CN216320734U - Waste gas dust device for VOCs low-nitrogen combustion - Google Patents

Abstract

The utility model discloses a waste gas dust-settling device for low-nitrogen combustion of chemically-produced VOCs (volatile organic compounds), which comprises a pretreatment box and a working box, wherein the pretreatment box is connected with the working box through a connecting pipeline, a first fan is arranged outside the connecting pipeline, a top cover is arranged at the top of the pretreatment box, a second gas injection pipe is arranged at the top of the top cover, and first filter plates are equidistantly arranged inside the pretreatment box; the utility model has the following beneficial effects: based on not enough improving in current VOCs exhaust gas combustion device, combine prior art, provide one kind can the process more simple and convenient, the high efficiency treatment equipment that the device is simplified more to carry out better processing to VOCs produced waste gas after the burning, the device not only can provide the treatment effeciency, optimize numerous and diverse equipment, reduce cost, can handle the harmful substance in the waste gas moreover, thereby better environmental protection, the device easy operation, convenient and practical.

Description

Waste gas dust device for VOCs low-nitrogen combustion

Technical Field

The utility model relates to the technical field of chemical waste gas treatment, in particular to a waste gas dust-settling device for low-nitrogen combustion of VOCs (volatile organic compounds).

Background

In China, VOCs (volatile organic compounds) volatile organic compounds refer to organic compounds with saturated vapor pressure of more than 70.91Pa at normal temperature, boiling point of 50-260 ℃ below under standard atmospheric pressure of 101.3kPa and initial boiling point of 250 ℃, or any organic solid or liquid capable of volatilizing at normal temperature and normal pressure.

In the existing low-nitrogen combustion process of chemically produced VOCs, waste gas produced by the VOCs is mixed with a lot of dust, the waste gas generated by the VOCs needs to be subjected to dust fall treatment, the waste gas generated by the VOCs needs to be subjected to pretreatment in the prior art, thereby removing impurities and dust particles carried in the waste gas, and then further treating pollutants in the VOCs, wherein the treatment of the pollutants in the waste gas usually comprises dry treatment and wet treatment at present, while pollutants carried in VOCs can be treated only by biodegradation or incineration and the like after adsorption, the treatment equipment in the prior art has single function and complicated steps, and moreover, the cost is too high, the efficiency of waste gas treatment also needs to be improved, and therefore the waste gas dust-settling device for low-nitrogen combustion of VOCs is provided for solving the problems, so that the production life is better served.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dust-settling device for waste gas generated by low-nitrogen combustion of VOCs (volatile organic compounds), which aims to solve the problems in the background art.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model provides a change and produce VOCs low-nitrogen for burning waste gas dust device, includes pretreatment tank and work box, be connected through connecting tube between pretreatment tank and the work box, connecting tube's outside is equipped with first fan, pretreatment tank's top is equipped with the top cap, the top of top cap is equipped with the second gas injection pipe, pretreatment tank's inside equidistance is equipped with first filter, pretreatment tank's inside and the below equidistance that is located first filter are equipped with the second filter, pretreatment tank inside just is located the below of second filter and rotates and be connected with the dwang, the outside equidistance of dwang is equipped with the zeolite runner, pretreatment tank's outside is equipped with servo motor, servo motor's output and the one end fixed connection of dwang, pretreatment tank internal wall's bottom just is located the below of zeolite runner and is equipped with the dust storage box.

As a preferred scheme of the utility model, a second gas injection pipe is arranged at the top of the working box, a combustion chamber is arranged in the working box, low-nitrogen burners are symmetrically arranged at the tops of inner walls of the combustion chamber, two heat insulation plates are equidistantly arranged on the inner walls of the combustion chamber, a partition plate is arranged on the inner wall of the working box and below the combustion chamber, discharge ports are equidistantly arranged in the partition plate, gas guide cylinders are equidistantly arranged between the partition plate and the bottom of the combustion chamber, exhaust ports are equidistantly arranged at the bottom of the combustion chamber and outside the gas guide cylinders, an activated carbon plate is equidistantly arranged in the working box and below the partition plate, and a liquid guide funnel is arranged below the activated carbon plate.

