claim 2, characterized in that the lower end of the oil storage hopper is provided with a dust collection tank, the lower end of the dust collection tank is provided with the drain outlet, and the drain outlet is provided with a ball valve.

4. A vacuum smelting furnace dust filter according to claim 3, characterized in that the nozzles comprise a first nozzle, a second nozzle and a third nozzle arranged side by side, and the first nozzle, the second nozzle and the third nozzle are all connected to the connecting pipe through pipes.

5. A vacuum smelting furnace dust filter according to claim 4, further comprising a sight glass provided at the junction of the cylinder and the oil storage hopper.

6. A vacuum smelting furnace dust filter according to claim 5, characterized in that the first nozzle, the second nozzle and the third nozzle are located above the screen filter.

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