Dedusting washing tower

Abstract

The utility model relates to the technical field of gas dust removal equipment, in particular to a dust removal washing tower. The air inlet of the tower body is provided with the jet mixer, the jet mixer comprises the air inlet part, the middle part and the exhaust part which are sequentially connected, and the caliber of the air inlet part and the caliber of the exhaust part are both larger than the caliber of the middle part, so that the jet mixer forms a structure with a narrow middle part and two wide ends, and the structure can accelerate and push passing air to flow; gas and water flow are mixed more sufficiently, and dust particles are more easily captured by the water flow, so that the filtering and dust removing efficiency is remarkably improved; meanwhile, the staying time of the gas flowing at a high speed in the tower body can be shortened, the operation efficiency of the whole system is improved, the power of a fan can be reduced, and energy consumption is reduced; as the flow rate of the gas in the middle is increased, efficient gas-liquid mixing and dust removal effects can be realized in a smaller equipment size, so that the occupied area and the manufacturing cost of the equipment are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas dust removal equipment technical field especially relates to a dust removal scrubbing tower. BACKGROUND

[0002] In the processing and production of mining, metallurgy, building material and other industries, high-temperature (temperature can be as high as 80~100 DEG C) gas containing dust is often discharged, and dust pollution control needs to be installed dust removal scrubbing tower and other gas dust removal equipment. The dust removal scrubbing tower of prior art mainly includes tower body, fan, the water spin filter device is installed in the tower body, the tower body is provided with air inlet and air outlet, the airflow formed by the fan suction, the waste gas containing dust enters from the air inlet, is filtered through the water spin filter device, removes dust, purifies gas, then the purified gas is discharged from the air outlet, the structure of this dust removal scrubbing tower, the insufficient place lies in: only rely on the fan suction to drive the gas flow, the flow velocity of gas is not fast enough, leads to the low filtration efficiency, and need to use the fan of larger power, so that the energy consumption is also higher. SUMMARY

[0003] The utility model discloses to the deficiency of prior art and provides a dust removal scrubbing tower, through accelerating the flow velocity of gas, thereby improve filtration efficiency, also save energy consumption simultaneously.

[0004] The utility model discloses the purpose through the following technical measures realizes:

[0005] A dust removal scrubbing tower, including tower body, the water spin filter device is arranged in the tower body, the tower body is provided with air inlet and air outlet, the air inlet of tower body is connected with the jet flow mixer, the jet flow mixer includes the air inlet, the intermediate portion, the exhaust portion that connect gradually, the air inlet's caliber, the caliber of exhaust portion all are greater than the caliber of intermediate portion, be provided with the spray set in the air inlet for the high-speed water flow of injection, the air outlet of tower body is connected with the fan.

[0006] Further, the water cyclone filtering device comprises a water tank, a separation assembly and a flow guide assembly, the water tank is located at the bottom of the tower body, the separation assembly is installed at the air inlet of the tower body, the separation assembly comprises an upper separation part in the shape of a "Y" and a lower separation part in the shape of an inverted "L", the upper separation part comprises a first baffle and a second baffle, the second baffle comprises a vertical baffle and a first inclined baffle located at the bottom end of the vertical baffle, the lower separation part comprises a second inclined baffle and a third inclined baffle located at the bottom end of the second inclined baffle, the second inclined baffle is located between the first baffle and the second baffle, wherein the air inlet of the tower body and the second baffle form a first sinking channel, the second baffle and the lower separation part form an upward channel, the lower separation part and the first baffle form a second sinking channel, and the bottom end of the first baffle and the liquid surface in the water tank form an outlet channel, and the flow guide assembly is installed above the outlet channel.

[0007] Further, the fan comprises an air inlet pipeline and an air outlet pipeline, the air inlet pipeline of the fan is connected with the air outlet of the tower body, the air outlet pipeline of the fan is connected with a water-gas separator, the water-gas separator comprises a horizontal air inlet pipeline and a vertical barrel body, the horizontal air inlet pipeline is connected with the vertical barrel body in a tangent line mode, and the bottom of the vertical barrel body is provided with a water outlet.

[0008] Further, the flow guide assembly comprises a first flow guide plate, a second flow guide plate and a third flow guide plate, and the first flow guide plate, the second flow guide plate and the third flow guide plate are installed in a sequentially inclined mode from bottom to top.