According to a preferable scheme of the utility model, a water tank is arranged at the bottom of the working box, a semiconductor refrigeration sheet is arranged outside the water tank, a water pump is arranged at the bottom of the inner wall of the water tank, a fixing support is arranged at the bottom of the inner wall of the water tank and on one side of the water pump, metal plates are symmetrically arranged inside the fixing support, the outsides of the two metal plates are fixedly connected with the refrigeration ends of the semiconductor refrigeration sheets, a transfusion opening is formed in the top of the water tank, and the transfusion opening is fixedly connected with a liquid guide funnel through a second transfusion pipe.

As a preferable scheme of the present invention, a purification box is arranged outside the working box, a placing plate is arranged inside the purification box, a second fan is arranged on the top of the placing plate, an input end of the second fan is fixedly connected with the inside of the second infusion tube through a first air delivery tube, a second air delivery tube is arranged inside the placing plate, and an output end of the second fan is fixedly connected with one end of the second air delivery tube.

As a preferable scheme of the utility model, the inner wall of the water tank is provided with a liquid level alarm.

As a preferable scheme of the utility model, the suction fans are arranged between the air cylinders, the atomizing nozzles are arranged on the inner wall of the air cylinders at equal intervals, the communicating joints are arranged between the atomizing nozzles, the atomizing nozzles are connected with the communicating joints through third liquid conveying pipes, the tops of the communicating joints are fixedly connected with the output end of the water pump through first liquid conveying pipes, the bottoms of the partition plates are provided with flushing nozzles at equal intervals, and the flushing nozzles are fixedly connected with the bottoms of the communicating joints through pipelines.

As a preferable scheme of the utility model, the top of the water tank is provided with air transmission holes at equal intervals.

As a preferable scheme of the utility model, one side of the inner wall of the pretreatment box is provided with a cleaning brush, and the other side of the inner wall of the pretreatment box is provided with a material guide plate.

As a preferred scheme of the utility model, a control panel is arranged outside the working box, and the servo motor, the first fan, the semiconductor refrigeration sheet, the water pump, the liquid level alarm, the second fan, the low-nitrogen burner and the exhaust fan are all electrically connected with the control panel.

The utility model has the following beneficial effects: based on not enough improving in current VOCs exhaust gas combustion device, combine prior art, provide one kind can the process more simple and convenient, the high efficiency treatment equipment that the device is simplified more to carry out better processing to VOCs produced waste gas after the burning, the device not only can provide the treatment effeciency, optimize numerous and diverse equipment, reduce cost, can handle the harmful substance in the waste gas moreover, thereby better environmental protection, the device easy operation, convenient and practical.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic overall perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic cross-sectional view taken along the line A-A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the structure at B in the present invention;

in the figure: 1. a control panel; 2. a pretreatment tank; 3. a work box; 4. a water tank; 5. a purification box; 6. a servo motor; 7. a dust storage box; 8. a material guide plate; 9. a first fan; 10. a semiconductor refrigeration sheet; 11. a water pump; 12. a first infusion tube; 13. a liquid guide funnel; 14. a metal plate; 15. a second infusion tube; 16. an infusion port; 17. a first air delivery pipe; 18. fixing a bracket; 19. a combustion chamber; 20. a heat insulation plate; 21. an activated carbon plate; 22. a liquid level alarm; 23. a second fan; 24. a second air delivery pipe; 25. a gas transmission hole; 26. placing the plate; 27. a partition plate; 28. a feeding port; 29. flushing the spray head; 30. rotating the rod; 31. a first gas injection tube; 32. a low-nitrogen burner; 33. connecting a pipeline; 34. a second gas injection tube; 35. a top cover; 36. an exhaust port; 37. a first filter plate; 38. a second filter plate; 39. a zeolite wheel; 40. a cleaning brush; 41. an atomizing spray head; 42. a communication joint; 43. a third infusion tube; 44. an exhaust fan; 45. an air guide cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a waste gas dust-settling device for low-nitrogen combustion of VOCs (volatile organic compounds) produced in a chemical manner comprises a pretreatment box 2 and a working box 3, which are respectively used for pretreatment and retreatment and an optimization treatment process, wherein the pretreatment box 2 is connected with the working box 3 through a connecting pipeline 33 and used for conveying waste gas for secondary treatment, a first fan 9 is arranged outside the connecting pipeline 33 and used for pumping the waste gas of the pretreatment box 2 into the working box 3, a top cover 35 is arranged at the top of the pretreatment box 2 and used for connecting a second gas injection pipe 34, a second gas injection pipe 34 is arranged at the top of the top cover 35 and used for introducing the waste gas, first filter plates 37 are equidistantly arranged in the pretreatment box 2 and used for treating particles larger than or equal to 5 mu m, second filter plates 38 are equidistantly arranged in the pretreatment box 2 and below the first filter plates 37 and used for treating particles larger than or equal to 1 mu m, and a rotating rod 30 is rotatably connected in the pretreatment box 2 and below the second filter plates 38, the zeolite rotating wheel 39 is used for driving the zeolite rotating wheel 39 to rotate, the zeolite rotating wheel 39 is arranged on the outer portion of the rotating rod 30 at equal intervals, modified zeolite is used as an adsorbing material, the content of the waste zeolite reaches over 70%, 10-40 times of concentration can be achieved, the purification efficiency can reach 90%, the servo motor 6 is arranged on the outer portion of the pretreatment box 2, a power source is provided for rotation of the zeolite rotating wheel 39, the output end of the servo motor 6 is fixedly connected with one end of the rotating rod 30, and a dust storage box 7 is arranged at the bottom of the inner wall of the pretreatment box 2 and below the zeolite rotating wheel 39 and used for collecting dust and impurities in a centralized mode.

