CN219186348U - Anti-blocking rosin dust multilayer filter - Google Patents

Abstract

The utility model discloses an anti-blocking rosin dust multilayer filter, which comprises a dust absorption module, a multilayer filter bed dust removal module and a shell arranged outside the multilayer filter bed dust removal module; the dust absorption module comprises a cooling fan and a guide fan cover, wherein the cooling fan is fixedly arranged at the top of the guide fan cover, the bottom of the guide fan cover is communicated with the multi-layer filter bed dust removal module, an air distribution plate is arranged at the bottom of the multi-layer filter bed dust removal module, a bottom plate is connected to the air distribution plate, and an opening and closing mechanism is arranged on the bottom plate. The utility model utilizes the coanda effect, can achieve the effects of high efficiency, difficult blockage and multi-layer filtration, and can effectively reduce rosin dust generated in the production process.

Description

Anti-blocking rosin dust multilayer filter

Technical Field

The utility model relates to the technical field of filters, in particular to a multi-layer filter for preventing rosin dust from being blocked.

Background

Rosin is the main material for producing rubber and disproportionated potassium abietate soap, wherein the crushing and melting of rosin are important procedures of the device. During the crushing and transportation of rosin, a large amount of rosin dust is easily generated and is diffused into the air environment. The chemical components of industrial rosin often contain toxic compounds and some heavy metals such as lead, and peroxide generated after oxidation has high toxicity to the air environment and to the health of monitoring workers. Therefore, the excessive rosin dust is an urgent problem to be solved in the production process.

Because the construction space is larger, rosin dust is difficult to collect, and a spray dust removing method and a filter cartridge dust removing method are adopted in the traditional rosin dust treatment method. The filter cartridge dust removing method has the advantages that the filter layer of the internal fan is easy to block, equipment is easy to corrode and has large volume, the service life is greatly reduced, dust at too high temperature cannot be treated by the equipment, and the large-area popularization is not realized. The spraying method sprays a large amount of high-multiple foam to the dust source by adding the foam agent, wherein after the liquid forms the foam, the total volume and the surface area are greatly increased, so that the collision probability with the dust is greatly improved. The foam dust removal method can cover dust in a large area, so that the dust is prevented from diffusing outwards fundamentally, and the dust suppression effect is obvious. However, the cost of the foaming agent and the equipment of the dust fall system and the foaming agent are high, which affects the popularization and application of the equipment to a certain extent. Therefore, the device is designed to be an efficient and difficult-to-block multilayer filtering device for collecting and treating rosin dust.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the anti-blocking rosin dust multilayer filter, which can achieve the effects of high efficiency, difficult blocking and multilayer filtration and can effectively reduce rosin dust generated in the production process.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the anti-blocking rosin dust multi-layer filter comprises a dust absorption module, a multi-layer filter bed dust removal module and a shell arranged outside the multi-layer filter bed dust removal module; the dust absorption module comprises a cooling fan and a guide fan cover, wherein the cooling fan is fixedly arranged at the top of the guide fan cover, the bottom of the guide fan cover is communicated with the multi-layer filter bed dust removal module, an air distribution plate is arranged at the bottom of the multi-layer filter bed dust removal module, a bottom plate is connected to the air distribution plate, and an opening and closing mechanism is arranged on the bottom plate.

Further, the multi-layer filter bed dedusting module comprises a plurality of filter beds which are sequentially connected from top to bottom, each filter bed is connected with the other filter beds through a central shaft arranged in the middle, each filter bed comprises an upper layer of filter material, a lower layer of filter material, a guide plate and a settling chamber, the double-layer filter material is arranged at the bottom of the guide plate and forms the settling chamber between the guide plate, and the settling chamber is connected with the shell and is used for collecting dust when the shell is reversely blown.

Further, a one-way valve is arranged between the bottom of the diversion fan cover and the multi-layer filter bed dust removal module.

Further, the check valve comprises a check valve shell, a valve body, a compression spring, an upper gasket and a lower gasket, wherein the top of the valve body is connected with the upper gasket, and the bottom of the valve body is sequentially connected with the compression spring and the lower gasket.

Further, an exhaust port is arranged in the middle of the opening and closing mechanism, and the exhaust port is communicated with the bottommost filter bed.

