CN214715675U

CN214715675U - VOC (volatile organic compound) waste gas treatment device for printing workshop

Info

Publication number: CN214715675U
Application number: CN202120437863.0U
Authority: CN
Inventors: 谢作领; 万文峰
Original assignee: Urumqi Yilong Xiangrui Packaging Printing Co ltd
Current assignee: Urumqi Yilong Xiangrui Packaging Printing Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-11-16
Anticipated expiration: 2031-03-01

Abstract

The utility model belongs to the technical field of the exhaust-gas treatment technique and specifically relates to a VOC exhaust treatment device for print shop is to the problem that the operation is comparatively complicated is changed to waste gas treatment inefficiency, filter media among the prior art, now proposes following scheme, and it includes the casing, the inboard bottom of casing is provided with the bioabsorption solution, the inside rigid coupling of casing has the diaphragm, the cavity intermediate layer has been seted up to the inside of diaphragm, the bottom thread bush of diaphragm is equipped with multiunit standpipe, multiunit the top of standpipe all extends to cavity interbedded inside, multiunit suck-back prevention mechanism is all installed to the inboard bottom of standpipe. The utility model discloses rational in infrastructure, stable in structure, easy operation has not only realized handling the VOC waste gas, and the effectual VOC waste gas of having guaranteed is fully absorbed the purification, still conveniently changes biological absorption solution and active carbon, easily uses widely.

Description

VOC (volatile organic compound) waste gas treatment device for printing workshop

Technical Field

The utility model relates to a waste gas treatment field especially relates to a VOC exhaust treatment device for print shop.

Background

The VOC waste gas is also organic waste gas, is a general name of volatile organic compounds, the VOC waste gas is often generated in the production process of a printing workshop, the volatile organic compounds have influence and harm on various aspects of human health, and the human body function can be greatly damaged when the VOC waste gas is contacted with the volatile organic compounds for a long time or is in an environment with high content of the volatile organic compounds.

The purification treatment mode of prior art china to VOC waste gas mainly has the burning, the catalyst burns, activated carbon adsorption, wet-type washing, condense, light oxidation and biological treatment etc., wherein activated carbon adsorption mode is comparatively simple, the application is also comparatively extensive, but this kind of simple activated carbon adsorption equipment structure is too simple, the VOC waste gas is difficult to fully contact with adsorption medium, and then make VOC exhaust-gas treatment's efficiency lower, and traditional VOC exhaust-gas treatment device is when changing the filter media, the operation is comparatively complicated, therefore, this scheme provides a VOC exhaust-gas treatment device for the printing workshop.

SUMMERY OF THE UTILITY MODEL

The utility model provides a VOC exhaust treatment device for print shop has solved among the prior art problem that exhaust treatment is inefficient, the operation is comparatively complicated is changed to the filter media.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a VOC waste gas treatment device for a printing workshop comprises a shell, wherein a biological absorption solution is arranged at the bottom of the inner side of the shell, a transverse plate is fixedly connected inside the shell, a hollow interlayer is arranged inside the transverse plate, a plurality of groups of vertical pipes are sleeved at the bottom of the transverse plate in a threaded manner, the tops of the groups of vertical pipes extend into the hollow interlayer, a suck-back prevention mechanism is arranged at the bottom of the inner sides of the groups of vertical pipes, a plurality of groups of air risers are fixedly sleeved at the top of the transverse plate, the bottoms of the plurality of groups of air risers extend to the bottom of the transverse plate through the hollow interlayer, a fan is arranged at one side of the outer part of the shell, an air inlet pipe is fixedly connected at the air inlet end of the fan, a connecting pipe is fixedly connected at the air outlet end of the fan, the other end of the connecting pipe extends into the hollow interlayer, a liquid discharge pipe is fixedly connected at the bottom of the outer side of the shell, and a liquid inlet pipe is arranged right above the liquid discharge pipe, the liquid inlet pipe and the liquid discharge pipe are arranged at one end of the shell and extend to the inside of the shell, one end, located inside the shell, of the liquid inlet pipe is located under the transverse plate, valves are arranged at one ends, located outside the shell, of the liquid inlet pipe and the liquid discharge pipe, fillers are filled inside the shell and located at the top of the transverse plate, and a plurality of groups of filtering mechanisms are arranged at the top of the shell.

Preferably, its characterized in that, prevent that suck-back mechanism includes that the rigid coupling is established at the inside bracing piece of standpipe, the sleeve at bracing piece top, rigid coupling at the spring of the inboard bottom of sleeve, activity cover at the inside spliced pole of sleeve, the bottom of spliced pole and the top rigid coupling of spring, the top of spliced pole extends to telescopic outside, the top rigid coupling of spliced pole has a top ball, the inside lateral wall rigid coupling of standpipe has a top ring, the top ring is located directly over the top ball, and top ring and top ball mutually support.