[0009] Further, the side edge of the tower body is provided with an overflow device, the overflow device comprises a movable overflow weir for controlling the position of the liquid surface in the water tank and a filter tank for filtering floating impurities, and the filter tank is provided with a filter plate in a tilted mode, and the filter plate is a movable grating plate.

[0010] Further, the bottom end of the first inclined baffle is in the shape of a tooth.

[0011] Further, the bottom of the spraying device is provided with a spiral spray head.

[0012] Further, the tower body is provided with a plurality of observation openings.

[0013] Further, the exhaust part of the jet flow mixer is connected with the air inlet of the tower body through a pipeline, and the bottom of the water tank is provided with a water outlet.

[0014] The utility model has the advantages of:

[0015] The utility model discloses a tower body's air inlet is equipped with the jet mixer, and the jet mixer includes the air inlet portion, the intermediate portion, the exhaust portion that connect gradually, the caliber of air inlet portion, the caliber of exhaust portion all are greater than the caliber of intermediate portion, make the jet mixer form the structure of narrow in the middle and wide in both ends, when the dust-containing high temperature gas enters, this narrow in the middle and wide in both ends structure can accelerate the gas flow of pushing through. Through accelerating gas flow, the mixture of gas and water flow is more sufficient, and dust particle is easier to be captured by water flow, thereby significantly improve the filtration dust removal efficiency, simultaneously, the gas of high -speed flow can reduce the residence time in the tower body, improve the operation efficiency of whole system, can reduce the power of fan, save energy consumption, because the flow velocity of gas in the middle increases, can realize efficient gas -liquid mixing and dust removal effect in smaller equipment size, thereby reduce the floor area and manufacturing cost of equipment. The dust removal washing tower of the utility model can be applied to the dust removal and purification filtration of the following industries: PCB board baking, casting, metallurgy, building material processing and the like, aluminum powder polishing, machine tool processing, paint spraying purification dust removal and the like, the dust generated in stone processing and various kinds of explosion -proof dust. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the cross section structure schematic view of the side direction of the utility model;

[0017] Figure 2 It is Figure 1 It is the air flow direction schematic view of the utility model;

[0018] Figure 3 It is the structure schematic view of the top direction of the utility model;

[0019] Figure 4 It is the cross section structure schematic view of the side direction of the filter pool of the utility model;

[0020] Figure 5 It is the structure schematic view of the side direction of the water gas separator of the utility model;

[0021] Figure 6 It is the structure schematic view of the top direction of the water gas separator of the utility model;

[0022] Figure 7 It is the structure schematic view of the first inclined baffle of the utility model.

[0023] BRIEF DESCRIPTION OF DRAWINGS:

[0024] Tower body 1,

[0025] Air inlet portion 21, intermediate portion 22, exhaust portion 23, spray device 24,

[0026] Fan 3, air inlet pipeline 31, air outlet pipeline 32,

[0027] Water tank 41, first partition 42, vertical partition 43, first inclined partition 44, second inclined partition 45, third inclined partition 46, drain 47,

[0028] First sinking channel 51, rising channel 52, second sinking channel 53,

[0029] First guide plate 61, second guide plate 62, third guide plate 63,

[0030] Horizontal air inlet pipe 71, vertical barrel 72, water outlet 73,

[0031] Movable overflow weir 81, filter tank 82, filter plate 83,

[0032] Water level line 9. DETAILED DESCRIPTION

[0033] In order to describe the technical scheme of the utility model in detail, the technical scheme of the utility model embodiment will be described clearly and completely by combining the drawings of the utility model embodiment. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0034] Please refer to Figures 1 to 7 The dust removal washing tower of the utility model, including tower body 1, water rotation filtering device is arranged in tower body 1. Tower body 1 is provided with air inlet and air outlet, and the air outlet of tower body 1 is connected with fan 3.

