CN217490361U

CN217490361U - Demoulding waste gas purification device

Info

Publication number: CN217490361U
Application number: CN202221542333.3U
Authority: CN
Inventors: 宋满意
Original assignee: Longwei Environmental Technology Zhejiang Co ltd
Current assignee: Longwei Environmental Technology Zhejiang Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-09-27
Anticipated expiration: 2032-06-20

Abstract

The utility model discloses a demoulding waste gas purification device, which belongs to the technical field of die casting waste gas treatment. The device includes a purification box, and the purification box is provided with an adjacent filter chamber and a deodorization chamber. An air inlet is opened on the side wall of the filter chamber away from the deodorization chamber, and the filter chamber extends from the air inlet to the deodorization chamber. A filter device and a plasma electric field are arranged in sequence in the direction of the deodorization chamber. The deodorization chamber is communicated with the filter chamber. An exhaust port is arranged at the top of the deodorization chamber. The treatment device can be directly installed above the die-casting machine without pipeline connection, which reduces the resistance caused by the pipeline and avoids the risk of combustion and explosion of metal dust in the pipeline. The waste gas is directly collected and processed. The three-stage treatment method of oxidation and deodorization improves treatment efficiency, reduces treatment costs, and avoids secondary pollution; there is a self-cleaning mechanism inside, which is simple and convenient for operation and maintenance.

Description

Demoulding waste gas purification device

Technical Field

The utility model relates to a die-casting exhaust-gas treatment technical field specifically is a drawing of patterns exhaust gas purification device.

Background

With the vigorous development of various manufacturing industries in China, the nonferrous metal die-casting industry matched with the manufacturing industries also forms the industrial chain scale. The enterprise need put into the melting furnace with non ferrous metal when die-casting, makes the metal melt fast through the heating, then pours into the molten metal liquid into the die chamber into, fills the die cavity of steel mould with the mode of high-speed extrusion, and the metal liquid cools off solidification under the effect of pressure and forms the foundry goods. In the process of forming and opening the mold, a high-pressure spray gun is used for spraying a mold release agent to prevent a metal casting from being adhered to the mold, the mold release agent is heated and volatilized to generate a small amount of mold release waste gas, the conventional processing method of the die-casting organic waste gas, which is not methane total hydrocarbon, generally comprises an absorption method, an adsorption method, a UV (ultraviolet) photolysis method and the like, and the methods have characteristics and advantages and disadvantages in application and need to be balanced according to the pollution degree, the using environment and conditions.

No matter which treatment method is adopted, the following defects and hidden dangers exist in the actual production process of enterprises:

1. the die-casting demolding waste gas is collected by the collecting cover, all equipment is connected through a pipeline, and the centrifugal fan is used for pumping negative pressure to outdoor waste gas treatment equipment for uniform collection and treatment, so that in order to overcome the resistance and air leakage rate of a pipeline and a waste gas treatment system, the centrifugal fan usually selects the type with high pressure and large air volume when the parameters are selected, the power of a matched motor is also large, and the energy consumption is very high;

2. when the demolding waste gas is collected, the demolding agent carries the metal aluminum slag to be attached to the inner wall of the pipeline, and after the metal aluminum slag is attached to a certain thickness, the danger of combustion and explosion is accompanied, so that the safety production of enterprises is not facilitated;

3. because the demoulding waste gas of all indoor die casting machines is connected to outdoor waste gas treatment equipment through pipelines, the waste gas treatment system has large design air quantity, large equipment volume and more occupied space, the air distribution of each branch pipeline is difficult to keep balanced, the treatment effect is poor, and the early investment cost of enterprises is high;

4. when the enterprise is not in full load production (namely the die casting machine is started or stopped), the low-load operation of the waste gas treatment equipment cannot be controlled, and the energy consumption loss is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drawing of patterns exhaust gas purification device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a drawing of patterns exhaust gas purification device, includes and purifies the box, be provided with adjacent filter chamber and deodorization room in the purification box, the filter chamber has been kept away from and has been seted up the air inlet on the lateral wall of deodorization room one side, filter equipment and plasma electric field have set gradually by the direction of air inlet to deodorization room in the filter chamber, the deodorization room communicates with each other with the filter chamber, the deodorization roof portion is provided with the gas vent, the inside UV photodissociation catalytic oxidation generator who is close to the gas vent that is provided with of deodorization room.

