Noise reduction type oil bath type air dust removal and purification equipment

Abstract

The utility model discloses noise reduction type oil bath air dust removal purification equipment, which comprises a flow collecting cover, an axial flow fan, a flow collecting pipe, an upper cover, a hoop, a filter bag, an exhaust pipe, a cylinder body, a filter element, a middle spacer ring and a baffle plate, the axial flow fan is arranged on the inner side of the flow collecting cover, the right upper end of the flow collecting pipe is connected with the flow collecting cover, and an inclined opening at the left lower end of the flow collecting pipe extends into the cylinder body and abuts against the middle spacer ring; the side surface of the filter element is movably connected with the wall of the barrel; the upper cover is sleeved above the barrel, the exhaust pipe is sleeved on the upper cover, one end of the exhaust pipe extends into the inner cavity, and the other end of the exhaust pipe is externally arranged and is sleeved with the filter bag through a hoop; the filter material of the filter element is cobblestone broken stone and quartz sand coarse sand, noise reduction and reverse osmosis are facilitated, and the filter element is of a hollow conical structure, so that oil collection and oil discharge are facilitated; the filter material of the filter bag is chicken feather, so that the oil absorbency is good and the filter precision is high. The device is high in filtering efficiency, good in noise reduction effect and capable of effectively reducing the dust concentration of a production place and avoiding fire safety accidents caused by dust particles; dust particles inhaled by on-site workers are reduced, and noise interference is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air dust removal technical field, concretely relates to a noise reduction type oil bath air dust removal and purification equipment. BACKGROUND

[0002] At present, in flour, cement production and other places, under the high dust concentration environment in the air, the general dust removal device is mostly silk screen type secondary dust removal, or paper and fiber material filtration. The silk screen type secondary dust removal has small dust collection area and can only filter larger dust, causing fine dust to return to the air again. The paper and fiber material filtration is easy to be blocked by dust particle accumulation, especially the sticky dust particles such as flour particles and cement particles are easy to stick and agglomerate, which is difficult to clean and needs to be replaced frequently. The phenomenon increases the labor intensity of workers.

[0003] In view of the defects of the above dry dust removal equipment, the related working conditions have begun to use oil bath type air filter. The oil bath type air filter usually sucks air from the tangent direction into the circular cylinder through the external fan, uses the drainage effect of the circular cylinder to make the air rotate at high speed, and the dust particles in the airflow are separated out by the centrifugal force and thrown to the cylinder wall. Then the airflow sweeps over the oil surface, the oil surface produces fluctuation, generates spray, forms oil mist, and the oil mist is rotated and thrown to the cylinder wall by the airflow, adheres to the inner cylinder wall to form an oil film, and the dust particles in the airflow are captured by the oil film. The oil film returns along the wall surface to become a drooping oil curtain, which washes the dust captured by the oil film on the cylinder wall to the bottom of the cylinder and generates a new oil film. The air is subjected to oil bath, and part of the dust particles are captured. The separated airflow passes through the filter element to filter out the remaining dust particles and oil droplets, achieving the purpose of filtering clean air. The residual dust particles in the separated airflow have fully contacted with the oil mist to form an oil film, which loses the adhesion and avoids sticking to the filter element and agglomeration.

[0004] Although the oil bath can separate part of the dust particles, the spray in the oil mist can prevent the dust particles from sticking to the filter element. However, too much spray gathered in the filter element will cause the filter element to be blocked. Therefore, the filter element of the oil bath type air filter usually adopts a steel wire mesh structure, which uses the reverse osmosis function of the steel wire mesh to reverse osmosis excess oil and avoid the filter element from being blocked. Although the steel wire mesh has the reverse osmosis function, the internal oil stains are also difficult to wash, and too much oil stain will also cause blockage. Especially when the oil is insufficient, the dry filter is easy to stick and agglomerate, which not only causes blockage, but also is difficult to clean. The oil bath type air filter needs an external fan to send air to generate cyclone, and the noise generated in the process is a problem to be solved. How to remove the residual oil mist when exhausting is also a problem to be solved. How to reduce the energy consumption of the motor of the driving fan is also a problem to be solved. UTILITY MODEL CONTENTS

[0005] The utility model provides a more economic and environmental protection's noise reduction type oil bath type air dust removal and purification equipment.

