CN201044892Y - Multi-stage cyclone oil mist treatment and recovery device - Google Patents

Abstract

Disclosed is a multi-stage handling and reclaiming device for vortex oil fogs, wherein a circular tank body is arranged on a chassis of a cone, a conical header is connected with the top portion of the circular tank body, a filling layer is arranged on the upper of the circular tank body, and a vortex device and an annular channel are arranged on the lower of the circular tank body. The vortex device comprises a vortex barrel body which is suspended and fixed on an inner wall of the circular tank body via a pyramid round pipe arranged at the upper end. An annular facing bar is arranged in the middle of the vortex barrel body, a leak oil line is arranged on the bottom of the annular facing bar, a dished vortex pan is arranged on the upper of an endostoma margin of the annular facing bar, and an oil fog input pipe with a downward inclined inlet which is tangent with the circular tank is arranged on the horizontal radial position of the annular channel. The utility model employs a multi-stage vortex technical solution scheme of providing the vortex barrel body, the pyramid round pipe and the annular channel inside the circular tank, thereby overcoming the defects of complex craft, high cost, low purification efficiency and secondary pollution and the like of the existing oil removing device. The utility model is adapted for the oil fog processing of operating places for metal cutting and processing equipment.

Description

Multi-stage cyclone oil mist treatment and recovery device

Field

The utility model relates to an oil mist treatment and recovery device, in particular to a multi-stage cyclone oil mist treatment and recovery device.

Background technique

As we all know, industries such as high-speed and ultra-high-speed cutting CNC machine tools, precision instrument processing, and metal heat treatment will generate a lot of heat during work, and the oil used for lubrication and cooling will easily vaporize when it encounters high-temperature metal parts, resulting in There is a large amount of oil mist, and the oil mist exhaust gas contains toxic and harmful substances and odors such as acrolein, polychlorinated biphenyls, and α-pyrene anti-aromatic hydrocarbons, which not only pollute the environment but also greatly endanger the health of the operators.

At present, the commonly used oil mist pollution control methods at home and abroad mainly include: (1) Electrostatic precipitation method: the oil mist particles are charged by an electric field, and are collected on the plate under the action of the electric field force, so as to achieve the purification effect. This method has high efficiency and low resistance, but after long-term use, the grease on the electrode surface forms an oil film layer, which hinders electric field discharge and is not easy to clean. The equipment is expensive and occupies a large area. In addition, secondary pollution will also be generated when cleaning the electrodes; (2) Adsorption method: that is, the use of adsorption materials to purify the oil fume, the adsorption materials are mostly activated carbon, degreased chicken feathers, etc. This method has high decontamination efficiency, but the adsorbent needs to be replaced frequently, and the cost is high; (3) Filtration method: filter cloth, filter screen and grid are mainly used, and filter cloth filter and fiber filter are used. The oil mist flows through the filter layer, and the particles in the oil mist are removed due to the power trapping effect, and most of the oil mist odor can also be removed at the same time. This method is reliable in operation and easy to install, but the filter screen is easy to block, the pressure drop is large, and the price is relatively expensive; (4) atomization washing method: absorb the pollutants in the oil mist with the absorption liquid, and make the pollutants from the air through the gas-liquid contact gas phase to liquid phase shift. This method has high purification efficiency, occupies less land, and can be cleaned automatically, but there is secondary pollution, and the washing liquid needs further treatment.

The above-mentioned oil mist pollution control device and treatment method also have problems such as narrow application range, complicated process, short service life, easy clogging of filter devices, inconvenient maintenance, secondary pollution, and low purification efficiency.

Contents of the invention

In view of the above situation, the purpose of this utility model is to provide a multi-stage cyclone oil mist treatment with simple overall structure, small footprint, low cost, convenient maintenance, wide application range, high purification efficiency and no secondary pollution Recovery device.