Further, a second gas injection pipe 34 is arranged at the top of the working box 3, a combustion chamber 19 is arranged in the working box 3 and is used for fully combusting waste gas, low-nitrogen burners 32 are symmetrically arranged at the tops of inner walls of the combustion chamber 19, an optimal combustion environment can be obtained by adjusting combustion air and a combustion head, two heat insulation plates 20 are arranged on the inner wall of the combustion chamber 19 at equal intervals and are used for blocking high temperature and avoiding parts from being burnt by hot waves, a partition plate 27 is arranged on the inner wall of the working box 3 and below the combustion chamber 19, discharge ports 28 are arranged in the partition plate 27 at equal intervals, gas guide cylinders 45 are arranged between the partition plate 27 and the bottom of the combustion chamber 19 at equal intervals and are used for carrying out condensation treatment, exhaust ports 36 are arranged at equal intervals at the bottom of the combustion chamber 19 and outside the gas guide cylinders 45 and are used for guiding out combusted gas, activated carbon plates 21 are arranged in the working box 3 and below the partition plate 27 at equal intervals, the adsorption is good physical adsorption by fluid and porous solid particles (adsorbent) with surface pressure, and a liquid guide funnel 13 is arranged below the activated carbon plate 21 and used for collecting cooling liquid in a centralized manner.

Further, the bottom of work box 3 is equipped with water tank 4, be used for placing the required coolant liquid of condensation treatment, the outside of water tank 4 is equipped with semiconductor refrigeration piece 10, be used for refrigeration, the bottom of 4 inner walls of water tank is equipped with water pump 11, be used for carrying the coolant liquid, the bottom of 4 inner walls of water tank and the one side that is located water pump 11 are equipped with fixed bolster 18, be used for fixed metal sheet 14, the inside symmetry of fixed bolster 18 is equipped with metal sheet 14, be used for cooperating semiconductor refrigeration piece 10 more efficient to cool off the coolant liquid, the outside of two metal sheets 14 all with the refrigeration end fixed connection of semiconductor refrigeration piece 10, infusion mouth 16 has been seted up at the top of water tank 4, be used for accepting used coolant liquid and carry out cyclic utilization, through second transfer line 15 fixed connection between infusion mouth 16 and the drain funnel 13.

Further, the outside of work box 3 is equipped with purifying box 5 for place the required solution of neutralization waste gas, make it can be neutralized and purify, reuse, purifying box 5's inside is equipped with places board 26, the top of placing board 26 is equipped with second fan 23, a leading-in purifying box 5 of extraction waste gas, the input of second fan 23 and the inside of second transfer line 15 are through first defeated tuber pipe 17 fixed connection, the inside of placing board 26 is equipped with second defeated tuber pipe 24, a leading-in neutralization solution inside for with waste gas, wherein the abundant reaction, the output of second fan 23 and the one end fixed connection of second defeated tuber pipe 24.

Further, a liquid level alarm 22 is arranged on the inner wall of the water tank 4, and when the cooling liquid is insufficient, an alarm is given out to remind workers of filling in time.

