Ethylene glycol waste gas treatment device

Abstract

The utility model discloses an ethylene glycol waste gas treatment device which comprises a box body, a conveying mechanism arranged in the box body, a first absorption mechanism arranged in the box body, a dispersion pipe and a second absorption mechanism arranged in the box body, the box body is provided with at least one discharge hole, and the conveying mechanism is used for conveying ethylene glycol waste gas. The first absorption mechanism is used for absorbing part of ethylene glycol waste gas, the dispersion pipe is communicated with the conveying mechanism and inserted into the first absorption box, and the second absorption mechanism is used for absorbing the other part of ethylene glycol waste gas. The device disclosed by the utility model can save energy and reduce pollution, and has a good waste gas treatment effect.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment devices, and in particular to an ethylene glycol waste gas treatment device. Background Technology

[0002] Ethylene glycol, also known as glycol, is the simplest aliphatic diol. It possesses the chemical properties of alcohols and is a colorless, transparent, viscous liquid. It is a raw material for the production of polyester resins, alkyd resins, and polyester fibers, and is also used as an antifreeze in automobiles and a refrigerant in aircraft engines. Ethylene glycol is miscible with water in any proportion within a temperature range of -30°C to 150°C.

[0003] In the chemical industry, particularly in polyester production, polymerization equipment needs to periodically or irregularly emit ethylene glycol waste gas. Current technologies typically treat this waste gas using activated carbon adsorption, incineration, or condensation. Activated carbon adsorption requires frequent replacement of saturated activated carbon, incineration releases carbon dioxide and exacerbates the greenhouse effect, and condensation consumes energy to convert gaseous ethylene glycol into liquid for collection. Therefore, a new technological solution is urgently needed to address at least one of these technical problems. Summary of the Invention

[0004] In view of the above shortcomings, the purpose of this utility model is to provide an ethylene glycol waste gas treatment device that can save energy, reduce pollution, and achieve good waste gas treatment effect.

[0005] To achieve the above-mentioned technical objectives and meet the above-mentioned technical requirements, the technical solution adopted by this utility model is as follows:

[0006] An ethylene glycol waste gas treatment device, characterized in that it comprises:

[0007] The housing has at least one discharge port;

[0008] The conveying mechanism installed in the box is used to convey ethylene glycol waste gas;

[0009] The first absorption mechanism, located inside the box, is used to absorb part of the ethylene glycol waste gas.

[0010] A dispersion tube, which is connected to the conveying mechanism, is inserted into the first absorption box;

[0011] The second absorption mechanism, located inside the housing, is used to absorb another portion of the ethylene glycol waste gas.

[0012] As a preferred technical solution, the first absorption mechanism includes a first absorption box storing a first absorption medium, a plurality of partitions alternately arranged inside the first absorption box, a plurality of dispersion holes penetrating through the tail end of the dispersion tube, the tail end of the dispersion tube being located at the bottom of the first absorption box, the first absorption box being connected to the box body, and the first absorption box communicating with the interior of the box body.

[0013] As a preferred technical solution, the second absorption mechanism includes a second absorption box storing a second absorption medium, a filter support layer is provided at the bottom of the second absorption box, and the second absorption box is connected to the discharge hole.

[0014] As a preferred technical solution, the conveying mechanism includes an air inlet pipe disposed on one side of the box and a driving device disposed at one end of the air inlet pipe, wherein the driving device is connected to the air inlet pipe and the dispersing pipe respectively.

[0015] As a preferred technical solution, the driving device and the dispersion tube are sequentially connected by a gas supply pipe and a buffer tank.

[0016] As a preferred technical solution, a cleaning mechanism is provided on the outer periphery of the gas transmission pipe. The cleaning mechanism includes a cleaning pipe disposed on the outer periphery of the gas transmission pipe and a switch valve disposed on the cleaning pipe. The cleaning pipe is connected to the gas transmission pipe, and one end of the cleaning pipe extends out of the outer side of the housing.

[0017] As a preferred technical solution, a filter screen is connected inside the air intake pipe.

[0018] As a preferred technical solution, a roller is provided at each of the four corners of the bottom of the box.

[0019] As a preferred technical solution, the first absorption medium is water, and the second absorption medium is activated carbon.

[0020] As a preferred technical solution, the material of the filter support layer is non-woven fabric.