In order to achieve the above purpose, a multi-stage cyclone oil mist treatment and recovery device, a circular tank body is arranged on the conical base, a conical top cover is connected to the top of the circular tank body, and a packing layer is arranged on the upper part of the circular tank body , the lower part of the circular tank is provided with a swirl device and an annular channel, the swirl device includes a swirl cylinder, the swirl cylinder is suspended and fixed on the inner wall of the circular tank through the tapered tube at the upper end, and the swirl flow There is an annular support plate in the middle of the cylinder, an oil leakage pipe is provided at the bottom of the annular support plate, and a disc-shaped swirl disc is arranged on the upper edge of the inner mouth of the annular support plate. The disc-shaped swirl disc includes a cylinder, a blind plate and a swirl Blade, the swirl blade is triangular shape, its bottom edge is obliquely fixed on the inner wall of the cylinder, its top angle corresponding to the bottom edge is tangentially fixed on the outer diameter of the blind plate, and the horizontal radial position of the annular channel is set There is an oil mist inlet pipe tangent to the circular tank body and the inlet is inclined downward.

In order to achieve structural optimization, further measures include:

The top and bottom of the packing layer are provided with mesh partitions.

The center of the conical top cover is provided with an exhaust connection nozzle.

The middle part of the conical top cover is provided with a packing layer inspection door.

The middle part of the circular tank is equipped with a swirl device inspection door.

The lower part of the circular tank is provided with an oil level window.

An oil outlet pipe is arranged on the cone of the conical base.

The center of the conical base is provided with a slag discharge pipe, and two control valves are connected in series on the slag discharge pipe.

The utility model adopts a multi-stage swirl technology solution in which a swirl cylinder, a conical circular pipe, and an annular channel are arranged in a circular tank, and overcomes the complex process, high cost, low purification efficiency, and two problems of the existing degreasing device. Pollution and other defects.

Compared with the prior art, the utility model has the following beneficial effects: (1) the oil mist treatment effect in the workplace is good, the purification efficiency reaches over 99%, and the working environment is significantly improved; (2) no secondary pollution is generated in the decontamination process; (3) Simple structure, small footprint and low cost; (4) Convenient operation and maintenance; (5) The filtered deposited oil can be recycled.

The utility model is suitable for the treatment of oil mist in the workplace of metal cutting processing equipment; it can be widely applied to general machine tools such as turning, milling, planing, grinding, drilling, boring, etc., and can also be widely applied to special machine tools in other industries, such as: manufacturing Groove grinding machines for drill bits and end mills, screw rubbing machines for manufacturing standard parts and other mechanical processing industries.

After the utility model is provided with a liquid nozzle, it can also be widely used in the dust removal treatment of various dust-containing exhaust gases in industries such as chemical industry, plastics, and casting.

Description of drawings

Figure 1 is a front view of a multi-stage cyclone oil mist treatment and recovery device.

Fig. 2 is an enlarged front view of the cyclone device in Fig. 1 .

Fig. 3 is a top view of the dish-shaped swirl disk and the annular support plate in Fig. 2 .

Fig. 4 is an expanded view of the dish-shaped swirl disk in Fig. 3 .

Fig. 5 is a schematic view in direction B of the swirl tank in Fig. 4 .

Fig. 6 is an enlarged schematic view of a swirl vane.

Fig. 7 is a front view of A-A in Fig. 1 .

In the figure 1, conical base, 11, oil outlet pipe, 12, slag outlet pipe, 13, control valve, 2, circular tank body, 21, swirl device inspection door, 22, oil level window, 3, conical top cover, 31. Packing layer inspection door, 32. Exhaust connection nozzle, 4. Packing layer, 41. Mesh partition, 5. Swirl device, 51. Swirl cylinder, 52. Tapered pipe, 53, Ring Support plate, 54, oil leakage pipe, 55, dish-shaped swirl disc, 551, cylinder, 552, swirl blade, 553, blind plate, 554, swirl groove, 6, annular channel, 7, oil mist input pipe .

