Cut tobacco waste gas cross flow purification treatment system

Abstract

The utility model relates to a tobacco shred waste gas cross flow purification treatment system which comprises a water pool, a treatment box used for treating pollutants in smoke and a separation box used for gas-liquid separation, one side of the treatment box is provided with a smoke inlet pipe, the other side of the treatment box is provided with a mixed gas outlet pipe, and the mixed gas outlet pipe is communicated with the separation box; a liquid inlet device is arranged on the treatment box; liquid medicine in the water pool is communicated with the treatment box through the liquid inlet device; a filler for absorbing pollutants in flue gas is arranged in the treatment box, and gas and liquid are separated by the separation box; the waste gas treatment device disclosed by the utility model has the beneficial effects that liquid is fully mixed with waste gas through cross jet flow of the treatment box, toxic and harmful substances in the waste gas are dissolved in water, harmless treatment is carried out, and liquid in the gas is separated through the separation box, so that the influence on the environment due to overhigh water content of the emptied gas is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment generated in a silk-making workshop, in particular to a cross-flow purification treatment system for cigarette waste gas. Background Art

[0002] The waste gas generated on-site in the silk-making workshop is mainly the tar gas generated when tobacco leaves and cut tobacco are baked; ammonia, benzene, phenol, toluene, methanol, acetone, butane, acetic acid, acrylonitrile, etc. will be volatilized; the current treatment method is that the waste gas is passed through a treatment pool and then the wastewater enters the municipal sewage treatment plant through the sewage pipeline, and the waste gas after passing through the water is directly discharged. It is found in use that water needs to be replenished to the treatment pool frequently, and at the same time, the environmental protection department of the company detects that the humidity of the discharged gas is too high and needs to be solved. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a cross-flow purification treatment system for cigarette waste gas, which can carry out gas-liquid separation after treating the waste gas, minimize the loss of water as much as possible, and at the same time make the discharged gas meet the environmental protection requirements.

[0004] To solve the above problems, the utility model adopts the following technical scheme:

[0005] A cross-flow purification treatment system for cigarette waste gas includes a water pool, a treatment box for treating pollutants in the flue gas, and a separation box for gas-liquid separation. A flue gas inlet pipe is provided on one side of the treatment box, a mixed gas outlet pipe is provided on the other side of the treatment box, and the mixed gas outlet pipe is communicated with the separation box; a liquid inlet device is provided on the treatment box; the liquid inlet device connects the liquid medicine in the water pool with the treatment box; a filler for absorbing pollutants in the flue gas is provided in the treatment box.

[0006] Further, the liquid inlet device includes a water pump, a first spray head and a second spray head communicated with the water pump; the first spray head is installed on the side of the treatment box where the flue gas inlet pipe is provided; the second spray head is installed on the top of the treatment box.

[0007] Further, the filler is a polypropylene multi-faceted hollow ball filler.

[0008] Further, both the first spray head and the second spray head are located above the flue gas inlet pipe.

[0009] Further, the separation box includes a box body; the box body includes a front side plate, a rear side plate, a left side plate, a right side plate, a top plate and a bottom plate; a filter screen is provided between the top plate and the bottom plate; the middle of the left side plate is communicated with the mixed gas outlet pipe; an air outlet is provided in the middle of the right side plate; the filter screen is located below the mixed gas outlet pipe and the air outlet.

[0010] Further, the separation box further includes a first water collecting plate, a second water collecting plate, and a third water collecting plate sequentially arranged between the left side plate and the right side plate; the first water collecting plate, the second water collecting plate, and the third water collecting plate are all located above the filter screen; there is a gap between the first water collecting plate and the top plate; one end of the second water collecting plate is hermetically fixed to the top plate; there is a gap between the other end of the second water collecting plate and the filter screen; there is a gap between the third water collecting plate and the top plate; the first water collecting plate, the second water collecting plate, and the third water collecting plate are all perpendicularly fixed to the front side plate and the rear side plate; the first water collecting plate, the second water collecting plate, and the third water collecting plate are all parallel to the left side plate and the right side plate.

[0011] Further, a liquid level sensor, a liquid outlet valve, and a controller are provided on the separation box; the liquid level sensor is located below the filter screen and above the liquid outlet valve; the controller is respectively signal-connected to the liquid level sensor and the liquid outlet valve.

[0012] Further, the first water collecting plate, the second water collecting plate, and the third water collecting plate are all stainless steel corrugated plates.

[0013] Further, hydrophilic rubber layers are provided on both sides of the first water collecting plate, the second water collecting plate, and the third water collecting plate.

[0014] The water tank is further provided with a conductivity meter, a pH meter, and a dosing system, and the conductivity meter, the pH meter, and the dosing system are all electrically connected to the control circuit system.