Preferably, its characterized in that, filtering mechanism includes the box, the fixed cover in bottom of box is equipped with the bottom tube, the top of bottom tube extends to the inside of box, the bottom of bottom tube cup joints with the top screw thread of casing, and the bottom of bottom tube extends to the inside of casing, the inside packing of box has the active carbon, the multiunit gas outlet has evenly been seted up at the top of box.

Preferably, a liquid level meter is arranged on one side of the front face of the shell.

Preferably, the plurality of groups of filtering mechanisms are distributed equidistantly.

Preferably, the top of the inner side of each of the plurality of groups of draft tubes is fixedly connected with a filter screen.

The utility model has the advantages that:

1. through air-supply line, fan, connecting pipe, diaphragm, standpipe etc. and mutually support for the inside that contains volatile organic compounds enters into the casing fully contacts with biological absorption solution, and the effectual VOC waste gas furthest of having guaranteed is absorbed by biological absorption solution.

2. Through mutually supporting such as feed liquor pipe, fluid-discharge tube, the realization carries out quick replacement to the inside biological absorption solution of casing, and box and casing threaded connection conveniently change the box, and then the effectual change efficiency of guaranteeing biological absorption solution and active carbon.

The utility model discloses rational in infrastructure, stable in structure, easy operation has not only realized handling the VOC waste gas, and the effectual VOC waste gas of having guaranteed is fully absorbed the purification, still conveniently changes biological absorption solution and active carbon, easily uses widely.

Drawings

Fig. 1 is a front sectional view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is an enlarged view of a point a of the present invention.

Reference numbers in the figures: 1. a housing; 2. a transverse plate; 3. a hollow interlayer; 4. a vertical tube; 5. a gas lift pipe; 6. a fan; 7. an air inlet pipe; 8. a connecting pipe; 9. a support bar; 10. a sleeve; 11. a spring; 12. connecting columns; 13. ejecting the ball; 14. a top ring; 15. a liquid discharge pipe; 16. a liquid inlet pipe; 17. a filler; 18. a bottom tube; 19. a box body; 20. an air outlet; 21. activated carbon; 22. a liquid level meter; 23. a bioabsorbable solution; 24. and (5) filtering by using a filter screen.

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.

Referring to fig. 1-3, a VOC waste gas treatment device for a printing workshop, comprising a housing 1, wherein a biological absorption solution 23 is arranged at the bottom of the inner side of the housing 1, a transverse plate 2 is fixedly connected inside the housing 1, the transverse plate 2 is horizontally arranged to divide the housing 1 into an upper area and a lower area, a hollow interlayer 3 is arranged inside the transverse plate 2, a plurality of sets of vertical tubes 4 are sleeved at the bottom of the transverse plate 2 in a threaded manner, the tops of the plurality of sets of vertical tubes 4 extend into the hollow interlayer 3, the plurality of sets of vertical tubes 4 are uniformly distributed, the bottoms of the plurality of sets of vertical tubes extend below the liquid level of the biological absorption solution 23, a plurality of sets of air risers 5 are fixedly sleeved at the top of the transverse plate 2, the bottoms of the plurality of air risers 5 extend to the bottom of the transverse plate 2 through the hollow interlayer 3, a fan 6 is arranged at one side of the outer part of the housing 1, an air inlet end of the fan 6 is fixedly connected with an air inlet pipe 7, and an air outlet end of the fan 6 is fixedly connected with a connecting pipe 8, the other end of the connecting pipe 8 extends to the inside of the hollow interlayer 3, the other end of the air inlet pipe 7 is connected with an air pipe of a printing workshop, the fan 6 rotates to draw out waste gas in the printing workshop, the waste gas enters the hollow interlayer 3 in the transverse plate 2 and then enters the liquid level below the liquid level of the biological absorption solution 23 through a plurality of groups of vertical pipes 4, the biological absorption solution 23 absorbs volatile organic compounds in the gas and then rises from the air lifting pipe 5 to be discharged to the top of the transverse plate 2, a liquid level meter 22 is arranged on one side of the front surface of the shell 1, a liquid discharge pipe 15 is fixedly connected to the bottom of the outer side of the shell 1, a liquid inlet pipe 16 is arranged right above the liquid discharge pipe 15, one ends of the liquid inlet pipe 16 and the liquid discharge pipe 15 both extend to the inside of the shell 1, one end of the liquid inlet pipe 16, which is positioned inside the shell 1, and one ends of the liquid discharge pipe 16 and the liquid discharge pipe 15, which are positioned outside the shell 1, are both provided with valves, when the valve on the liquid discharge pipe 15 is opened, the biological absorption solution 23 is discharged to the outside of the casing 1 through the liquid discharge pipe 15, and when the biological absorption solution 23 needs to be supplemented to the inside of the casing 1, the valve on the liquid discharge pipe 15 is closed, the valve on the liquid inlet pipe 16 is opened, and the biological absorption solution 23 is supplemented to the inside of the casing 1 by referring to the liquid level meter 22 outside the casing 1.