Further, all be equipped with the extraction fan 44 between the gas holder 45 for gas after burning treatment is drawn forth and is carried out condensation treatment, the interior jade equidistance of gas holder 45 is equipped with atomizer 41, be used for atomizing the coolant liquid, thereby spray waste gas, condensation treatment, all be equipped with between atomizer 41 and connect the 42, be used for dividing and leading the coolant liquid, all be connected through third transfer line 43 between atomizer 41 and the connect the 42, the top of connect the 42 and the output of water pump 11 all pass through first transfer line 12 fixed connection, the bottom equidistance of baffle 27 is equipped with erodees shower nozzle 29, be used for erodeing and wasing activated carbon plate 21, it passes through pipeline fixed connection with connect the bottom of 42 to erode shower nozzle 29.

Further, the top of the water tank 4 is provided with air delivery holes 25 at equal intervals for discharging the gas which can be reused after neutralization.

Furthermore, one side of the inner wall of the pretreatment tank 2 is provided with a cleaning brush 40 for cleaning impurities and dust outside the zeolite rotating wheel 39 to make the impurities and dust fall into the dust storage tank 7, and the other side of the inner wall of the pretreatment tank 2 is provided with a guide plate 8 for guiding the impurities in the waste gas into the zeolite rotating wheel 39 to avoid scattering the impurities all around.

Further, the outside of work box 3 is equipped with control panel 1 for control a plurality of electrical components handle waste gas, and servo motor 6, first fan 9, semiconductor refrigeration piece 10, water pump 11, liquid level siren 22, second fan 23, low nitrogen combustor 32 and exhaust fan 44 all with control panel 1 electric connection.

When the utility model is used, firstly, the servo motor 6, the first fan 9 and the semiconductor refrigeration sheet 10 are driven to work simultaneously through the control panel 1, the semiconductor refrigeration sheet 10 cools the cooling liquid in the water tank 4, the waste gas is injected into the pretreatment tank 2 through the second gas injection pipe 34, the waste gas is primarily filtered through the first filter plate 37 and the second filter plate 38, the servo motor 6 drives the zeolite rotating wheel 39 to desorb impurities in the waste gas through the rotating rod 30, the cleaning brush 40 cleans the impurities and dust while the zeolite rotating wheel 39 rotates, and then the impurities and the dust fall into the dust storage tank 7, then, under the action of the first fan 9, the primarily filtered waste is led into the combustion chamber 19 in the working tank 3, the combustion-supporting gas required by the low-nitrogen burner 32 is injected into the combustion chamber 19 through the first gas injection pipe 31, and the low-nitrogen burner 32 is driven to work simultaneously, incinerating the waste gas, guiding the incinerated gas through the heat insulation board 20, discharging the incinerated gas along the exhaust port 36 at the bottom of the combustion chamber 19, driving the suction fan 44 and the water pump 11 to work simultaneously, injecting the cooling liquid in the water tank 4 into the communication joint 42 through the first liquid conveying pipe 12 by the water pump 11, then injecting the cooling liquid into the atomizing nozzle 41 through the third liquid conveying pipe 43, cooling the incinerated gas by the atomizing nozzle 41 through the cooling liquid, adsorbing the cooled waste gas after passing through the activated carbon plate 21, injecting the liquid into the water tank 4 along the liquid guide funnel 13 for recycling, driving the second fan 23 to work, extracting the condensed waste gas along the second liquid conveying pipe 15, guiding the condensed waste gas into the purification tank 5 through the second air conveying pipe 24, neutralizing the gas and the reaction solution in the purification tank 5, safe nontoxic gas is discharged along the inside of gas transmission hole 25, and finally, the outside chamber door of pretreatment tank 2 is opened, and dust storage tank 7 is taken out, and the dust in dust storage tank 7 can be cleaned.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" 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 the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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. The utility model provides a low nitrogen for burning waste gas dust device of VOCs is produced in ization, includes pretreatment tank (2) and work box (3), its characterized in that, be connected through connecting tube (33) between pretreatment tank (2) and the work box (3), the outside of connecting tube (33) is equipped with first fan (9), the top of pretreatment tank (2) is equipped with top cap (35), the top of top cap (35) is equipped with second gas injection pipe (34), the inside equidistance of pretreatment tank (2) is equipped with first filter (37), the inside of pretreatment tank (2) just is located the below equidistance of first filter (37) and is equipped with second filter (38), the inside of pretreatment tank (2) just is located the below rotation of second filter (38) and is connected with dwang (30), the outside equidistance of dwang (30) is equipped with zeolite runner (39), the outside of preliminary treatment case (2) is equipped with servo motor (6), the output of servo motor (6) and the one end fixed connection of dwang (30), the bottom of jade just is located the below that zeolite runner (39) is equipped with dust storage box (7) in preliminary treatment case (2).

