Glyoxylic acid tail gas washing tower

Abstract

The utility model relates to the technical field of glyoxylic acid tail gas treatment, and discloses a glyoxylic acid tail gas washing tower which comprises a support frame, and further comprises a tail gas washing tank fixed on the inner wall of the support frame and used for primarily washing tail gas, the tail gas washing tank is communicated with a first gas guide pipe transversely arranged on the outer side of the tail gas washing tank, and one end of the first gas guide pipe is communicated with a preheater used for preheating the tail gas, so that the tail gas can be conveniently washed for the first time by arranging the tail gas washing tank, the tail gas can be conveniently preheated by arranging the preheater, and the tail gas can be conveniently heated by arranging the heating mechanism. According to the device, tail gas can be heated, VOC in the tail gas can be conveniently purified through the water washing tower, meanwhile, the VOC in the tail gas can be basically removed through matched use of the tail gas head washing tank, the first gas guide pipe, the preheater and the first connecting pipe, and the situation that the tail gas cannot be discharged due to the fact that purification of the device on the tail gas cannot meet the local environmental protection requirement is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of glyoxylic acid tail gas treatment, in particular to a glyoxylic acid tail gas water washing tower. Background Art

[0002] Glyoxylic acid tail gas refers to the gas containing glyoxylic acid and its derivatives produced in the process of producing glyoxylic acid. In the process of producing glyoxylic acid, steps such as fermentation, concentration, and drying will produce a large amount of glyoxylic acid tail gas. These tail gases contain glyoxylic acid and its vapor, volatile acids and other substances. If they are directly discharged into the atmosphere, they will pollute the environment and may be harmful to human health.

[0003] A large amount of tail gas will be generated in the industrial production process of glyoxylic acid, the main component of which is glyoxylic acid. In order to prevent these tail gases from being discharged into the atmosphere and polluting the environment, a glyoxylic acid tail gas water scrubber is needed to treat these tail gases. The existing glyoxylic acid tail gas water scrubber usually uses traditional technology to filter VOC in the tail gas. The traditional technology generally allows the glyoxylic acid tail gas generated in the workshop to pass through a tail gas washing tank, a tail gas destruction tank, and a tail gas buffer tank before entering the subsequent production system. After the production system, the exhaust gas discharged to the outside contains excessive VOC, resulting in the equipment being unable to meet local environmental protection requirements for tail gas purification, thereby resulting in the inability to discharge the waste gas. Utility Model Content

[0004] The utility model aims to provide a glyoxylic acid tail gas water washing tower to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a glyoxylic acid tail gas water washing tower, including a support frame, and also including:

[0006] An exhaust gas washing tank fixed to the inner wall of the support frame for performing initial washing of the exhaust gas;

[0007] A first air duct is connected to the outside of the exhaust gas scrubber and is laterally arranged. One end of the first air duct is connected to a preheater for preheating the exhaust gas. One side of the preheater is connected to a first connecting pipe. A heating mechanism is arranged at one end of the first connecting pipe.

[0008] Preferably, the heating mechanism includes a combustion box connected to one end of the first connecting pipe, a partition for dispersing heat is fixed to the inner wall of the combustion box, and a burner for heating the exhaust gas is arranged on the inner wall of the combustion box.

[0009] Preferably, the outside of the exhaust gas scrubbing tank is connected to a transversely arranged air intake pipe, and a valve is arranged on the outside of the air intake pipe.

[0010] Preferably, the outside of the exhaust gas scrubbing tank is connected to a second air duct, one side of the combustion box is connected to a second connecting pipe, and one end of the second connecting pipe is connected to a water washing tower body for spraying and cooling the exhaust gas.

[0011] Preferably, a filter screen for filtering tail gas is fixed on the inner wall of the water washing tower body, and a water storage tank for storing water for spraying is arranged on the inner wall of the water washing tower body.

[0012] Preferably, the outside of the water washing tower body is connected to a transversely arranged first water pipe, one end of the first water pipe is connected to a water pump, and the water outlet end of the water pump is connected to a second water pipe.