[0015] The beneficial effects of the present application are as follows: By adopting the first spray head with a transverse flow in the same direction as the waste gas flow and combining it with the second spray head with a longitudinal flow, the cross-flow spraying method enables the sprayed water to contact the waste gas in the same direction and crosswise, effectively improving the treatment efficiency while reducing the pressure loss; the unique design of the gas-liquid separation device makes the humidity of the treated waste gas as low as 80%, and it can be directly connected to other devices for use; a perfect water quality monitoring device is equipped, and the water quality is automatically adjusted through the circuit control system, enabling the water in the water tank to be effectively utilized and greatly saving water consumption.

[0016] The horizontal cross-flow treatment box device realizes the full automation of the operation and control of the waste gas treatment system, and has the advantages of small floor area, simple installation, safe and reliable operation, high temperature resistance, corrosion resistance, small equipment pressure loss, long service life, and high waste gas treatment efficiency.

[0017] By setting the water collecting plate as a corrugated plate, the water collecting area can be increased and the water collecting efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the main structural schematic view of the present utility model;

[0019] Figure 2It is a schematic structural diagram of a gas-liquid separation device;

[0020] Figure 3 It is Figure 2 the enlarged view signal at position B of

[0021] Figure 4 It is a schematic structural diagram of the first water collecting plate;

[0022] Figure 5 It is Figure 4 the enlarged view at position A of

[0023] The reference numerals in the figure,

[0024] Water tank 1, flue gas inlet pipe 2, treatment tank 3, first spray head 4, polypropylene multi-faceted hollow sphere packing 5, second spray head 6, water pump 7, separation tank 8, mixed gas outlet pipe 9, 81 - box body, rear side plate 811, left side plate 812, front side plate 813, right side plate 814, first water collecting plate 82, second water collecting plate 83, third water collecting plate 84, air outlet 85, liquid level sensor 86, liquid outlet valve 87, filter screen 88. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; the described embodiments are only a part of the embodiments of the present invention; rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] Embodiment 1

[0027] As Figures 1-3 shown,

[0028] A cross-flow purification treatment system for cut tobacco waste gas includes a water tank 1, a treatment tank 3 for treating pollutants in flue gas, and a separation tank 8 for gas-liquid separation. A flue gas inlet pipe 2 is provided on one side of the treatment tank 3, and a mixed gas outlet pipe 9 is provided on the other side of the treatment tank 3. The mixed gas outlet pipe 9 is communicated with the separation tank 8; a liquid inlet device is provided on the treatment tank 3; the liquid inlet device communicates the liquid medicine in the water tank 1 with the treatment tank 3; and a filler for absorbing pollutants in the flue gas is provided in the treatment tank 3.

[0029] The liquid inlet device includes a water pump 7, a first spray head 4 and a second spray head 6 communicated with the water pump 7; the first spray head 4 is installed on the side of the treatment tank 3 where the flue gas inlet pipe 2 is provided; and the second spray head 6 is installed on the top of the treatment tank 3.

[0030] The packing is polypropylene multi-faceted hollow sphere packing 5. Polypropylene multi-faceted hollow spheres have the characteristics of small resistance; large specific surface area, which can fully solve problems such as gas-liquid exchange;

[0031] A liquid outlet hole is provided on the bottom surface of the treatment tank 3, and the diameter of the liquid outlet hole is smaller than that of the polypropylene multi-faceted hollow sphere packing 5;

[0032] The middle part of the treatment tank 3 is filled with polypropylene multi-faceted hollow sphere packing 5 (PP ball filler) with a relatively large specific surface area;

[0033] The polypropylene multi-faceted hollow sphere packing 5 can increase the effective contact area between the waste gas and the liquid.

[0034] Both the first spray head 4 and the second spray head 6 are located above the flue gas inlet pipe 2. Since gas has the characteristic of floating upward, by setting the spray heads above, the sprayed liquid can be fully mixed with the flue gas, and the pollutants in the flue gas can be fully absorbed and purified.

[0035] As Figures 2-3 shown, the separation tank 8 includes a tank body 81; the tank body 81 includes a front side plate 813, a rear side plate 811, a left side plate 812, a right side plate 814, a top plate and a bottom plate; a filter screen 88 is provided between the top plate and the bottom plate; the middle part of the left side plate 812 is communicated with the mixed gas outlet pipe 9; an air outlet 85 is provided in the middle of the right side plate 814; the filter screen 88 is located below the mixed gas outlet pipe 9 and the air outlet 85.