[0021] Compared with traditional technical solutions, the beneficial effects of this utility model are:

[0022] 1) The conveying mechanism transports the ethylene glycol waste gas to the dispersion pipe. The ethylene glycol waste gas enters the first absorption mechanism from the dispersion pipe to complete the first absorption. After the first absorption, the ethylene glycol waste gas enters the second absorption mechanism for the second absorption. In this way, the ethylene glycol waste gas can pass through at least two absorptions, which can absorb the ethylene glycol waste gas as much as possible. The waste gas treatment effect is good, pollution is reduced, and energy consumption is low, saving energy.

[0023] 2) Ethylene glycol waste gas can be dispersed into multiple small bubbles through the dispersion holes, increasing the contact area between the ethylene glycol waste gas and the first absorption medium to facilitate the absorption of ethylene glycol waste gas. Multiple baffles can guide the flow of ethylene glycol waste gas so that the first absorption medium can absorb ethylene glycol waste gas to the maximum extent.

[0024] 3) After the first absorption, the incompletely absorbed ethylene glycol waste gas enters the second absorption box from the filter support layer. The second absorption medium further absorbs the ethylene glycol waste gas, thereby reducing pollution.

[0025] 4) The cleaning tube can be filled with cleaning fluid to clean impurities in the dispersion tube and prevent blockage;

[0026] 5) The buffer tank buffers the ethylene glycol waste gas to prevent excessive pressure from the ethylene glycol waste gas entering the dispersion pipe;

[0027] 6) The filter screen can remove large particulate impurities from ethylene glycol waste gas. Attached Figure Description

[0028] Figure 1 This is a structural diagram of a device provided in one embodiment of the present invention.

[0029] exist Figure 1 In the middle, 1. Box body; 2. Conveying mechanism; 21. Air inlet pipe; 22. Drive device; 23. Air delivery pipe; 3. Cleaning mechanism; 31. Cleaning pipe; 32. Switch valve; 4. Check valve; 5. Buffer tank; 6. Dispersion pipe; 7. First absorption mechanism; 71. First absorption box; 72. Baffle plate; 73. Inlet and outlet pipes; 8. Second absorption mechanism; 81. Second absorption box; 82. Filter support layer; 9. Discharge hole; 10. Dispersion hole; 11. Roller; 12. Filter screen. Detailed Implementation

[0030] The present invention will now be further described with reference to the accompanying drawings.

[0031] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "top," "bottom," "left," "right," "front," "rear," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] Please refer to Figure 1This utility model provides an ethylene glycol waste gas treatment device, including a housing 1, a conveying mechanism 2 disposed in the housing 1, a first absorption mechanism 7 disposed inside the housing 1, a dispersion pipe 6, and a second absorption mechanism 8 disposed inside the housing 1. The housing 1 is provided with at least one discharge hole 9. The conveying mechanism 2 is used to convey ethylene glycol waste gas. The first absorption mechanism 7 is used to absorb part of the ethylene glycol waste gas. The dispersion pipe 6 is connected to the conveying mechanism 2 and is inserted into the first absorption housing 71. The second absorption mechanism 8 is used to absorb the remaining part of the ethylene glycol waste gas. The conveying mechanism 2 conveys the ethylene glycol waste gas to the dispersion pipe 6. The ethylene glycol waste gas enters the first absorption mechanism 7 from the dispersion pipe 6 to complete the first absorption. After the first absorption, the ethylene glycol waste gas enters the second absorption mechanism 8 for the second absorption. In this way, the ethylene glycol waste gas can undergo at least two absorptions, which can absorb ethylene glycol waste gas as much as possible, resulting in good waste gas treatment effect, reduced pollution, low energy consumption, and energy saving.

[0033] Specifically, such as Figure 1 As shown, multiple discharge holes 9 are provided through the upper side of the box 1. The discharge holes 9 are arranged linearly and evenly, resulting in uniform discharge and good discharge effect.