[0013] Preferably, one end of the second water conduit is connected to a water delivery pipe, and the outside of the water delivery pipe is connected to a plurality of sprinkler heads.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can facilitate initial washing of the exhaust gas by arranging an exhaust gas washing tank, can facilitate preheating of the exhaust gas by arranging a preheater, can heat the exhaust gas by arranging a heating mechanism, and can facilitate purification of VOC in the exhaust gas by arranging a water washing tower. At the same time, the VOC in the exhaust gas can be basically removed by cooperating with the exhaust gas washing tank, the first air guide pipe, the preheater and the first connecting pipe, thereby preventing the exhaust gas purification of the equipment from failing to meet the local environmental protection requirements, thereby causing the exhaust gas to be unable to be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a preferred embodiment of a glyoxylic acid tail gas water washing tower provided by the utility model;

[0017] Figure 2 A schematic diagram of the combustion box structure provided by the utility model;

[0018] Figure 3 A schematic diagram of the heating mechanism structure provided by the utility model;

[0019] Figure 4 This is a schematic diagram of the water washing tower structure provided by the utility model.

[0020] In the figure: 1. support frame; 2. exhaust gas washing tank; 3. first air duct; 4. preheater; 5. first connecting pipe; 6. heating mechanism; 61. combustion box; 62. partition; 63. burner; 7. air inlet pipe; 8. valve; 9. second air duct; 10. second connecting pipe; 11. water washing tower body; 12. filter screen; 13. water storage tank; 14. first water duct; 15. water pump; 16. second water duct; 17. water pipe; 18. sprinkler head. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 As shown, a glyoxylic acid tail gas water washing tower comprises a support frame 1. By setting the support frame 1, it is convenient to support the tail gas washing tank 2. The inner wall of the support frame 1 is fixed with a tail gas washing tank 2 for primary washing of the tail gas. By setting the tail gas washing tank 2, it is convenient to perform primary washing of VOC in the tail gas; a first air guide pipe 3 is connected to the outer side of the tail gas washing tank 2 and is arranged horizontally. By setting the first air guide pipe 3, it is convenient to introduce the tail gas in the tail gas washing tank 2 into the preheater 4 for preheating. One end of the first air guide pipe 3 is connected with the preheater 4 for preheating the tail gas. By setting the preheater 4, it is convenient to preheat the tail gas. One side of the preheater 4 is connected with a first connecting pipe 5. By setting the first connecting pipe 5, it is convenient to connect the preheater 4 with the combustion box 61, and at the same time, it is convenient to introduce the tail gas in the preheater 4 into the combustion box 61. A heating mechanism 6 is arranged at one end of the first connecting pipe 5. By arranging the heating mechanism 6, it is convenient to heat the tail gas.

[0023] refer to Figure 3 As shown, the heating mechanism 6 includes a combustion box 61 connected to one end of the first connecting pipe 5. By setting up the combustion box 61, it is convenient to store the exhaust gas and burn the exhaust gas. The inner wall of the combustion box 61 is fixed with a partition 62 for dispersing heat. By setting up the partition 62, the exhaust gas and the burner 63 can be separated, and the exhaust gas can be burned evenly. The inner wall of the combustion box 61 is provided with a burner 63 for heating the exhaust gas. By setting up the burner 63, the exhaust gas can be burned.

[0024] refer to Figure 2As shown, the outside of the exhaust gas washing tank 2 is connected to a transversely arranged air intake pipe 7. By setting the air intake pipe 7, the exhaust gas to be purified can be easily introduced into the exhaust gas washing tank 2. A valve 8 is arranged on the outside of the air intake pipe 7. By setting the valve 8, the switch of the air intake pipe 7 can be easily controlled; the outside of the exhaust gas washing tank 2 is connected to a second air guide pipe 9. By setting the second air guide pipe 9, the exhaust gas with a VOC content that meets the standard can be directly introduced into the water washing tower body 11 for purification. One side of the combustion box 61 is connected to a second connecting pipe 10. By setting the second connecting pipe 10, the combustion box 61 can be connected to the water washing tower body 11, and the exhaust gas in the combustion box 61 can be introduced into the water washing tower body 11. One end of the second connecting pipe 10 is connected to the water washing tower body 11 for spraying and cooling the exhaust gas. By setting the water washing tower body 11, the exhaust gas can be stored and purified at the same time.