[0036] As Figure 3 shown, the separation tank 8 further includes a first water collecting plate 82, a second water collecting plate 83 and a third water collecting plate 84 sequentially arranged between the left side plate 812 and the right side plate 814; the first water collecting plate 82, the second water collecting plate 83 and the third water collecting plate 84 are all located above the filter screen 88; there is a gap between the first water collecting plate 82 and the top plate; one end of the second water collecting plate 83 is hermetically fixed to the top plate; there is a gap between the other end of the second water collecting plate 83 and the filter screen 88; there is a gap between the third water collecting plate 84 and the top plate; the first water collecting plate 82, the second water collecting plate 83 and the third water collecting plate 84 are all vertically fixed to the front side plate 813 and the rear side plate 811; the first water collecting plate 82, the second water collecting plate 83 and the third water collecting plate 84 are all parallel to the left side plate 812 and the right side plate 814.

[0037] The system is also equipped with an automatic dosing system. The dosing system automatically controls the dosing amounts of acid and alkali according to the pH value feedback by the process tracking detection system, ensuring the stable operation of the system and effectively reducing the drug consumption. At the same time, the dosing system is provided with a liquid level control and an idling protection device for the dosing pump; this system is also equipped with an electric control system, which is electrically connected to the dosing system, the water pump 7 for incoming liquid and the separation tank 8.

[0038] The working process of the present utility model

[0039] The waste gas (flue gas) collected by the fan in the silk reeling workshop enters the interior of the treatment tank 3 through the flue gas inlet pipe 2. The first spray head 4 and the second spray head 6 are turned on to spray the flue gas. The harmful gases in the flue gas are adsorbed by the filler and dissolved in water, and then enter the separation tank 8 for gas-liquid separation. The separated clean gas is discharged, and the harmful liquid flows into the water tank 1.

[0040] During operation, the waste gas first passes through the polypropylene multi-faceted hollow sphere filler 5. While the purification liquid is sprayed downward (second spray head 6), horizontal spraying (first spray head 4) is also carried out. The waste gas passes through the treatment tank 3 in the horizontal direction. The spraying mode of the purification liquid is in a co-current and cross-flow manner with the waste gas. When the waste gas flows through the polypropylene multi-faceted hollow sphere filler 5, it fully contacts the liquid sprayed on the polypropylene multi-faceted hollow sphere filler 5. The particulate matter entrained in the waste gas flows into the water tank 1 through the liquid outlet holes at the bottom surface of the treatment tank 3 along with the purification liquid. At the same time, the odor molecules and organic substances that can be dissolved in the liquid are also removed. After passing through the polypropylene multi-faceted hollow sphere filler 2, the content of particulate matter and odor molecules in the waste gas is greatly reduced;

[0041] Since a large amount of water droplets are entrained in the waste gas passing through the polypropylene multi-faceted hollow sphere filler 5, if not treated, the direct entry of the waste gas into the pipeline or other equipment is likely to cause corrosion and damage to the pipeline or equipment. A gas-liquid separation tank 8 is provided at the rear side of the polypropylene multi-faceted hollow sphere filler 5 in the purification cavity, and the waste gas still needs to be treated by the gas-liquid separation tank 8. When the waste gas flows through the gas-liquid separation tank 8, the liquid droplets entrained in the gas flow settle in the partition bending channel under the action of inertia force, and the formed liquid film flows down along the plate surface to the water tank 1 by gravity, and then the waste gas is discharged up to the standard.

[0042] Embodiment 2

[0043] The structure of this embodiment is basically the same as that of Embodiment 1

[0044] The difference between this embodiment and Embodiment 1 lies in that

[0045] As Figure 2 shown

[0046] The separation box 8 further includes a first water collecting plate 82, a second water collecting plate 83, and a third water collecting plate 84 that are sequentially arranged between the left side plate 812 and the right side plate 814; the first water collecting plate 82, the second water collecting plate 83, and the third water collecting plate 84 are all located above the filter screen 88; there is a gap between the first water collecting plate 82 and the top plate; one end of the second water collecting plate 83 is hermetically fixed to the top plate; there is a gap between the other end of the second water collecting plate 83 and the filter screen 88; there is a gap between the third water collecting plate 84 and the top plate; the first water collecting plate 82, the second water collecting plate 83, and the third water collecting plate 84 are all perpendicularly fixed to the front side plate 813 and the rear side plate 811; the first water collecting plate 82, the second water collecting plate 83, and the third water collecting plate 84 are all parallel to the left side plate 812 and the right side plate 814. Through the arrangement of the positions of the three water collecting plates in the box body 81, the mixture of flue gas and water can fully accumulate water droplets on the water collecting plates, leave the water, and discharge the clean gas, avoiding water loss.

[0047] A liquid level sensor 86, a liquid outlet valve 87, and a controller are provided on the separation box 8; the liquid level sensor 86 is located below the filter screen 88, and the liquid level sensor 86 is located above the liquid outlet valve 87; the controller is respectively in signal connection with the liquid level sensor 86 and the liquid outlet valve 87.