[0034] Specifically, such as Figure 1 As shown, the first absorption mechanism 7 includes a first absorption box 71 storing a first absorption medium, and multiple partitions 72 alternately arranged inside the body 1 of the first absorption box 71. A dispersion tube 6 has multiple dispersion holes 10 extending through its tail end. The tail end of the dispersion tube 6 is located at the bottom of the body 1 of the first absorption box 71. The first absorption box 71 is located at the bottom inside the box 1 and is connected to the box 1. The first absorption box 71 communicates with the inside of the box 1. Ethylene glycol waste gas can be dispersed into multiple small bubbles through the dispersion holes 10, increasing the contact area between the ethylene glycol waste gas and the first absorption medium to facilitate the absorption of ethylene glycol waste gas. The multiple partitions 72 can guide the flow of ethylene glycol waste gas so that the first absorption medium can absorb ethylene glycol waste gas to the maximum extent. In order to communicate between the first absorption box 71 and the inside of the box 1, the upper part of the first absorption box 71 is open or connected to a perforated plate so that the ethylene glycol waste gas that is not completely absorbed can escape.

[0035] Furthermore, such as Figure 1As shown, the number of partitions 72 is 2, 3, 4, or 5. Taking 4 partitions 72 as an example, the 4 partitions 72 are arranged in parallel intervals from top to bottom. The left end of the first partition is fixedly connected to the inner wall of the left side of the first absorption box 71, and a gap is left between its right end and the inner wall of the right side of the first absorption box 71. The right end of the second partition is fixedly connected to the inner wall of the right side of the first absorption box, and a gap is left between its left end and the inner wall of the left side of the first absorption box 71. The left end of the third partition is fixedly connected to the inner wall of the left side of the third absorption box, and a gap is left between its right end and the inner wall of the right side of the first absorption box 71. The right end of the fourth partition is fixedly connected to the inner wall of the right side of the first absorption box 71, and a gap is left between its left end and the inner wall of the left side of the first absorption box 71. The dispersion tube 6 is bent and passes through the second and fourth partitions 72. This allows the ethylene glycol waste gas to follow an "S" shaped path in the first absorption box 71, so that the ethylene glycol waste gas is absorbed to the maximum extent.

[0036] Specifically, the primary absorption medium is water. Since ethylene glycol is miscible with water in any proportion, ethylene glycol dissolves well in water, resulting in good absorption.

[0037] Furthermore, such as Figure 1 As shown, an inlet / outlet pipe 73 is inserted into the housing 1. One end of the inlet / outlet pipe 73 is inserted into the first absorption tank 71 and communicates with the inside of the first absorption tank 71. This allows water to be introduced into or discharged from the first absorption tank 71. A matching valve is installed on the inlet / outlet pipe 73 to control the water inlet and outlet.

[0038] like Figure 1 As shown, the second absorption mechanism 8 includes a second absorption box 81 storing a second absorption medium. A filter support layer 82 is provided at the bottom of the second absorption box 81. The second absorption box 81 is located at the top inside the box body 1. The second absorption box 81 is connected to the discharge hole 9. The ethylene glycol waste gas that is not completely absorbed passes through the filter support layer 82 and enters the second absorption box 81. The ethylene glycol waste gas that is not completely absorbed is absorbed by the second absorption medium, reducing environmental pollution. In order to make the second absorption box 81 connected to the discharge hole 9, the upper side of the second absorption box 81 is opened or a perforated plate is provided to facilitate gas discharge.

[0039] like Figure 1 As shown, the conveying mechanism 2 includes an air inlet pipe 21 disposed on one side of the housing 1 and a drive device 22 disposed at one end of the air inlet pipe 21. The drive device 22 is connected to the air inlet pipe 21 and the dispersion pipe 6 respectively. Specifically, the drive device 22 is an air pump, which conveys ethylene glycol waste gas.

[0040] like Figure 1 As shown, the drive device 22 and the dispersion pipe 6 are sequentially connected by a gas supply pipe 23 and a buffer tank 5. The drive device 22 is an air pump, which delivers ethylene glycol waste gas into the buffer tank 5. The buffer tank 5 buffers the ethylene glycol waste gas to prevent the pressure of the ethylene glycol waste gas entering the dispersion pipe 6 from being too high.

[0041] Furthermore, such as Figure 1 As shown, the gas pipeline 23 is equipped with a one-way valve 4 to prevent the backflow of ethylene glycol waste gas.

[0042] like Figure 1 As shown, a cleaning mechanism 3 is provided on the outer periphery of the gas supply pipe 23. The cleaning mechanism 3 includes a cleaning pipe 31 provided on the outer periphery of the gas supply pipe 23 and a switch valve 32 provided on the cleaning pipe 31. The cleaning pipe 31 is connected to the gas supply pipe 23. One end of the cleaning pipe 31 extends out of the outer side of the housing 1. The switch valve 32 controls the flow of the cleaning liquid. The cleaning pipe 31 can be filled with cleaning liquid to clean impurities in the dispersion tube 6 and prevent blockage.