[0025] refer to Figure 4 As shown, a filter screen 12 for filtering tail gas is fixed on the inner wall of the water washing tower body 11. By setting the filter screen 12, it is convenient to filter the spray water. A water storage tank 13 for storing the spray water is arranged on the inner wall of the water washing tower body 11. By setting the water storage tank 13, it is convenient to store the spray water. The outer side of the water washing tower body 11 is connected to a first water pipe 14 arranged horizontally. By setting the first water pipe 14, it is convenient to guide the water in the water storage tank 13 into the water pump 15. One end of the first water pipe 14 is connected to the water pump 15. By setting the water pump 15, it is convenient to introduce the spray water into the water pipe 17 through the second water pipe 16, and spray the exhaust gas through the spray head 18. The water outlet end of the water pump 15 is connected with the second water pipe 16. By setting the second water pipe 16, it is convenient to introduce the spray water into the water pipe 17; one end of the second water pipe 16 is connected with the water pipe 17. By setting the water pipe 17, it is convenient to spray the exhaust gas with the spray water through the spray head 18 for cooling. The outside of the water pipe 17 is connected with a plurality of spray heads 18. By setting the spray heads 18, it is convenient to spray and cool the exhaust gas.

[0026] Working principle: When in use, the exhaust gas to be purified is first introduced into the exhaust gas washing tank 2 through the air inlet pipe 7. The VOC concentration of the exhaust gas is measured after passing through the exhaust gas washing tank 2. When the VOC concentration reaches the environmental protection requirement, the exhaust gas can be introduced into the water washing tower body 11 through the second air pipe 9 for washing. After washing, it directly enters the subsequent production system. When the VOC concentration is higher than the environmental protection requirement, the exhaust gas is introduced into the preheater 4 through the first air pipe 3. After the exhaust gas is preheated, the exhaust gas is introduced into the combustion box 61 through the first connecting pipe 5. The exhaust gas is heated by the burner 63. After the exhaust gas is burned, it enters the water washing tower body 11 through the second connecting pipe 10, and then the water pump 15 is started. The water pump 15 introduces the water in the water tank 13 into the second water pipe 16 through the first water pipe 14. The second water pipe 16 introduces the water into the water pipe 17. The water pipe 17 sprays the exhaust gas with water through the spray head 18 to cool it down.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A glyoxylic acid tail gas water scrubber, comprising a support frame (1), characterized in that: Also includes: An exhaust gas washing tank (2) fixed to the inner wall of the support frame (1) and used for initially washing the exhaust gas; A first air guide pipe (3) is connected to the outside of the exhaust gas scrubber (2) and is arranged transversely, one end of the first air guide pipe (3) is connected to a preheater (4) for preheating the exhaust gas, one side of the preheater (4) is connected to a first connecting pipe (5), and one end of the first connecting pipe (5) is provided with a heating mechanism (6).

2. A glyoxylic acid tail gas water scrubber according to claim 1, characterized in that: The heating mechanism (6) comprises a combustion box (61) connected to one end of the first connecting pipe (5), a partition (62) for dispersing heat is fixed to the inner wall of the combustion box (61), and a burner (63) for heating exhaust gas is arranged on the inner wall of the combustion box (61).

3. A glyoxylic acid tail gas water scrubber according to claim 1, characterized in that: The outside of the tail gas scrubbing tank (2) is connected to a transversely arranged air intake pipe (7), and a valve (8) is arranged on the outside of the air intake pipe (7).

4. A glyoxylic acid tail gas water scrubber according to claim 2, characterized in that: The outside of the tail gas scrubbing tank (2) is connected to a second air guide pipe (9), one side of the combustion box (61) is connected to a second connecting pipe (10), and one end of the second connecting pipe (10) is connected to a water scrubbing tower body (11) for spraying and cooling the tail gas.

5. A glyoxylic acid tail gas water scrubber according to claim 4, characterized in that: A filter screen (12) for filtering tail gas is fixed on the inner wall of the water scrubber body (11), and a water storage tank (13) for storing water for spraying is arranged on the inner wall of the water scrubber body (11).

6. A glyoxylic acid tail gas water scrubber according to claim 5, characterized in that: The outside of the water washing tower body (11) is connected to a first water pipe (14) arranged transversely, one end of the first water pipe (14) is connected to a water pump (15), and the water outlet end of the water pump (15) is connected to a second water pipe (16).

7. A glyoxylic acid tail gas water scrubber according to claim 6, characterized in that: One end of the second water conduit (16) is connected to a water delivery pipe (17), and the outside of the water delivery pipe (17) is connected to a plurality of sprinkler heads (18).

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