[0035] The air inlet of tower body 1 is connected with jet mixer, and the jet mixer includes air inlet portion 21, intermediate portion 22 and air outlet portion 23 connected in sequence, the caliber of air inlet portion 21 and the caliber of air outlet portion 23 are all greater than the caliber of intermediate portion 22, and spray device 24 for spraying high-speed water flow is arranged in air inlet portion 21. The structure of the jet mixer, which is narrow in the middle and wide at both ends, can accelerate the flow of the passing gas. Preferably, the ratio of the caliber of air inlet portion 21, the caliber of intermediate portion 22 and the caliber of air outlet portion 23 is 35:25:35 in sequence, which can better realize the acceleration of airflow. The air outlet portion 23 of the jet mixer is connected with the air inlet of tower body 1 through pipeline, and the connecting pipeline is preferably 4-way elbow connecting pipe, so that the gas-liquid mixture treated by the jet mixer can better enter tower body 1. The bottom of water tank 41 is provided with drain 47 for draining sewage.

[0036] When the dust-containing high-temperature gas (i.e. waste gas) enters, the gas is pre-cooled and the dust therein is pre-wetted under the action of the high-speed water jet; so that under the action of the subsequent high-speed rotating water flow, the dust particles are fully immersed and captured into the water body. Moreover, the intermediate narrow and two-end wide structure of the jet mixer can accelerate the flow of the passing gas; at the same time, due to the high-speed water flow sprayed by the spraying device 24, the water flow and the gas are fully mixed to form a gas-liquid mixture. This mixing method can effectively increase the contact area of the gas and the liquid, increase the collision probability of the dust particles and the water flow, and significantly improve the dust removal efficiency. Moreover, through the pretreatment of the jet mixer, the large particle dust in the waste gas can be captured and preliminarily settled by the water flow, reducing the dust load and processing pressure of the subsequent water rotation filter device, prolonging the service life of the equipment. Further, the design of the jet mixer can make the gas flow more uniformly distributed, avoiding the local impact or deflection phenomenon of the gas flow when entering, improving the operation stability of the entire dust removal and washing tower. Also, the structure of the jet mixer is simple, convenient to install, maintain, etc.

[0037] In the present embodiment, the water rotation filter device comprises a water tank 41, a separation assembly, and a flow guide assembly, the water tank 41 is located at the bottom of the tower body, Figure 2 The dotted line of the middle water tank 41 is the water level line 9, which is used to indicate the approximate position of the water level. As Figure 1 shown, the separation assembly is installed at the air inlet of the tower body 1, specifically, the separation assembly comprises an upper separation part in the shape of "Y" and a lower separation part in the shape of inverted "L". The upper separation part comprises a first baffle 42 and a second baffle. The first baffle 42 comprises an obliquely installed main plate block, and the tail end of the main plate block is installed with a tail plate which is more obliquely downward, this structure makes the first baffle 42 form a cover body at the upper part. The second baffle comprises a vertical baffle 43 and a first inclined baffle 44 located at the bottom end of the vertical baffle 43, the lower separation part comprises a second inclined baffle 45 and a third inclined baffle 46 located at the bottom end of the second inclined baffle 45, and the second inclined baffle 45 is located between the first baffle 42 and the second baffle. As Figure 2 shown (the dotted line with arrows in the figure indicates the flow direction of the gas flow), the first sinking channel 51 is formed between the air inlet of the tower body 1 and the second baffle, the rising channel 52 is formed between the second baffle and the lower separation part, the second sinking channel 53 is formed between the lower separation part and the first baffle, and the outlet channel is formed between the bottom end of the first baffle and the liquid surface in the water tank; the flow guide assembly is installed above the outlet channel.

[0038] The water cyclone filter device with the above structure divides the space in the tower body 1 into multiple channels, so that the gas-liquid mixture treated by the jet mixer must go through the sinking and rising process of these channels after entering the tower body 1. In this process, the dust particles are in full contact with the water flow, captured by the water flow and settled in the water tank. This multi-stage filtering and separating design can effectively improve the dust removal efficiency and ensure that the discharged gas meets the environmental protection emission standard. Further, such design makes the water flow form a cyclone in the water tank 41, further increasing the contact time of dust particles with the water flow and improving the dust removal effect. At the same time, the design of cyclone can make the water flow more uniformly distributed, avoiding the local stagnation or deflection of water flow in the water tank 41, improving the operation efficiency of the equipment; the design of the isolation assembly can effectively prevent the dust particles settled in the water tank 41 from being re-voluted by the air flow, avoiding the occurrence of secondary dust raising phenomenon, further improving the dust removal effect.