[0006] The utility model discloses a noise reduction type oil bath type air dust removal and purification equipment, include: the flow collecting cover, axial flow fan, the flow collecting pipe, the upper cover, the clamp hoop, the filter bag, the exhaust pipe, the cylinder, the filter core, the partition ring, the baffle, the axial flow fan sleeve is connected in the flow collecting cover big end inside, the flow collecting pipe right upper end is connected in the flow collecting cover small end, and the left lower end is oblique and enters the cylinder right lower side, and the left end leans against the partition ring, and the flow collecting pipe oblique rear side is close to the baffle, and the baffle one end is connected the cylinder, and the other end is connected the partition ring, and the partition ring is in the cylinder, and the lower end is connected with the cylinder bottom center, and forms annular cavity, the filter core is located the partition ring top, and the upper cover below, and the side surface with the cylinder wall movable connection, the upper cover sleeve is connected in the cylinder top, and the exhaust pipe sleeve is connected in the upper cover middle hole one end and enters the oil bath type dust removal equipment inner chamber, and the other end is external, passes through the clamp hoop sleeve filter bag.

[0007] The flow collecting cover is a size head funnel structure.

[0008] The flow collecting pipe is Z-shaped elbow pipe, and the right upper end is flat, and the left lower end is oblique.

[0009] The filter core is hollow conical structure, and the taper end is downward, and includes: the upper baffle, the side baffle, the middle baffle, the lower baffle, the pebble filler, the quartz sand filler, the lower baffle is fixedly connected with the side baffle, and the upper baffle and the middle baffle are movably connected with the side baffle, the pebble filler is filled between the middle baffle and the lower baffle, and the quartz sand filler is filled between the upper baffle and the lower baffle.

[0010] The filter bag is glass fiber filter bag, and is filled with chicken feather inside.

[0011] The lower end of the partition ring is cylindrical, and is connected in the cylinder bottom center, and the cylinder is separated into inner and outer cavities, and the partition ring is provided with annular array oil holes below the oil surface, and the upper end is horn mouth.

[0012] The oil film is then drawn back along the wall of the cylinder to form an oil film, and the dust particles in the air flow are captured by the oil film, which flows back along the wall to form a drooping oil curtain, washing the dust captured by the oil film on the cylinder wall to the bottom of the cylinder and generating a new oil film, thereby realizing centrifugal separation and oil bathing air. When the air flow spirals up and passes through the bell mouth at the upper end of the septum ring, the cross-sectional area gradually decreases to generate concentrated flow, thereby improving the centrifugal separation effect. At the same time, the oil mist generation efficiency and centrifugal separation efficiency are improved, and the fan power can be effectively reduced. The airflow after centrifugal separation is filtered by the filter element, enters the filter bag through the exhaust pipe, and is discharged after fine filtration.

[0013] The utility model generates noise during the two cyclone generation processes and the two flow collection processes. This noise causes the oil bath air filter to vibrate, driving the filter element to vibrate. The pebbles and gravel fillers and the quartz sand and coarse sand fillers collide and rub against each other during the vibration process, converting the vibration into heat energy. The loose and porous structure of the pebbles and gravel fillers and the quartz sand and coarse sand fillers also facilitates resonance noise reduction. During the vibration process, the oil collected in the pores of the pebbles and gravel and the quartz sand and coarse sand is stretched and squeezed, accelerating the reverse osmosis rate. The gravity-gathering effect of the hollow conical structure of the filter element gathers the oil in the filter material at the lower cone end. As the reverse osmosis oil gathers toward the lower cone end, the filter material decreases, accelerating the reverse osmosis rate. The accumulated reverse osmosis oil drips into the inner cavity under the action of gravity. The oil hole Q is higher than the bottom, preventing precipitation from seeping into the outer cavity and affecting the cleanliness of the oil mist. The pebbles and gravel fillers and the quartz sand and coarse sand fillers are thoroughly cleaned, leaving little oil stain and being unaffected by adhesion and agglomeration, enabling dry filtration in a short time. Pebbles, gravel, and quartz sand are widely available and inexpensive, even serving as disposable filter media. Residual dust particles that pass through the filter element have already been exposed to the oil bath and, upon entering the filter bag, have lost their adhesiveness, effectively preventing clogging. The chicken feathers within the bag absorb any remaining oil mist, effectively preventing leakage.