As a further aspect of the present invention: the plasma electric field comprises a primary plasma electric field, a secondary plasma electric field and a tertiary plasma electric field which are sequentially arranged from the filtering device to the deodorizing chamber at intervals.

As a further aspect of the present invention: and self-cleaning mechanisms for cleaning the filtering devices and the filtered substances on the plasma electric fields are arranged on two sides of the filtering devices, the primary plasma electric field, the secondary plasma electric field and the tertiary plasma electric field.

As a further aspect of the present invention: the self-cleaning mechanism comprises a slide rail fixedly arranged on the top wall inside the filtering chamber, a slide block is arranged at the lower end of the slide rail in a sliding mode, a servo motor is fixedly arranged on one side of the slide block, a gear is fixedly connected with a servo motor output shaft, a rack meshed with the gear is arranged at the lower end of the slide rail, a vertical water spraying pipe is fixedly arranged at the lower end of the slide block, a plurality of spray heads are uniformly arranged on the water spraying pipe, a telescopic hose is connected onto the water spraying pipe, and the telescopic hose penetrates through the side wall of the filtering chamber and is connected with a high-pressure water pump outside the purifying box body.

As a further aspect of the present invention: the two sides of the filtering device, the primary plasma electric field, the secondary plasma electric field and the tertiary plasma electric field are respectively provided with an inclined water guide groove formed in the bottom wall of the filtering chamber, one side of the bottom wall of the filtering chamber is further provided with an inclined water return groove connected with the water guide grooves, and the purifying box body is provided with a water guide pipe connected with the water return groove.

As the utility model discloses further scheme again: the indoor fan that is located UV photodissociation catalytic oxidation generator below that is provided with of deodorization, the fan air intake run through the deodorization lateral wall and communicate with each other with the filter chamber, the fan air outlet corresponds with UV photodissociation catalytic oxidation generator.

As a further aspect of the present invention: an access door is arranged on the outer wall of the purifying box body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the waste gas purifying device adopts a three-level treatment method of filtering, low-temperature plasma and UV photolysis catalytic oxidation deodorization to treat demoulded waste gas, collected gas firstly passes through the filtering device, a metal filter screen or a honeycomb filter can be adopted to filter water vapor and metal particulate matters in the gas, residual demoulding agents (the components of the demoulding agents are coatable silicone oil, unsaturated active agents, LPG propellants, petroleum hydrogen and the like) in the gas pass through the discharge action of a low-temperature plasma electric field, particles rich in extremely high chemical activity are generated in plasma, such as electrons, ions, free radicals, excited state molecules and the like, pollutants in the waste gas react with active groups with higher energy, and are finally converted into CO ₂ And H ₂ O and other substances are placed in a three-stage structure by a low-temperature plasma electric field, so that residual moisture in the gas and oily components of a release agent can be removed fully, the gas subjected to filtering and plasma electric field treatment enters a UV photolysis catalytic oxidation generator, oxygen molecules in the air are decomposed by utilizing high-energy high-ozone UV light beams to generate free oxygen, namely active oxygen, and the free oxygen needs to be combined with the oxygen molecules because the free oxygen is unstable, so that ozone is generated, the ozone has a strong oxidation effect on organic matters, and the odor in the gas is removed thoroughly;

2. a self-cleaning mechanism is additionally arranged in the filter chamber, a servo motor is used for driving a water spray conduit to reciprocate, the water spray conduit adopts a high-pressure water pump for supplying water, the washed water flows out of the filter chamber through a return water tank and is collected again, the water can be recycled after particles in the water are filtered, and a fan is automatically started to automatically dry an internal electric field after the water is cleaned, so that the service life of the electric field is prolonged and the safety of equipment is improved;

in conclusion, the waste gas treatment device can be directly arranged above a die casting machine, is not connected with a pipeline, reduces resistance brought by the pipeline, avoids the danger of metal dust combustion and explosion in the pipeline, directly collects waste gas for post-treatment, adopts a three-stage treatment method of filtering, low-temperature plasma and UV photolysis catalytic oxidation deodorization, improves the treatment efficiency, reduces the treatment cost and avoids secondary pollution; the inside is equipped with self-cleaning mechanism, and the fortune dimension is simple and convenient.

Drawings

FIG. 1 is a structural view of a demolded exhaust gas purification apparatus;

FIG. 2 is a side view structural view of a demolded exhaust gas purification apparatus;

FIG. 3 is an enlarged view of a portion of the self-purging mechanism of FIG. 1;

fig. 4 is a perspective view of a demolded exhaust gas purification device.

