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

Abstract

The utility model discloses an anti-clogging rosin dust multi-layer filter, which comprises a dust absorption module, a multi-layer filter bed dust removal module and a housing arranged outside the multi-layer filter bed dust removal module; wherein, the dust absorption module It includes a cooling fan and a wind deflector, the cooling fan is fixed on the top of the wind deflector, the bottom of the wind deflector communicates with the multi-layer filter bed dust removal module, and the multi-layer filter bed dust removal module An air distribution plate is provided at the bottom, and the air distribution plate is connected to the base plate, and an opening and closing mechanism is provided on the base plate. The utility model utilizes the Coanda effect, can achieve high efficiency, is not easy to block and multi-layer filter, and can effectively reduce the rosin dust generated in the production process.

Description

Anti-clogging rosin dust multi-layer filter

technical field

The utility model relates to the technical field of filters, in particular to an anti-clogging rosin dust multi-layer filter.

Background technique

Rosin is the main material for the production of rubber and disproportionated potassium abietate soap, among which the crushing and melting of rosin is an important process of the device. During the crushing and transportation of rosin, a large amount of rosin dust is easily generated and diffused into the air environment. The chemical composition of industrial rosin often contains toxic compounds and some heavy metals such as lead, and the peroxide produced after oxidation is more toxic to the air environment and monitoring workers' health. Therefore, excessive rosin dust is an urgent problem to be solved in the production process.

Due to the large construction space, it is difficult to collect rosin dust. Traditional rosin dust treatment methods use spray dust removal method and filter cartridge dust removal method. Among them, the filter cartridge dust removal method, the internal fan filter layer is easy to block, the equipment is easy to corrode, and the volume is large, which greatly reduces the working life. Moreover, the equipment cannot handle dust with high temperature, so it has not been widely promoted. The spray method sprays a large amount of high-expansion foam to the dust source by adding a foam agent. After the liquid forms foam, the total volume and surface area increase greatly, which greatly increases the probability of collision with the dust. The foam dust removal method can cover a large area of dust, fundamentally prevent the dust from spreading outward, and the dust suppression effect is more obvious. However, the cost of foaming agent and dust suppression system equipment and foaming agent is relatively high, which affects the popularization and application of such equipment to a certain extent. Therefore, this device intends to design an efficient and non-clogging multi-layer filter device to collect and process rosin dust.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides an anti-clogging rosin dust multi-layer filter, which can achieve the effect of high efficiency, non-clogging and multi-layer filtration, and can effectively reduce the rosin dust generated in the production process.

In order to achieve the above object, the utility model is realized through the following technical solutions:

The anti-clogging rosin dust multi-layer filter includes a dust absorption module, a multi-layer filter bed dust removal module and a housing arranged outside the multi-layer filter bed dust removal module; wherein, the dust absorption module includes a cooling fan and a guide wind cover, the cooling fan is fixed on the top of the air diversion hood, the bottom of the air diversion hood communicates with the multi-layer filter bed dust removal module, and the bottom of the multi-layer filter bed dust removal module is provided with an air distribution plate, The air distribution plate is connected to the base plate, and the base plate is provided with an opening and closing mechanism.

Further, the multi-layer filter bed dedusting module includes a plurality of filter beds sequentially connected from top to bottom, and each filter bed is connected by a central axis arranged in the middle, and each filter bed includes two upper and lower layers Filter material, deflector, settling chamber, double-layer filter material is set between the bottom of the deflector and the deflector to form a settling chamber, the settling chamber is connected with the housing for dust collection during back blowing .

Further, a one-way valve is provided between the bottom of the air guide hood and the multi-layer filter bed dust removal module.

Further, the one-way valve includes a one-way valve housing, a valve body, a compression spring, an upper gasket and a lower gasket, the top of the valve body is connected to the upper gasket, and the bottom of the valve body is connected to the compression spring and the lower gasket in turn.

Further, an exhaust port is provided in the middle of the opening and closing mechanism, and the exhaust port communicates with the filter bed at the bottom.

Further, the wind guide cover is an arc-shaped curved surface.

Further, the air inlet of the dust absorption module is provided with an orifice.

Further, a dust deflector is installed at the entrance of the settling chamber in the filter bed.

Further, the filter material is a glass fiber composite filter material.