Further, the diversion fan cover is an arc-shaped curved surface.

Further, the dust absorption module air inlet is provided with a pore plate.

Further, a dust guide plate is arranged at the inlet of the settling chamber in the filter bed.

Further, the filter material adopts glass fiber composite filter material.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the coanda effect is utilized to effectively collect the dispersed rosin dust in a factory, and then the multi-layer filter bed is utilized to carry out step-by-step filtration treatment on the dust, and the rapid rotation of the fan is utilized to generate high-speed jet flow, so that the coanda effect is achieved, the effects of high efficiency, difficult blockage and multi-layer filtration can be achieved, and the rosin dust generated in the production process can be effectively reduced. When the filter bed is used for ash removal, the back-blowing valve is opened, back-blowing air flow enters the filter bed from bottom to top through the air distribution plate, and dust trapped during filtration is back-blown to the sedimentation chamber for sedimentation. Even when rosin dust and an emulsifier are coagulated, the coagulated small particles fall into a settling chamber together with the dust to settle. Compared with the traditional filter cylinder dust removing device, the dust removing device has the advantages that the problems of blockage, reduced filtering area and the like are avoided during ash removal. The frequency of replacing the filter screen can be doubled by the design.

Drawings

FIG. 1 is an overall schematic of the present utility model;

FIG. 2 is an internal schematic view of the body of the device of the present utility model;

FIG. 3 is a schematic diagram of a dust absorption module;

FIG. 4 is a schematic diagram of a one-way valve;

FIG. 5 is a schematic diagram of a multi-layered filter bed dedusting module;

FIG. 6 is a schematic view of a bottom opening and closing mechanism;

in the figure, the dust absorption module I, the dust removal module II, the multi-layer filter bed, the dust absorption mechanism 1, the filter bed 2, the one-way valve 3, the air distribution plate 4, the air guide cover 5, the fan 6, the one-way valve housing 7, the one-way valve body 8, the compression spring 9, the upper gasket 10, the lower gasket 11, the guide plate 12, the double-layer filter material 13, the central shaft 14, the air outlet 15, the base 16 and the opening and closing mechanism 17 are arranged.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

As shown in fig. 1, the device of the utility model comprises a dust absorption module i, a multi-layer filter bed dust removal module ii and a shell arranged outside the multi-layer filter bed dust removal module. The rosin dust anti-blocking multilayer filter can fall into the collecting device from the blanking port after the rosin is crushed in the previous process, and a large amount of dust can be generated under the action of surrounding wind power and air flow during the process, so that the dust concentration maximum value of the related production stations exceeds the standard. Therefore, the device is required to effectively collect the rosin dust dispersed in a factory by utilizing the coanda effect through the dust absorption module, and then the dust is subjected to step-by-step filtration treatment by means of the multi-layer filter bed.

As shown in fig. 2, the device of the present utility model comprises a dust absorbing mechanism 1, a plurality of filter beds 2, a one-way valve 3 and an air distribution plate 4. The dust absorbing mechanism 1 is positioned at the uppermost part of the device and is fixed with the main body part by four bolts and used for driving the whole device to collect and filter rosin dust. The filter bed 2 and the one-way valve 3 are in the center of the device as a core part of the whole module. The high-efficiency filtration of rosin dust can be achieved by using the coanda effect. The air distribution plate 4 is arranged below the filter bed.