In the figure: 1. purifying the box body; 2. an air inlet; 3. a water spray conduit; 4. a spray head; 5. a filtration device; 6. a slot; 7. a primary plasma electric field; 8. a secondary plasma electric field; 9. a third-level plasma electric field; 10. a water chute; 11. a deodorization chamber; 12. a fan; 13. an air inlet; 14. a UV photolysis catalytic oxidation generator; 15. an exhaust port; 16. a flexible hose; 17. a water return tank; 18. a water conduit; 19. an access door; 20. a slide rail; 21. a slider; 22. a servo motor; 23. a rack; 24. a gear; 25. and (6) filtering the solution.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present embodiment provides a device for purifying mold-releasing waste gas, which comprises a purifying box 1, the purifying box body 1 is internally provided with a filtering chamber 25 and a deodorizing chamber 11 which are adjacent, the side wall of the filtering chamber 25 far away from the deodorizing chamber 11 is provided with an air inlet 2, a filtering device 5 for filtering out water vapor and metal particles in the gas and a plasma electric field 7 for removing pollutants in the gas are sequentially arranged in the filtering chamber 25 from the gas inlet 2 to the deodorizing chamber 11, the filtering device 5 preferably adopts a metal filtering net or a honeycomb filter, the selection of the filtering device 5 is a conventional technical means familiar to those skilled in the art, and is not described again, the deodorization chamber 11 is communicated with the filter chamber 25, the top of the deodorization chamber 11 is provided with an exhaust port 15, the deodorization chamber 11 is internally provided with a UV photolysis catalytic oxidation generator 14 near an exhaust port 15.

Further, the plasma electric field 7 comprises a first-stage plasma electric field 7, a second-stage plasma electric field 8 and a third-stage plasma electric field 9 which are sequentially arranged from the filtering device 5 to the deodorizing chamber 11 at intervals, and the plasma electric field adopts a plate-type low-temperature plasma electric field, so that the technology mature in the waste gas treatment technology in the environmental protection field is not repeated.

Furthermore, two sides of the filtering device 5, the primary plasma electric field 7, the secondary plasma electric field 8 and the tertiary plasma electric field 9 are respectively provided with a self-cleaning mechanism for cleaning filtering objects on the filtering device 5 and the plasma electric field 7.

Still further, with reference to fig. 1, 2, and 3, the self-cleaning mechanism includes a slide rail 20 fixedly disposed on the top wall inside the filtering chamber 25, a slide block 21 is slidably disposed at the lower end of the slide rail 20, a servo motor 22 is fixedly disposed on one side of the slide block 21, a gear 23 is fixedly connected to an output shaft of the servo motor 22, a rack 24 engaged with the gear 23 is disposed at the lower end of the slide rail 20, a vertical water spraying conduit 3 is fixedly disposed at the lower end of the slide block 21, a plurality of nozzles 4 are uniformly disposed on the water spraying conduit 3, a flexible hose 16 is connected to the water spraying conduit 3, the flexible hose 16 penetrates through the side wall of the filtering chamber 25 and is connected to a high-pressure water pump outside the purifying chamber 1, and the high-pressure water pump presses outside water into the water spraying conduit 3 through the flexible hose 16.

Still further, the both sides of filter equipment 5, one-level plasma electric field 7, second grade plasma electric field 8 and tertiary plasma electric field 9 all are provided with the inclined guiding gutter 10 of seting up on the filter chamber 25 diapire, inclined return flume 17 that meets with a plurality of guiding gutters 10 is still seted up to filter chamber 25 diapire one side, be provided with the aqueduct 18 of being connected with return flume 17 on the purification box 1, the water that washs filter equipment 5 and plasma electric field flows into aqueduct 18 through guiding gutter 10 and return flume 17, discharges filter chamber 25 and collects through aqueduct 18, filters water, can be once more through high pressure water pump repeatedly use in pumping to water injection guide 3, filters water and reuse for the conventional setting of technical staff in the field, no longer gives unnecessary details.

In addition, be provided with in the deodorization room 11 and be located the fan 12 of UV photolysis catalytic oxidation generator 14 below, fan 12 air intake runs through deodorization room 11 lateral wall and communicates with each other with filter chamber 25, fan 12 air outlet corresponds with UV photolysis catalytic oxidation generator 14, UV photolysis catalytic oxidation generator 14 utilizes ultraviolet ray beam irradiation foul gas, the device of schizolysis foul gas, and the device is the conventional setting that technical personnel in the field are familiar with, and no longer the repeated description, fan 12 inhale deodorization room 12 with the gas in the filter chamber 25 in, gaseous deodorization room 11 of discharging through gas vent 15 after UV photolysis catalytic oxidation generator 14 handles.