Detailed ways

Referring to the accompanying drawings, a multi-stage cyclone oil mist treatment and recovery device is made of general steel, and a circular tank body 2 is provided on a conical base 1. The top of the circular tank body 2 is connected with a conical top cover 3, and the conical top is The center of the cover 3 is provided with an exhaust connection nozzle 32, and a packing layer 4 is arranged on the upper part of the circular tank body 2. In order to fix the packing layer 4 in an appropriate position, a mesh partition 41 is arranged on the top and bottom of the packing layer 4. The mesh The partition plate 41 is welded on the inner wall of the circular tank body 2. The lower part of the circular tank body 2 is provided with a swirl device 5 and an annular channel 6. The swirl device 5 includes a swirl cylinder 51, which passes through the upper end The tapered circular tube 52 is suspended and fixed on the inner wall of the circular tank 2, and the middle part of the swirl cylinder 51 is welded with an annular support plate 53. In order to make the oil condensed and deposited on the annular support plate 53 flow to the conical base 1, the annular support plate The bottom of 53 is equipped with an inclined oil leakage pipe 54, and the upper part of the inner edge of the annular support plate 53 is provided with a disc-shaped swirl disc 55, which includes a cylinder 551, a blind plate 553 and a swirl vane 552, and Blade 552 is triangular shape, and its bottom edge is obliquely fixed on the inner wall of cylinder 551, and the top angle of its corresponding bottom edge becomes tangentially fixed on the outer diameter of blind plate 553, and when connecting, earlier the bottom edge of swirl blade 552 is used The cutting machine cuts it into an arc shape that matches the inner wall of the cylinder 551, then obliquely welds the swirl blade 552 to the inner wall of the cylinder 551, and then welds the top angle of the swirl blade 552 tangentially to the outer diameter of the blind plate 553 , thus, an inclined swirl groove 554 is formed between every two inclined swirl vanes 552, and the horizontal radial portion of the annular channel 6 is connected to the oil tangent to the circular tank 2 and the inlet is inclined downward. The mist input pipe 7 is connected with a slag discharge pipe 12 at the center of the conical base 1, and two control valves 13 connected in series are arranged on the slag discharge pipe 12, and an oil discharge pipe 11 is arranged on the cone of the conical base 1, and the oil discharge pipe 11 is connected with a high Airtight closed-loop special oil outlet device connection, the center of the conical top cover 3 is connected to an exhaust connection nozzle 32, for the convenience of use, inspection and maintenance, the packing layer inspection door 31 is set on the conical top cover 3, and the middle part of the circular tank body 2 A swirl device inspection door 21 is provided, and an oil level window 22 is provided at the bottom of the circular tank body 2 .

The normal operation of the utility model is: the oil mist collected through the plant oil mist pipeline enters the annular channel 6 of the multi-stage swirl oil mist treatment and recovery device at a high speed through the oil mist input pipe 7 under the action of the induced draft fan. The input pipe 7 is tangent to the circular tank 2 and the inlet is inclined downward, so the oil mist spirals downward along the annular channel 6 to form a descending external swirling oil mist flow, and the centrifugal force generated during this rotation Throw the oil mist of large particles to the inner wall of the circular tank 2, lose its inertia after colliding with the inner wall of the circular tank 2, rely on the kinetic energy formed by the high-speed entrance and the downward gravity to slide down the inner wall of the circular tank 2, during the movement The oil mist flows into the conical base 1 after being condensed, collided, deposited and so on. When the oil mist flow rotates to the lower part of the annular channel 6, it enters the swirl device 5 through the lower end of the swirl cylinder 51, and then enters the disc-shaped swirl disc 55 from between the blind plate 553 and the annular support plate 53, and along the disc-shaped The swirl groove 554 surrounded by the swirl vanes 552 on the swirl disk 55 performs an outer tangential swirl movement, and the centrifugal force generated during the rotation will throw the oil mist of the medium-sized particles to the inner wall of the circular tank 2, and then After condensation and deposition, it flows to the annular support plate 53 , and then flows into the conical base 1 through the inclined oil leakage pipe 54 . The oil mist airflow continues to move forward and enters the conical tube 52 from the swirl cylinder 51. Due to the sudden increase in space, the airflow velocity changes, and the airflow field undergoes a sudden change. The oil mist of small particles collides with the circular tank 2 The inner wall collides, and gathers on the inner wall of the circular tank 2 in a very short time to form oil droplets, deposits on the annular support plate 53, and flows into the conical base 1 through the inclined oil leakage pipe 54. After the oil mist flows through the first three stages of treatment, most of the oil mist particles are removed, and the remaining part enters the packing layer 4 with the air flow. Under the adsorption of the special material of the packing layer 4, the packing layer 4 further purifies the trace oil mist particles The air flow of the final net gas is output from the exhaust connection nozzle 32 at the center of the conical top cover 3 . The impurities produced during the oil precipitation process are discharged from the slag discharge pipe 12, and the deposited oil is observed through the oil level window 22. When it exceeds a certain scale, it is collected by a high-air-tight closed-loop device, which eliminates the Secondary pollution is avoided, and the oil can be recycled.