[0039] In the present embodiment, the fan 3 includes an air inlet pipe 31 and an air outlet pipe 32. The air inlet pipe 31 of the fan 3 is connected with the air outlet of the tower body 1, and the air outlet pipe 32 of the fan 3 is connected with a water-gas separator. As shown in Figure 5 and Figure 6 The water-gas separator includes a horizontal air inlet pipe 71 and a vertical barrel 72. The horizontal air inlet pipe 71 is tangentially connected with the vertical barrel 72, and the bottom of the vertical barrel 72 is provided with a water outlet 73. This design makes the gas entering the water-gas separator rotate along the inside of the vertical barrel 72 under the action of centrifugal force. The heavier water vapor condenses into water droplets and then falls, and is discharged from the water outlet 73. The separated lighter gas is discharged from above the vertical barrel 72. This water-gas separation design can effectively ensure the dryness of the discharged gas and avoid affecting the subsequent equipment or environment. Further, the water separated by the water-gas separator can reduce the water content in the gas and reduce the corrosion risk of the equipment due to the humid environment during operation, prolonging the service life of the equipment.

[0040] In the embodiment, the flow guide assembly comprises a first flow guide plate 61, a second flow guide plate 62 and a third flow guide plate 63, and the first flow guide plate 61, the second flow guide plate 62 and the third flow guide plate 63 are sequentially and obliquely arranged from bottom to top. The design of the structure can effectively guide the direction of the airflow, so that the airflow can be more smoothly discharged from the tower body after passing through the water cyclone filter device. Further, the obliquely arranged flow guide plates can reduce the resistance of the airflow, improve the flow efficiency of the airflow and reduce the energy consumption of the equipment. Meanwhile, the design can effectively prevent the airflow from flowing back in the tower body, ensure the one-way flow of the airflow, further improve the dust removal effect, avoid the mixing of the purified gas and the un-purified gas, and improve the operation stability of the equipment. In addition, the flow guide assembly can further separate the moisture in the airflow while guiding the airflow, and the oblique flow guide plates can make the moisture slide down under the action of gravity, further improving the water-gas separation effect.

[0041] Preferably, the side plates, the bottom plate and the internal partition plates of the utility model are all formed by bending stainless steel plates and connecting them by bolts, which can ensure the structural strength of the equipment, is easier to ensure the manufacturing precision of the equipment compared with welding, and can reduce the thermal stress deformation in the manufacturing process of the equipment. In order to ensure the sealing effect, sponge rubber strips with adhesive are pasted between the modularly manufactured steel plates, and the equipment will not leak, overflow dust and other phenomena during use.

[0042] In the embodiment, the side edges of the tower body are provided with overflow devices, and the overflow devices comprise movable overflow weirs 81 for controlling the liquid level position in the water tank and filter pools 82 for filtering floating impurities. The movable overflow weirs 81 in the overflow devices can effectively control the liquid level position in the water tank 41, ensure that the water level in the water tank 41 is kept within a reasonable range, avoid the water level in the water tank 41 being too high or too low, and affect the normal operation of the equipment. The dust removal and washing tower of the utility model can also be provided with an automatic water replenishing device. When the machine is operated for a long time, the water will be evaporated, the water level will be lowered, and the automatic water replenishing device will automatically replenish water.

[0043] The filter pool 82 is obliquely provided with a filter plate 83, and the filter plate 83 is made of a porous material. The filter plate 83 in the filter pool 82 can effectively filter the floating impurities in the water tank 41, prevent the impurities from entering the subsequent equipment or pipelines and causing blockage or pollution. The filter plate 83 is a movable grating plate, which adopts a pulling structure, as shown by the arrow in Figure 4 , the filter plate 83 can be obliquely inserted and installed or obliquely pulled out for cleaning or maintenance. The filter design can further improve the operation efficiency of the equipment and reduce the maintenance cost of the equipment.

[0044] In the embodiment, as shown in Figure 7As shown, the bottom end of the first inclined baffle 44 has a toothed structure. This design can further increase the contact area between the water flow and dust particles, improve the dust particle capture efficiency, and the toothed structure can make the water flow turbulent, increase the disturbance of the water flow, and further improve the dust removal effect.