In addition, in order to facilitate maintenance, the outer wall of the purification box body 1 is provided with an access door 19, preferably, the upper inner wall and the lower inner wall of the filtering chamber 25 are respectively provided with a plurality of slots 6 corresponding to the filtering device 5 and the plasma electric field, and the filtering device 5 and the plasma electric field are inserted into the slots 6 in an inserting mode, so that the installation of the filtering device 5 and the plasma electric field in the filtering chamber 25 is realized, and the maintenance is facilitated.

It should be noted that the above embodiments are only specific and clear descriptions of technical solutions and technical features of the present application. However, to those skilled in the art, aspects or features that are part of the prior art or common general knowledge are not described in detail in the above embodiments.

In addition, the technical solutions of the present application are not limited to the above-described embodiments, and a person skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined, so that other embodiments understood by a person skilled in the art may be formed.

Claims

1. A demoulding exhaust gas purification device, comprising a purification box (1), characterized in that the purification box (1) is provided with an adjacent filter chamber (25) and a deodorization chamber (11), so An air inlet (2) is provided on the side wall of the filter chamber (25) away from the deodorization chamber (11), and the filter chamber (25) extends from the air inlet (2) to the deodorization chamber (11). A filter device (5) for filtering out water vapor and metal particles in the gas and a plasma electric field (7) for removing pollutants in the gas are sequentially arranged in the direction of the deodorization chamber (11) and the filter chamber ( 25) communicate with each other, an exhaust port (15) is provided on the top of the deodorizing chamber (11), and a UV photolysis catalytic oxidation generator (14) close to the exhaust port (15) is provided inside the deodorizing chamber (11). ).

2 . The device for purifying exhaust gas from mold release according to claim 1 , wherein the plasma electric field ( 7 ) comprises first-level plasmas arranged at intervals from the filter device ( 5 ) to the deodorizing chamber ( 11 ). 3 . Electric field (7), secondary plasma electric field (8) and tertiary plasma electric field (9).

3 . The mold release exhaust gas purification device according to claim 2 , wherein the filter device ( 5 ), the primary plasma electric field ( 7 ), the secondary plasma electric field ( 8 ) and the tertiary plasma electric field ( 3 . Both sides of 9) are provided with self-cleaning mechanisms for cleaning the filter device (5) and the filter on the plasma electric field (7).

4. A mold release exhaust gas purification device according to claim 3, characterized in that the self-cleaning mechanism comprises a slide rail (20) fixedly arranged on the inner top wall of the filter chamber (25), the slide rail (20) A slider (21) is slidably arranged at the lower end, a servo motor (22) is fixedly arranged on one side of the slider (21), and a gear (23) is fixedly connected to the output shaft of the servo motor (22). (20) The lower end is provided with a rack (24) meshing with the gear (23), the lower end of the slider (21) is fixedly provided with a vertical water spray conduit (3), and the water spray conduit (3) is evenly A plurality of spray heads (4) are provided, and a telescopic hose (16) is connected to the water spray conduit (3). ) external high pressure water pump connection.

5 . The mold release exhaust gas purification device according to claim 4 , wherein the filter device ( 5 ), the primary plasma electric field ( 7 ), the secondary plasma electric field ( 8 ) and the tertiary plasma electric field ( 5 . 9) Both sides are provided with inclined water guide grooves (10) opened on the bottom wall of the filter chamber (25), and one side of the bottom wall of the filter chamber (25) is also provided with a plurality of water guide grooves (10). The sloping water return tank (17) is connected, and the purification box (1) is provided with a water conduit (18) connected to the water return tank (17).

6. A mold release exhaust gas purification device according to claim 5, characterized in that a fan (12) located below the UV photolysis catalytic oxidation generator (14) is arranged in the deodorizing chamber (11), The air inlet of the fan (12) penetrates the side wall of the deodorizing chamber (11) and communicates with the filter chamber (25), and the air outlet of the fan (12) corresponds to the UV photolysis catalytic oxidation generator (14).

7 . The device for purifying exhaust gas from mold release according to claim 6 , wherein an inspection door ( 19 ) is provided on the outer wall of the purification box ( 1 ). 8 .