[0014] The filter element of this utility model uses cobblestone gravel filler and quartz sand coarse sand filler, and optimizes and improves the relevant structure to provide a more economical, environmentally friendly and safe production of a noise-reducing oil bath air dust removal and purification equipment. Compared with the existing technology, the utility model has the following technical effects:

[0015] 1. The filter element of this utility model has built-in pebble gravel filler and quartz sand coarse sand filler, which has both resonance noise reduction and friction noise reduction functions, has good noise reduction effect, and can effectively reduce noise pollution in the workplace.

[0016] 2、The filter material of the filter core is cobblestone and quartz sand, and the hollow conical structure of the filter core is beneficial to oil collection and oil discharge, has good anti-blocking effect, can effectively reduce the maintenance frequency, and saves manpower; the filter material of the filter bag is chicken feather, has good oil absorption and high filtering precision, can effectively avoid residual oil mist leakage and cause secondary pollution.

[0017] 3、The filter material of the utility model is low in cost, wide in source, and does not cause secondary pollution, and is economic and environment-friendly.

[0018] 4、The cobblestone filler and the quartz sand filler of the utility model are thoroughly cleaned, and even can be used as disposable filter material, are not affected by adhesion and caking, and can be dried and filtered in a short time.

[0019] 5、The filter bag of the utility model is a glass fiber filter bag, is resistant to aging and acid and alkali, can be cleaned multiple times, is used for a long time, and effectively reduces industrial solid waste generated by discarded filter bags.

[0020] 6、The baffle of the utility model blocks airflow after abutting the inclined mouth of the flow collecting pipe, increases the pressure difference on both sides, increases the cyclone airflow, and collects the airflow through the horn mouth on the upper end of the middle partition ring, and improves the centrifugal separation effect.

[0021] 7、The inclined mouth of the flow collecting pipe is located at the gas-liquid intersection, and the cyclone from the axial flow fan generates lateral cyclone at the inclined mouth, forms turbulent flow, stirs the oil surface to generate foam, and improves the oil mist generation efficiency.

[0022] 8、The utility model has high oil mist generation efficiency and good centrifugal separation effect, and can effectively reduce the energy consumption of the fan.

[0023] 9、The utility model has high filtering efficiency and good dust removal effect, can effectively reduce the dust concentration in the air of the production site, purify the air, avoid fire safety accidents caused by dust particles, reduce the dust particles inhaled by the on-site workers, avoid causing respiratory tract damage, and protect the health.

[0024] 10、The utility model has wide application range, is not only suitable for flour production and cement production sites, but also suitable for other working sites with high dust concentration in the air. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model structural schematic diagram;

[0026] Figure 2 The utility model cross section schematic diagram;

[0027] Figure 3 The utility model filter core structure schematic diagram. DETAILED DESCRIPTION