2. The device of claim 1, wherein the device for reducing dust in waste gas generated by low-nitrogen combustion of VOCs comprises: a first gas injection pipe (31) is arranged at the top of the working box (3), a combustion chamber (19) is arranged in the working box (3), the top of the inner wall of the combustion chamber (19) is symmetrically provided with low-nitrogen burners (32), two heat insulation plates (20) are equidistantly arranged on the inner wall of the combustion chamber (19), a partition plate (27) is arranged on the inner wall of the working box (3) and below the combustion chamber (19), the inner part of the clapboard (27) is equidistantly provided with a feed opening (28), the bottom of the clapboard (27) and the combustion chamber (19) is equidistantly provided with air cylinders (45), the bottom of the combustion chamber (19) and the outer side of the gas cylinder (45) are provided with gas outlets (36) at equal intervals, the inside of work box (3) and the below equidistance that is located baffle (27) are equipped with activated carbon plate (21), the below of activated carbon plate (21) is equipped with drain funnel (13).

3. The device for reducing dust in waste gas generated by low-nitrogen combustion of VOCs according to claim 2, characterized in that: the bottom of work box (3) is equipped with water tank (4), the outside of water tank (4) is equipped with semiconductor refrigeration piece (10), the bottom of water tank (4) inner wall is equipped with water pump (11), the bottom of water tank (4) inner wall and the one side that is located water pump (11) are equipped with fixed bolster (18), the inside symmetry of fixed bolster (18) is equipped with metal sheet (14), two the outside of metal sheet (14) all with the refrigeration end fixed connection of semiconductor refrigeration piece (10), infusion mouth (16) have been seted up at the top of water tank (4), through second transfer line (15) fixed connection between infusion mouth (16) and drain funnel (13).

4. The device of claim 3, wherein the device for reducing dust in waste gas generated by low-nitrogen combustion of VOCs comprises: the outside of work box (3) is equipped with purifying box (5), the inside of purifying box (5) is equipped with places board (26), the top of placing board (26) is equipped with second fan (23), the input of second fan (23) and the inside of second transfer line (15) are through first defeated tuber pipe (17) fixed connection, the inside of placing board (26) is equipped with second defeated tuber pipe (24), the output of second fan (23) and the one end fixed connection of second defeated tuber pipe (24).

5. The device of claim 4, wherein the device for reducing dust in waste gas generated by low-nitrogen combustion of VOCs comprises: and a liquid level alarm (22) is arranged on the inner wall of the water tank (4).

6. The device of claim 5, wherein the device for reducing dust in waste gas generated by low-nitrogen combustion of VOCs comprises: all be equipped with suction fan (44) between gas cylinder (45), the interior jade equidistance of gas cylinder (45) is equipped with atomizer (41), all be equipped with between atomizer (41) and communicate and connect (42), all be connected through third transfer line (43) between atomizer (41) and the intercommunication connects (42), the top that the intercommunication connects (42) all passes through first transfer line (12) fixed connection with the output of water pump (11), the bottom equidistance of baffle (27) is equipped with washes out shower nozzle (29), wash out shower nozzle (29) and communicate the bottom that connects (42) and pass through pipeline fixed connection.

7. The device of claim 3, wherein the device for reducing dust in waste gas generated by low-nitrogen combustion of VOCs comprises: and air transmission holes (25) are formed in the top of the water tank (4) at equal intervals.

8. The device of claim 1, wherein the device for reducing dust in waste gas generated by low-nitrogen combustion of VOCs comprises: one side of the inner wall of the pretreatment box (2) is provided with a cleaning brush (40), and the other side of the inner wall of the pretreatment box (2) is provided with a material guide plate (8).

9. The device of claim 6, wherein the device for reducing dust in waste gas generated by low-nitrogen combustion of VOCs comprises: the working box is characterized in that a control panel (1) is arranged outside the working box (3), and the servo motor (6), the first fan (9), the semiconductor refrigeration sheet (10), the water pump (11), the liquid level alarm (22), the second fan (23), the low-nitrogen combustor (32) and the exhaust fan (44) are all electrically connected with the control panel (1).

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