The bottom of the inner side of a plurality of groups of vertical pipes 4 is provided with a suck-back prevention mechanism, the suck-back prevention mechanism comprises a support rod 9 fixedly connected inside the vertical pipe 4, the top of the support rod 9 is fixedly connected with a sleeve 10, the bottom of the inner side of the sleeve 10 is fixedly connected with a spring 11, a connecting column 12 is movably sleeved inside the sleeve 10, the bottom of the connecting column 12 is fixedly connected with the top of the spring 11, the top of the connecting column 12 extends to the outside of the sleeve 10, the top of the connecting column 12 is fixedly connected with a top ball 13, the inner side wall of the vertical pipe 4 is fixedly connected with a top ring 14, the top ring 14 is positioned right above the top ball 13, the top ring 14 is matched with the top ball 13, gas containing volatile waste gas moves downwards through the vertical pipe 4 and presses the top ball 13 downwards, the spring 11 is compressed, the top ball 13 is separated from the top ring 14, the gas is discharged into the biological absorption solution 23 from the bottom of the vertical pipe 4, when the fan 6 is powered off, under the action of the spring 11, the top ball 13 and the top ring 14 are mutually matched, so that the vertical pipe 4 is closed, the biological absorption solution 23 is prevented from reacting with the waste gas in the pipeline, and the biological absorption solution 23 is sucked into the transverse plate 2 in a reverse way when the volume of the waste gas is changed due to the absorption of VOC.

The inside of the casing 1 is filled with a filler 17, the filler 17 is located at the top of the transverse plate 2, the tops of the inner sides of the plurality of groups of gas risers 5 are fixedly connected with a filter screen 24, the aperture of the filter screen 24 is far smaller than the particle size of the filler 17, the filler 17 comprises packing media such as ceramsite, activated carbon particles and coconut shell particles, the top of the casing 1 is provided with a plurality of groups of filter mechanisms which are distributed at equal intervals, each group of filter mechanisms comprises a casing 19, the bottom of the casing 19 is fixedly sleeved with a bottom pipe 18, the top of the bottom pipe 18 extends to the inside of the casing 19, the bottom of the bottom pipe 18 is in threaded sleeve joint with the top of the casing 1, the bottom of the bottom pipe 18 extends to the inside of the casing 1, the inside of the casing 19 is filled with activated carbon 21, the top of the casing 19 is uniformly provided with a plurality of groups of gas outlets 20, gas absorbed by the biological absorption solution 23 rises from the gas risers 5 and contacts with the filler 17 at the top of the transverse plate 2, the exhaust gas in the gas is further absorbed, and the exhaust gas absorbed by the filler 17 continues to rise, enters the inside of the case 19, is adsorbed by the activated carbon 21 in the case 19, and is then discharged to the environment through the gas outlet 20.