The above are only preferred embodiments of the utility model, and those skilled in the art can also make various modifications and transformations to this according to the above-mentioned concept of the utility model. For example, the modification and transformation of oil mist input pipe, disc swirl disc, triangular vane, swirl groove, conical round pipe and addition of liquid nozzle. However, similar changes and modifications all belong to the essence of the present utility model.

Claims (8)

1. a multi-stag eddy flow mist of oil is handled retracting device, it is characterized in that circular cone base (1) is provided with circular tank (2), circular tank (2) top connects a circular cone top cover (3), described circular tank (2) top is provided with packing layer (4), circular tank (2) bottom is provided with swirl-flow devices (5) and circular passage (6), described swirl-flow devices (5) comprises an eddy flow cylindrical shell (51), the taper pipe (52) of this eddy flow cylindrical shell (51) through the upper end hangs and is fixed in circular tank (2) inwall, eddy flow cylindrical shell (51) middle part is provided with annular backup pad (53), the bottom of annular backup pad (53) is provided with leak oil line (54), annular backup pad (53) internal orifice edge upper part is provided with dish-shaped eddy flow tray (55), described dish-shaped eddy flow tray (55) comprises cylinder (551), blind plate (553) and swirl vane (552), described swirl vane (552) is a triangle, its base tilts to be fixed on the inwall of cylinder (551), the drift angle on its corresponding base becomes tangentially to be fixed on the external diameter of blind plate (553), and the horizontal radial place of described circular passage (6) is provided with mist of oil input pipe (7) tangent with circular tank (2) and that enter the mouth downward-sloping.

2. multi-stag eddy flow mist of oil according to claim 1 is handled retracting device, it is characterized in that the upper and lower netted dividing plate (41) that is provided with of described packing layer (4).

3. multi-stag eddy flow mist of oil according to claim 1 is handled retracting device, it is characterized in that circular cone top cover (3) center is provided with exhaust connection mouth (32).

4. multi-stag eddy flow mist of oil according to claim 1 is handled retracting device, it is characterized in that circular cone top cover (3) middle part is provided with packing layer inspection door (31).

5. multi-stag eddy flow mist of oil according to claim 1 is handled retracting device, it is characterized in that circular tank (2) middle part is provided with swirl-flow devices inspection door (21).

6. multi-stag eddy flow mist of oil according to claim 1 is handled retracting device, it is characterized in that circular tank (2) bottom is provided with oil level form (22).

7. multi-stag eddy flow mist of oil according to claim 1 is handled retracting device, it is characterized in that the cone of circular cone base (1) is provided with flowline (11).

8. multi-stag eddy flow mist of oil according to claim 1 is handled retracting device, it is characterized in that the center of circular cone base (1) is provided with residue outlet (12), and two control valves (13) are connected in series on the residue outlet (12).

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