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

The utility model uses the Coanda effect to effectively collect the dispersed rosin dust in the factory, and then relies on the multi-layer filter bed to filter the dust step by step, and uses the fast rotation of the fan to generate a high-speed jet to achieve the Coanda effect, which can achieve high efficiency and is not easy to block And the effect of multi-layer filtration can effectively reduce the rosin dust generated in the production process. When cleaning the filter bed, the blowback valve is opened, and the blowback airflow enters the filter bed through the air distribution plate from bottom to top, and blows back the dust retained during filtration to the settling chamber for settling. Therefore, even when the rosin dust and the emulsifier condense, the condensed small particles will fall into the settling chamber together with the dust to settle. Compared with the traditional filter cartridge dust removal device, there will be no problems such as clogging and reduction of filter area during dust removal. Such a design can reduce the replacement frequency of the filter screen by one time.

Description of drawings

Fig. 1 is the overall schematic diagram of the present invention;

Fig. 2 is the internal schematic view of the device main body of the present invention;

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

Fig. 4 is a schematic view of the structure of a one-way valve;

Fig. 5 is a schematic diagram of a multi-layer filter bed dedusting module;

Figure 6 is a schematic diagram of the opening and closing mechanism at the bottom;

In the figure Ⅰ-dust absorption module, Ⅱ-multi-layer filter bed dust removal module, 1-dust absorption mechanism, 2-filter bed, 3-one-way valve, 4-air distribution plate, 5-guiding air cover, 6-fan , 7-one-way valve shell, 8-one-way valve body, 9-compression spring, 10-upper gasket, 11-lower gasket, 12-deflector, 13-double filter material, 14-center shaft , 15-exhaust port, 16-base, 17-opening and closing mechanism.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

As shown in FIG. 1 , the device of the present invention includes a dust absorption module I, a multi-layer filter bed dust removal module II and a housing arranged outside the multi-layer filter bed dust removal module. Rosin dust anti-clogging multi-layer filter When rosin is crushed in the previous process, it will fall from the discharge port into the collection device. During this period, a large amount of dust will be generated under the action of surrounding wind and air flow. These pollutions have caused related production jobs The maximum dust concentration exceeds the standard. Therefore, it is necessary for this device to first use the Coanda effect to effectively collect the dispersed rosin dust in the factory through the dust absorption module, and then rely on the multi-layer filter bed to filter the dust step by step.

As shown in FIG. 2 , the device of the present invention includes a dust absorption 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 located at the uppermost part of the device, fixed with the main body by four bolts, and is used to drive the entire device to collect and filter rosin dust. The filter bed 2 and the one-way valve 3 are in the center of the whole device as the core components of the whole module. This part utilizes the Coanda effect to achieve high-efficiency filtration of rosin dust. The air distribution plate 4 is below the filter bed.

As shown in FIG. 3 , the dust absorption mechanism 1 includes a wind deflector 5 and a cooling fan 6 . The cooling fan 6 can utilize its rapid rotation to generate a high-speed jet, thereby achieving the Coanda effect. The air guide cover 5 is designed as an arc-shaped curved surface, which can change the direction of gas flow. After the device starts to supply power, the cooling fan 6 runs at a high speed, and the atmosphere produces a certain negative pressure between the cooling fan 6 and the air deflector 5 . After the cooling fan 6 rotates, the surrounding air gas velocity that contains the rosin dust particles is accelerated, and the high-speed jet and surrounding atmospheric air push it to the curved surface. The direction of the dust airflow is changed from the original vertical direction from top to bottom to the curved direction along the arc surface of the guide hood, and then the high-speed airflow is concentrated in the middle and flows into the opening of the multi-layer filter bed below. At the same time, under the action of the pressure difference between the atmospheric pressure and the negative pressure at the opening, an airflow is generated in the device to inhale the dust airflow, and prevent the dust from overflowing through continuous inhalation. The air inlet of the dust absorption module is designed with an orifice. Considering that rosin dust is difficult to collect, and it is easy to cause flow loss in the pipeline. Therefore, the baffle plate can be designed so that the external air flow enters the flow channel from the circumferential ring surface, and the gas passes through the arc-shaped tube and smoothly transitions to 90° to enter the axial flow channel, and then enters the multi-layer filter bed through the flow channel. The upper and lower walls of the flow channel are fixed by five support plates to reduce flow loss. The guide wind cover 5 is designed as a curved pipe with an arc shape, which is connected to the filter bed through an axial pipe. The design of the arc pipe and the axial pipe can Accelerate the flow of dust gas and greatly improve efficiency.