The working principle is as follows: one end of an air inlet pipe 7, which is far away from a fan 6, is connected with an air pipe of a printing workshop, the liquid level of the bioabsorption solution 23 stored in the shell 1 is observed to be at a normal liquid level height, when VOC waste gas in the printing workshop needs to be treated, a power supply of the fan 6 is connected, the air in the printing workshop is conveyed into the hollow interlayer 3 through the air inlet pipe 7 by the fan 6, the air enters the hollow interlayer 3 and moves downwards along a plurality of groups of vertical pipes 4, the gas containing volatile waste gas moves downwards through the vertical pipes 4 and extrudes the top balls 13 downwards, so that the springs 11 are compressed, the top balls 13 are separated from the top rings 14, the gas is discharged from the bottoms of the vertical pipes 4, and the gas discharged from the bottoms of the vertical pipes 4 is positioned below the liquid level of the bioabsorption solution 23 and repeatedly contacts with the bioabsorption solution after entering the bottoms of the bioabsorption solution 23, volatile organic compounds in the gas are purified and absorbed, VOC waste gas is absorbed and purified to the greatest extent, the purified gas rises to the top of the transverse plate 2 from a plurality of groups of gas risers 5 and is adsorbed by the filler 17, residual waste gas in the gas is adsorbed, the adsorbed gas enters the box body 19 through the bottom pipe 18 and is further adsorbed by the activated carbon 21 in the box body 19 and then is discharged from the gas outlet 20, the gas entering the shell body 1 is sequentially purified and absorbed by the biological absorption solution 23, the filler 17 and the activated carbon 21, the absorption treatment efficiency of the VOC waste gas is ensured, when the fan 6 is powered off, the top ball 13 and the top ring 14 are mutually matched under the action of the spring 11, the vertical pipe 4 is closed, the biological absorption solution 23 is prevented from reacting with the waste gas in the pipeline, the biological absorption treatment efficiency of the VOC waste gas is ensured, the biological absorption solution 23 is reversely sucked into the transverse plate 2 under the condition of volume change, when the biological absorption solution 23 in the shell 1 needs to be discharged, a valve on the liquid discharge pipe 15 is opened, the biological absorption solution 23 is discharged to the outside of the shell 1 through the liquid discharge pipe 15, when the biological absorption solution 23 needs to be supplemented into the shell 1, the valve on the liquid discharge pipe 15 is closed, a valve on the liquid inlet pipe 16 is opened, the biological absorption solution 23 is supplemented into the shell 1 by referring to a liquid level meter 22 outside the shell 1, when the activated carbon 21 needs to be replaced, the bottom pipe 18 is unscrewed, a new box body 19 is replaced, and the new box body 19 is installed at the top of the shell 1.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The VOC waste gas treatment device for the printing workshop comprises a shell (1) and is characterized in that a biological absorption solution (23) is arranged at the bottom of the inner side of the shell (1), a transverse plate (2) is fixedly connected to the inside of the shell (1), a hollow interlayer (3) is arranged inside the transverse plate (2), a plurality of groups of vertical pipes (4) are sleeved on the bottom of the transverse plate (2) in a threaded manner, the tops of the plurality of groups of vertical pipes (4) extend into the hollow interlayer (3), a suck-back prevention mechanism is arranged at the bottom of the inner side of the plurality of groups of vertical pipes (4), a plurality of groups of air risers (5) are fixedly sleeved at the top of the transverse plate (2), the bottoms of the plurality of groups of air risers (5) extend to the bottom of the transverse plate (2) through the hollow interlayer (3), a fan (6) is arranged at one side of the outside of the shell (1), and an air inlet end of the fan (6) is fixedly connected with an air inlet pipe (7), the air-out end rigid coupling of fan (6) has connecting pipe (8), the other end of connecting pipe (8) extends to the inside of cavity intermediate layer (3), the outside bottom rigid coupling of casing (1) has fluid-discharge tube (15), be provided with feed liquor pipe (16) directly over fluid-discharge tube (15), feed liquor pipe (16) all extend to the inside of casing (1) with the one end of fluid-discharge tube (15), and feed liquor pipe (16) are located casing (1) inside one end and are located diaphragm (2) under, feed liquor pipe (16) all install the valve with the one end that fluid-discharge tube (15) are located casing (1) outside, the inside packing of casing (1) has filler (17), and filler (17) are located the top of diaphragm (2), the top of casing (1) is provided with multiunit filtering mechanism.

2. The VOC waste gas treatment device for the printing workshop according to claim 1, wherein the suck-back prevention mechanism comprises a support rod (9) fixedly connected inside a vertical pipe (4), a sleeve (10) fixedly connected to the top of the support rod (9), a spring (11) fixedly connected to the inner bottom of the sleeve (10), and a connecting column (12) movably sleeved inside the sleeve (10), wherein the bottom of the connecting column (12) is fixedly connected to the top of the spring (11), the top of the connecting column (12) extends to the outside of the sleeve (10), the top of the connecting column (12) is fixedly connected to a top ball (13), the inner side wall of the vertical pipe (4) is fixedly connected to a top ring (14), the top ring (14) is located right above the top ball (13), and the top ring (14) and the top ball (13) are matched with each other.

3. The VOC waste gas treatment device for the printing workshop according to claim 1, wherein the filtering mechanism comprises a box body (19), a bottom pipe (18) is fixedly sleeved at the bottom of the box body (19), the top of the bottom pipe (18) extends to the inside of the box body (19), the bottom of the bottom pipe (18) is in threaded sleeve connection with the top of the shell (1), the bottom of the bottom pipe (18) extends to the inside of the shell (1), activated carbon (21) is filled in the box body (19), and a plurality of groups of gas outlets (20) are uniformly formed in the top of the box body (19).

4. The VOC exhaust gas treatment device for a printing shop according to claim 1, characterized in that a liquid level meter (22) is provided on the front side of the housing (1).

5. A VOC exhaust treatment device for a press shop according to claim 1 wherein a plurality of sets of the filter means are equally spaced.

6. The VOC waste gas treatment device for the printing workshop according to claim 1, characterized in that a filter screen (24) is fixedly connected to the top of the inner side of each of the plurality of groups of draft tubes (5).