[0045] Furthermore, such as Figure 1 As shown, the bottom of the spray device 24 is equipped with a spiral nozzle, which sprays a spiral high-speed water stream. When the dust-laden, high-temperature gas enters, it is rapidly atomized into fine water mist under the action of the high-speed water stream and evenly adheres to the dust. This facilitates the self-aggregation of the dust and rapidly cools the gas, further improving the treatment efficiency of the dust-laden gas. The tower body 1 is equipped with several observation ports to allow operators to easily observe the internal working conditions of the equipment.

[0046] This utility model's dust removal and scrubbing tower can effectively remove various fine dust particles with high purification efficiency. It can be widely used for dust pollution control in the following industries: PCB board baking, casting, metallurgy, building materials processing, aluminum powder grinding, machine tool processing, painting, etc.; dust generated in stone processing; and various types of explosion-proof dust. It can also significantly improve the air quality of the working environment, reduce the harm of dust emissions to the atmospheric environment, and has a relatively compact structure, holding an important position and broad application prospects in the field of industrial environmental protection.

[0047] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model shall fall within the scope of protection of this utility model.

Claims

1. A dust removal washing tower, comprising a tower body, a water cyclone filtering device arranged in the tower body, an air inlet and an air outlet of the tower body, characterized in that: the air inlet of the tower body is connected with a jet flow mixer, the jet flow mixer comprises a gas inlet part, an intermediate part and a gas outlet part connected in sequence, the caliber of the gas inlet part and the caliber of the gas outlet part are both larger than the caliber of the intermediate part, and the gas inlet part is provided with a spraying device for spraying high-speed water flow; the air outlet of the tower body is connected with a fan. The water cyclone filtering device comprises a water tank, a separation assembly and a flow guide assembly, and the water tank is located at the bottom of the tower body. The separation assembly is installed at the air inlet of the tower body, and the separation assembly comprises an upper separation part in the shape of a "Y" and a lower separation part in the shape of an inverted "L", the upper separation part comprises a first separation plate and a second separation plate, the second separation plate comprises a vertical separation plate and a first inclined separation plate located at the bottom end of the vertical separation plate, the lower separation part comprises a second inclined separation plate and a third inclined separation plate located at the bottom end of the second inclined separation plate, and the second inclined separation plate is located between the first separation plate and the second separation plate, wherein the air inlet of the tower body and the second separation plate form a first sinking channel, the second separation plate and the lower separation part form an upward channel, the lower separation part and the first separation plate form a second sinking channel, and the bottom end of the first separation plate and the liquid surface in the water tank form an outlet channel.

2. A dust scrubbing tower according to claim 1, characterized in that: The flow guide assembly is installed above the outlet channel. The fan comprises an air inlet pipeline and an air outlet pipeline, the air inlet pipeline of the fan is connected with the air outlet of the tower body, the air outlet pipeline of the fan is connected with a water-gas separator, the water-gas separator comprises a horizontal air inlet pipeline and a vertical barrel, the horizontal air inlet pipeline is connected with the vertical barrel in a tangent line, and the bottom of the vertical barrel is provided with a water outlet. The flow guide assembly comprises a first flow guide plate, a second flow guide plate and a third flow guide plate, and the first flow guide plate, the second flow guide plate and the third flow guide plate are installed in a downward and upward sequence.

3. A dust scrubbing tower according to claim 1 or 2, characterised in that: The side edge of the tower body is provided with an overflow device, the overflow device comprises a movable overflow weir for controlling the position of the liquid surface in the water tank and a filter tank for filtering floating impurities, and the filter tank is provided with a filter plate in a tilt manner, and the filter plate is a movable grating plate.

4. A dust scrubbing tower according to claim 2, characterized in that: The bottom end of the first inclined separation plate is in a toothed structure.

5. A dust scrubbing tower according to claim 1 or 2, characterised in that: The bottom of the spraying device is provided with a spiral spray head.

6. A dust scrubbing tower according to claim 2 or 4, characterised in that: The tower body is provided with a plurality of observation ports.

7. A dust scrubbing tower according to claim 1, 2 or 4, characterised in that: The gas outlet part of the jet flow mixer is connected with the air inlet of the tower body through a pipeline, and the bottom of the water tank is provided with a drain.

8. A dust scrubbing tower according to claim 1, 2 or 4, characterised in that: ​ 9. A dust scrubbing tower according to claim 2 or 4, wherein: ​

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