As shown in FIG. 4 , the one-way valve mechanism is composed of a one-way valve housing 7 , a valve body 8 , a compression spring 9 , an upper gasket 10 and a lower gasket 11 . After the air containing rosin dust enters the one-way valve, it can only flow from top to bottom under the action of the valve body, compression spring 9, upper gasket 10 and lower gasket 11. The air pushes the valve body to compress the spring, and the gasket can It plays the role of stabilizing the mechanism, and at the same time, this part of the mechanism can also prevent the backflow of the rosin dust and smoke entering the filter bed and reduce the flow loss.

The current rosin dust filtration methods mainly adopt the following three methods, filter cartridge dust removal method, spray dust removal method and electrostatic dust removal method. Among them, the fan filter layer inside the filter cartridge is easy to block, the equipment is easy to corrode, has a large volume, and has a short working life, and the equipment cannot handle dust with excessive temperature. The spray method sprays a large amount of high-expansion foam to the dust source by adding a foam agent. After the liquid forms foam, the total volume and surface area increase greatly, which greatly increases the probability of collision with the dust. However, the cost of foaming agent and dust suppression system equipment and foaming agent is relatively high, which affects the popularization and application of such equipment to a certain extent. The electrostatic dust removal method is not suitable for high temperature dust removal, and the energy consumption is relatively high. Therefore, the device uses a design of a multi-layer filter bed to process rosin dust, and at the same time solves the problems of high temperature resistance and filter blockage.

As shown in FIG. 5 , the multi-layer filter bed dust removal module is composed of a deflector 12 , a double-layer filter material 13 and a central axis 14 . The dust removal module includes six filter layers from top to bottom, and each filter layer has upper and lower double-layer filter materials and a settling chamber, wherein the settling chamber is a space formed between the double-layer filter material 13 and the deflector 12 . The deflector 12 is designed as an inverted conical curved surface, so that the incoming high-speed air flow is diverted to both sides, and at the same time, a vortex area is generated at the opening of the deflector plate to generate negative pressure, and the large particle dust enters the settling chamber along with the vortex. Reduces the probability of soot entering the filter bed. After the rosin dust gas enters the device from the air inlet, the coarser dust settles in the settling chamber, and the fine dust first passes through the upper layer filter material with coarse particle size for preliminary dust removal, and then passes through the lower layer filter material with fine particle size for fine dust removal. Due to inertia, the gas separation effect becomes worse, and the velocity of the six filter layers gradually decreases. The flow velocity of the first layer can reach 10m/s, and the flow velocity of the last layer is 4m/s, which can still meet the emission standards. Then, when the filter bed is being cleaned, the blowback valve is opened, and the blowback airflow enters the filter bed through the air distribution plate from bottom to top, blowing back the dust trapped during filtration into the shell for sedimentation. Therefore, even when the rosin dust and the emulsifier condense, the condensed small particles will fall into the settling chamber together with the dust to settle. Compared with the traditional filter cartridge dust removal device, there will be no problems such as clogging and reduction of filter area during dust removal. Such a design can reduce the replacement frequency of the filter screen by one time.

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 is connected with the device shell through bolts, and an exhaust port 15 is arranged in the middle of the opening and closing mechanism, and the exhaust port is connected with the filter bed at the bottom. The flexibility of opening and closing. When the air reaches the exhaust port from the opening and closing mechanism, the gas containing rosin dust enters the device from the air inlet, the larger dust settles in the settling chamber first, and the fine dust is firstly dedusted in the upper filter material, and then in the lower filter material. Fine dust removal.

The dust deflector in the multi-layer filter bed is installed at the entrance of the settling chamber. When the gas containing dust particles enters the filter bed, it is not easy to be cleared out after entering the filter bed because it contains dust particles with a large particle size. Into the filter bed, resulting in a heavy burden on the filter bed. Therefore, this device plans to add a deflector at the entrance 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 air flow will split to both sides after entering the fluidized bed, and at the same time, a vortex area will be generated at the opening of the guide plate. The direction of the airflow in the vortex area changes drastically, and the large particle dust enters the settling chambers on both sides with the vortex, reducing the probability of it entering the filter bed.

On the basis of applying the Coanda effect for dust collection, the present invention also adds a filter treatment device with multi-layer filter material and back-blowing valve. The material can withstand high temperature and prolong the service life of the device. Therefore, the device can be applied to various fields such as garbage incineration, airflow drying process, and air purification in food processing plants.

In the description of the present utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", " The orientation or positional relationship indicated by "top", "inner", "front", "central", "both ends" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description , rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the number of indicated technical features, Thus, a feature defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

In this utility model, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation" and "rotation" should be understood in a broad sense, for example, it may be a fixed connection, It can also be detachable connection, or integrated; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components Unless otherwise clearly defined, those skilled in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by 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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