[0048] As Figure 4 shown, the first water collecting plate 82, the second water collecting plate 83, and the third water collecting plate 84 are all corrugated plates made of stainless steel material.

[0049] Being set as corrugated plates increases the water collection area, improving the water collection effect and efficiency.

[0050] When the water level in the box body 81 is detected by the liquid level sensor 86, the controller receives the signal from the liquid level sensor 86, and the controller gives an opening signal to the liquid valve 87 to discharge the water, avoiding the separated water being carried away by the gas.

[0051] Embodiment 3

[0052] This embodiment has basically the same structure as Embodiment 1,

[0053] The difference between this embodiment and Embodiment 1 is that,

[0054] As Figure 5 shown, hydrophilic rubber layers 821 are provided on both sides of the first water collecting plate 82, the second water collecting plate 83, and the third water collecting plate 84.

[0055] Through the hydrophilic rubber layers 821, the moisture can be retained through the rubber layers of the water collecting plates, accelerating the accumulation of moisture.

[0056] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its improved concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

[0057] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

Claims

1. A tobacco waste gas cross-flow purification treatment system, characterized in that: The invention comprises a water pool (1), a treatment box (3) for treating pollutants in flue gas, and a separation box (8) for gas-liquid separation, wherein a flue gas inlet pipe (2) is provided on one side of the treatment box (3), and a mixed gas outlet pipe (9) is provided on the other side of the treatment box (3), wherein the mixed gas outlet pipe (9) is connected to the separation box (8); a liquid inlet device is provided on the treatment box (3); the liquid inlet device connects the medicine in the water pool (1) with the treatment box (3); and a filler for absorbing pollutants in flue gas is provided in the treatment box (3).

2. A tobacco waste gas cross-flow purification treatment system according to claim 1, characterized in that: The liquid inlet device comprises a water pump (7), a first nozzle (4) and a second nozzle (6) connected to the water pump (7); the first nozzle (4) is installed on a side of the treatment box (3) where a smoke inlet pipe (2) is provided; and the second nozzle (6) is installed on the top of the treatment box (3).

3. A tobacco waste gas cross-flow purification treatment system according to claim 2, characterized in that: The filler is a polypropylene multi-faceted hollow sphere filler (5).

4. A tobacco waste gas cross-flow purification treatment system according to claim 3, characterized in that: The first nozzle (4) and the second nozzle (6) are both located above the smoke inlet pipe (2).

5. A tobacco waste gas cross-flow purification treatment system according to claim 4, characterized in that: The separation box (8) comprises a box body (81); the box body (81) comprises a front side plate (813), a rear side plate (811), a left side plate (812), a right side plate (814), a top plate and a bottom plate; a filter screen (88) is provided between the top plate and the bottom plate; the middle portion of the left side plate (812) is connected to the mixed gas outlet pipe (9); the middle portion of the right side plate (814) is provided with an outlet port (85); the filter screen (88) is located below the mixed gas outlet pipe (9) and the outlet port (85).

6. A tobacco waste gas cross-flow purification system according to claim 5, characterized in that: The separation box (8) further comprises a first water collecting plate (82), a second water collecting plate (83) and a third water collecting plate (84) which are arranged in sequence between the left side plate (812) and the right side plate (814); the first water collecting plate (82), the second water collecting plate (83) and the third water collecting plate (84) are all located above the filter screen (88); a gap is left between the first water collecting plate (82) and the top plate; one end of the second water collecting plate (83) is sealed and fixed to the top plate; the second A gap is left between the other end of the water collecting plate (83) and the filter screen (88); a gap is left between the third water collecting plate (84) and the top plate; the first water collecting plate (82), the second water collecting plate (83) and the third water collecting plate (84) are all vertically fixed to the front side plate (813) and the rear side plate (811); the first water collecting plate (82), the second water collecting plate (83) and the third water collecting plate (84) are all parallel to the left side plate (812) and the right side plate (814).

7. A tobacco waste gas cross-flow purification treatment system according to claim 5, characterized in that: The separation box (8) is provided with a liquid level sensor (86), a liquid outlet valve (87) and a controller; the liquid level sensor (86) is located below the filter screen (88), and the liquid level sensor (86) is located above the liquid outlet valve (87); and the controller is respectively connected to the liquid level sensor (86) and the liquid outlet valve (87) via signals.

8. A tobacco waste gas cross-flow purification system according to claim 6, characterized in that: The first water collecting plate (82), the second water collecting plate (83) and the third water collecting plate (84) are all stainless steel corrugated plates.

9. A tobacco waste gas cross-flow purification treatment system according to claim 6, characterized in that: The first water collection plate (82), the second water collection plate (83) and the third water collection plate (84) are all provided with a hydrophilic rubber layer (821) on both sides.

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