As shown in fig. 3, the dust absorbing mechanism 1 includes a guide fan housing 5 and a cooling fan 6. The cooling fan 6 can generate high-speed jet flow by using the rapid rotation of the cooling fan, and the coanda effect is achieved. The diversion fan cover 5 is designed into an arc-shaped curved surface, so that the direction of gas flow can be changed. After the device starts to supply power, the cooling fan 6 runs at a high speed, and the atmosphere generates a certain negative pressure between the cooling fan 6 and the guide fan housing 5. The air containing rosin dust particles around the air is accelerated in flow speed by the rotation of the cooling fan 6, and the high-speed jet and the surrounding atmospheric air push the rosin dust particles to the curved surface. The direction of the dust air flow is changed from the original vertical direction from top to bottom to the curve direction along the cambered surface of the air guide cover, so that the high-speed air flow is concentrated in the middle part and flows into the opening of the lower multi-layer filter bed. And meanwhile, under the pressure difference effect of the atmospheric pressure and the negative pressure at the opening, air flow is generated in the device, dust air flow is sucked, and the dust is prevented from overflowing through continuous suction. The dust absorption module air inlet is added with a pore plate design. In view of the fact that rosin dust is difficult to collect and flow losses are easily caused in the pipeline. Therefore, the baffle plate can be designed, so that external air flow enters the flow channel from the circumferential ring surface, the air is smoothly transited and turned to 90 degrees through the circular arc tube to enter the axial flow channel, and then enters the multi-layer filter bed through the flow channel. The upper and lower wall surfaces of the runner are fixed by five supporting plates to reduce flow loss, the diversion fan cover 5 is designed into an arc-shaped curved pipeline which is connected with the filter bed through a axial pipeline, and the flow of dust gas can be accelerated by the design of the arc-shaped pipe and the axial pipeline, so that the efficiency is greatly improved.

As shown in fig. 4, the check valve mechanism is constituted by a check valve housing 7, a valve body 8, a compression spring 9, an upper gasket 10, and a lower gasket 11. After entering the one-way valve, the air containing rosin dust can only flow downwards from top to bottom under the action of the valve body, the compression spring 9, the upper gasket 10 and the lower gasket 11, the air pushes the valve body to compress the spring, the gasket can play the role of a stabilizing mechanism, and meanwhile, the part of the mechanism can also prevent the rosin dust flue gas entering the filter bed from flowing back, so that the flow loss is reduced.

The prior rosin dust filtering mode mainly adopts the following three methods, namely a filter cartridge dust removing method, a spray dust removing method and an electrostatic dust removing method. Wherein, filter cartridge inside fan filter layer is easy to block up, and equipment is easy to corrode, bulky, and life is shorter, and this equipment can't handle the dust of too high temperature moreover. The spraying method sprays a large amount of high-multiple foam to the dust source by adding the foam agent, wherein after the liquid forms the foam, the total volume and the surface area are greatly increased, so that the collision probability with the dust is greatly improved. However, the cost of the foaming agent and the equipment of the dust fall system and the foaming agent are high, which affects the popularization and application of the equipment to a certain extent. The electrostatic dust collection method is not suitable for high-temperature dust collection and has high energy consumption. Therefore, the device carries out rosin dust treatment through the design of a multi-layer filter bed, and solves the problem of high temperature resistance and filter material blockage.

As shown in fig. 5, the multi-layer filter bed dust removal module is composed of a guide plate 12, a double-layer filter material 13 and a central shaft 14. The dust removal module comprises six filter layers from top to bottom, each filter layer is provided with an upper layer of filter material, a lower layer of filter material and a sedimentation chamber, wherein the sedimentation chamber is a space formed between the double-layer filter material 13 and the guide plate 12. The flow guide 12 is designed into an inverted conical curved surface, so that the introduced high-speed air flow is split to two sides, a vortex area is generated at the opening of the flow guide plate, negative pressure is generated, large-particle dust enters the settling chamber along with vortex, and the probability of dust entering the filter bed is reduced. After the gas of rosin dust enters the device from the air inlet, coarser dust is settled in the settling chamber, fine dust is primarily dedusted through the upper filter material with coarse particle size, and fine dust is finely dedusted through the lower filter material with fine particle size. Due to inertia, the gas separation effect is poor, the speed of the gas flowing through the six filter layers is gradually reduced, the flow speed of the first layer can reach 10m/s, the flow speed of the last layer is 4m/s, and the discharge standard can still be met. Then, when the filter bed is used for ash removal, the back-blowing valve is opened, back-blowing air flow enters the filter bed from bottom to top through the air distribution plate, and dust trapped during filtration is back-blown into the shell for sedimentation. Even when rosin dust and an emulsifier are coagulated, the coagulated small particles fall into a settling chamber together with the dust to settle. Compared with the traditional filter cylinder dust removing device, the dust removing device has the advantages that the problems of blockage, reduced filtering area and the like are avoided during ash removal. The frequency of replacing the filter screen can be doubled by the design.