[0028] As Figure 1 ,Figure 2 、 Figure 3 As shown in FIG. 1, a noise reduction oil bath air dust removal and purification equipment comprises a flow collector 1, an axial flow fan 2, a flow collector pipe 3, an upper cover 4, a clamp 5, a filter bag 6, an exhaust pipe 7, a cylinder 8, a filter core 9, a middle separation ring 10, and a baffle 11. The axial flow fan 2 is sleeved on the inner side of the large end of the flow collector 1. The upper right end of the flow collector pipe 3 is connected to the small end of the flow collector 1. The lower left end of the flow collector pipe 3 is obliquely connected to the lower right side of the cylinder 8. The left end of the flow collector pipe 3 abuts against the middle separation ring 10. The oblique lower side of the flow collector pipe 3 is immersed in the oil surface T. The rear side of the oblique opening P abuts against the baffle 11. One end of the baffle 11 is connected to the cylinder 8, and the other end is connected to the middle separation ring 10. The middle separation ring 10 is located in the cylinder 8 and is connected to the bottom of the cylinder 8 in a central manner to form an annular cavity. The filter core 9 is located above the middle separation ring 10 and below the upper cover 4 and is movably connected to the cylinder wall of the cylinder 8. The upper cover 4 is sleeved on the upper part of the cylinder 8. The exhaust pipe 7 is sleeved on the middle hole of the upper cover 4 and extends into the inner cavity of the oil bath dust removal equipment at one end and is externally connected at the other end. The filter bag 6 is sleeved on the clamp 5.

[0029] The flow collector 1 is a size head funnel structure.

[0030] The flow collector pipe 3 is a Z-shaped bent pipe with a flat opening at the upper right end and an oblique opening at the lower left end.

[0031] The filter core 9 is a hollow conical structure with the tapered end facing downward and comprises an upper separation plate 8-1, a side separation plate 8-2, a middle separation plate 8-3, a lower separation plate 8-4, a cobblestone filler 8-5, and a quartz sand filler 8-6. The lower separation plate 8-4 is fixedly connected to the side separation plate 8-2. The upper separation plate 8-1 and the middle separation plate 8-3 are movably connected to the side separation plate 8-2. The cobblestone filler 8-5 is filled between the middle separation plate 8-3 and the lower separation plate 8-4. The quartz sand filler 8-6 is filled between the upper separation plate 8-1 and the lower separation plate 8-4.

[0032] The filter bag 6 is a glass fiber filter bag filled with chicken feathers to absorb residual oil mist.

[0033] The lower end of the middle separation ring 10 is a cylinder connected to the bottom of the cylinder 8 in a central manner to separate the cylinder 8 into an inner cavity and an outer cavity. The middle separation ring 10 is provided with an annular array of oil passing holes Q below the oil surface T and a horn-shaped opening at the upper end.

Claims

1. A noise-reducing oil bath type air dust removal and purification device, comprising: The air collector, the axial flow fan, the air collector pipe, the upper cover, the hoop, the filter bag, the exhaust pipe, the cylinder, the filter core, the partition ring and the baffle are arranged in the air collector, the air collector pipe is connected with the small end of the air collector, the left lower end of the air collector pipe is obliquely inserted into the cylinder and abuts against the partition ring, the filter core is movably connected with the cylinder, the upper cover is arranged above the cylinder, the exhaust pipe is arranged in the upper cover and extends into the oil bath type air filter, the filter bag is sleeved with the hoop, and the filter bag is arranged outside the exhaust pipe.

2. The oil-bath type air dust cleaning device according to claim 1, characterized in that: The air collector pipe is a Z-shaped bent pipe, the right upper end of the air collector pipe is flat, and the left lower end of the air collector pipe is oblique.

3. The noise-reducing oil bath air cleaning device according to claim 1 or 2, characterized in that: The filter core is a hollow conical structure, which comprises an upper partition plate, a side partition plate, a middle partition plate, a lower partition plate, cobblestone filler and quartz sand filler, the lower partition plate is fixedly connected with the side partition plate, the upper partition plate and the middle partition plate are movably connected with the side partition plate, the cobblestone filler is filled between the middle partition plate and the lower partition plate, and the quartz sand filler is filled between the upper partition plate and the lower partition plate.

4. The oil-bath type air cleaning device according to claim 3, wherein: The filter bag is a glass fiber filter bag, and the inside of the filter bag is filled with chicken feathers.

5. The noise-reducing oil-bath air cleaning device of claim 4, wherein: The lower end of the partition ring is a cylinder, the partition ring is centrally connected with the bottom of the cylinder, the partition ring is provided with annular array oil holes below the oil surface, and the upper end of the partition ring is a horn mouth.

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