[0043] like Figure 1 As shown, a filter screen 12 is connected inside the air intake pipe 21. The filter screen 12 can filter out large particulate impurities in the ethylene glycol waste gas.

[0044] like Figure 1 As shown, each of the four corners of the bottom of the box 1 is equipped with a roller 11, which facilitates handling by staff and improves production efficiency.

[0045] like Figure 1 As shown, the first absorption medium is water, and the second absorption medium is activated carbon. After the ethylene glycol waste gas is absorbed by water, it is then absorbed by activated carbon, so there is no need to frequently replace the activated carbon.

[0046] like Figure 1 As shown, the filter support layer 82 is made of non-woven fabric. Non-woven fabric has good air permeability and provides good support for activated carbon. The edge of the non-woven fabric is connected to the second absorption box 81.

[0047] Any numerical values ​​cited herein include all values ​​ranging from a lower limit to an upper limit, increasing by one unit, with at least two units between any lower and any higher value. For example, if the quantity of a component or the value of a process variable (e.g., temperature, pressure, time, etc.) is described as being from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in this specification. For values ​​less than 1, a unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1, etc. These are merely examples intended for explicit expression, and it can be assumed that all possible combinations of values ​​listed between the minimum and maximum values ​​are explicitly described in this specification in a similar manner.

[0048] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.

[0049] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute included by “may” is optional.

[0050] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.

[0051] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the inventors have not considered that subject matter as part of the disclosed utility model subject matter.

Claims

1. An ethylene glycol exhaust gas treatment device, characterized by comprising: The application relates to a device for absorbing ethylene glycol waste gas, which comprises the following parts: a box provided with at least one discharge hole; a conveying mechanism arranged in the box and used for conveying ethylene glycol waste gas; a first absorbing mechanism arranged in the box and used for absorbing part of the ethylene glycol waste gas; a dispersing pipe in communication with the conveying mechanism, which is inserted into the first absorbing mechanism; a second absorbing mechanism arranged in the box and used for absorbing another part of the ethylene glycol waste gas.

2. The ethylene glycol exhaust treatment device of claim 1, wherein, The first absorbing mechanism comprises a first absorbing box storing a first absorbing medium, a plurality of partitions alternately arranged in the first absorbing box, a plurality of dispersing holes arranged at the tail end of the dispersing pipe, and the tail end of the dispersing pipe is located at the bottom of the first absorbing box; the first absorbing box is connected with the box and is in communication with the inside of the box.

3. The ethylene glycol exhaust treatment device of claim 2, wherein, The second absorbing mechanism comprises a second absorbing box storing a second absorbing medium, and a filter support layer arranged at the bottom of the second absorbing box; the second absorbing box is in communication with the discharge hole.

4. The ethylene glycol exhaust treatment device of claim 1, wherein, The conveying mechanism comprises an air inlet pipe arranged at one side of the box, and a driving device arranged at one end of the air inlet pipe; the driving device is in communication with the air inlet pipe and the dispersing pipe respectively.

5. The ethylene glycol exhaust treatment device of claim 4, wherein, A gas conveying pipe and a buffer tank are sequentially arranged between the driving device and the dispersing pipe.

6. The ethylene glycol exhaust treatment device of claim 5, wherein, A cleaning mechanism is arranged at the outer periphery of the gas conveying pipe; the cleaning mechanism comprises a cleaning pipe arranged at the outer periphery of the gas conveying pipe, and a switch valve arranged at the cleaning pipe; the cleaning pipe is in communication with the gas conveying pipe, and one end of the cleaning pipe extends out of the box.

7. The ethylene glycol exhaust treatment device of claim 4, wherein, A filter screen is connected to the inside of the air inlet pipe.

8. The ethylene glycol exhaust treatment device of claim 1, wherein, Four rollers are arranged at the four corners of the bottom of the box respectively.

9. The ethylene glycol exhaust treatment device of claim 3, wherein, The first absorbing medium is water, and the second absorbing medium is activated carbon.

10. The ethylene glycol exhaust treatment device of claim 3, wherein, The material of the filter support layer is non-woven fabric.

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