As shown in fig. 6, the bottom opening and closing mechanism includes a bottom plate 16, and an opening and closing mechanism 17. The bottom plate passes through the bolt and links to each other with the device shell, is equipped with gas vent 15 in the middle of the mechanism that opens and shuts, gas vent and the filter bed intercommunication that bottom opened and shut the mechanism and design into five direction spiral openings, attached to the bottom plate, increased the flexibility that opens and shuts. When air reaches the exhaust port, the gas containing rosin dust enters the device from the air inlet, larger dust is settled in the settling chamber, fine dust is primarily removed in the upper filter material layer, and then fine dust is removed in the lower filter material layer.

The dust guide plate in the multi-layer filter bed is arranged at the inlet of the settling chamber. When the gas containing dust particles enters the filter bed, the gas is difficult to clean out after entering the filter bed because the gas contains dust particles with larger particle sizes, and when the back blowing air flow continuously carries out back blowing ash cleaning, the dust particles easily repeatedly enter the filter bed, so that the burden of the filter bed is heavier. Therefore, the device is to add a guide plate at the inlet of the settling chamber to change the flow field of the air flow in the filter bed. After the guide plate is added, the high-speed airflow introduced into the fluidized bed can be split to two sides, and a vortex area can be formed at the opening of the guide plate. The airflow direction of the vortex area changes drastically, and large particle dust enters the settling chambers at two sides along with the vortex, so that the probability of entering the filter bed is reduced.

On the basis of collecting dust by using the coanda effect, the utility model also adds the filter treatment device with the multi-layer filter material and the back-blowing valve, and compared with the traditional filter device, the utility model has the advantages of higher efficiency and difficult blockage, and the glass fiber composite filter material can resist high temperature and prolong the service life of the device. Therefore, the device can be applied to various fields such as garbage incineration, air drying technology, air purification in food processing fields and the like.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. Prevent blockking up rosin dust multilayer filter, its characterized in that: comprises a dust absorption module, a multi-layer filter bed dust removal module and a shell arranged outside the multi-layer filter bed dust removal module; the dust absorption module comprises a cooling fan and a guide fan cover, wherein the cooling fan is fixedly arranged at the top of the guide fan cover, the bottom of the guide fan cover is communicated with the multi-layer filter bed dust removal module, an air distribution plate is arranged at the bottom of the multi-layer filter bed dust removal module, a bottom plate is connected to the air distribution plate, and an opening and closing mechanism is arranged on the bottom plate.

2. The anti-clogging rosin dust multilayer filter of claim 1, wherein: the multi-layer filter bed dedusting module comprises a plurality of filter beds which are sequentially connected from top to bottom, each filter bed is connected through a central shaft arranged in the middle, each filter bed comprises an upper layer of filter material, a lower layer of filter material, a guide plate and a settling chamber, the double-layer filter material is arranged at the bottom of the guide plate and forms the settling chamber between the guide plate, and the settling chamber is connected with the shell and is used for collecting dust when the shell is reversely blown.

3. The anti-clogging rosin dust multilayer filter of claim 1, wherein: and a one-way valve is arranged between the bottom of the diversion fan cover and the multi-layer filter bed dust removal module.

4. A multi-layer filter for preventing rosin dust blocking according to claim 3, wherein: the check valve comprises a check valve shell, a valve body, a compression spring, an upper gasket and a lower gasket, wherein the top of the valve body is connected with the upper gasket, and the bottom of the valve body is sequentially connected with the compression spring and the lower gasket.

5. The anti-clogging rosin dust multilayer filter of claim 1, wherein: the middle of the opening and closing mechanism is provided with an air outlet which is communicated with the filter bed at the bottommost part.

6. The anti-clogging rosin dust multilayer filter of claim 1, wherein: the diversion fan cover is an arc-shaped curved surface.

7. The anti-clogging rosin dust multilayer filter of claim 1, wherein: the dust absorption module air inlet is provided with a pore plate.

8. The anti-clogging rosin dust multilayer filter of claim 1, wherein: and a dust guide plate is arranged at the inlet of the settling chamber in the filter bed.

9. The anti-clogging rosin dust multilayer filter of claim 2, wherein: the filter material adopts glass fiber composite filter material.

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