Hydrochloric acid tank sealing and acid mist absorbing composite device

Abstract

The utility model discloses a hydrochloric acid tank sealing and acid mist absorbing composite device which comprises a hydrochloric acid tank body and an acid mist absorbing tank body, the hydrochloric acid tank body is connected with an inlet of the acid mist absorbing tank body through a first inlet pipe, the acid mist absorbing tank body is provided with a clear water circulating back-spraying system, and the top of the hydrochloric acid tank body is provided with a population sealing cover. And an anti-corrosion sealing film is arranged between the population sealing cover and the hydrochloric acid tank body. According to the utility model, the acid mist in the tank is in a micro-positive pressure state through the way of preventing the acid mist from overflowing from the manhole door, so that the acid mist completely enters the acid mist absorber along a designed pipeline, metal components in the hydrochloric acid tank are prevented from being corroded, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of leachate treatment systems, and particularly relates to a hydrochloric acid tank sealing and acid mist absorption composite device. BACKGROUND

[0002] In the leachate treatment process, after years of development, the commonly used leachate treatment process is UASB (upflow anaerobic sludge bed) + MBR (membrane bioreactor) + RO (reverse osmosis, also known as inverse osmosis), which has been used for many years, and the process is relatively mature, the system is simple to adjust, and is currently widely used in leachate treatment systems of waste incineration power plants. Because the UASB and MBR systems mainly remove COD (chemical oxygen demand) and ammonia nitrogen in the leachate, and the RO system mainly removes inorganic salts in the leachate.

[0003] Because in the biochemical system, the commonly used process is denitrification preposition, denitrification preposition brings many benefits, one is that it can fully utilize the COD in the leachate original solution, effectively improve the removal rate of nitrogen and phosphorus. Nitration and denitrification are carried out at the same time, which improves the removal efficiency of nitrogen and phosphorus, and better meets the water quality discharge standard. However, due to denitrification preposition, the pH of the biochemical product water usually fluctuates between 7.5-8.5. In the alkaline environment, it is easy to scale in the concentration process of reverse osmosis, which easily blocks the water inlet flow channel of reverse osmosis, reduces the operation efficiency of the treatment system and affects the service life of the membrane system. In order to solve the problem of reverse osmosis scaling, hydrochloric acid is usually added to the MBR product water to adjust the pH of the MBR product water to 6.0-6.3, so as to prevent reverse osmosis from scaling. However, hydrochloric acid has strong volatility and is easy to corrode the metal structure between the hydrochloric acid, which causes the corrosion and damage of the metal components.

[0004] At present, in order to facilitate maintenance, a maintenance manhole is usually reserved at the top of the existing hydrochloric acid tank, and a set of acid mist absorber is constructed. However, because the hydrochloric acid tank is in a pressureless state, the manhole door is close to the acid mist absorber, and the sealing performance of the maintenance manhole is not strong, which causes the acid mist in the tank to not be able to enter the acid mist absorber according to the design pipeline, and part of the acid mist diffuses into the hydrochloric acid tank, which in turn corrodes the metal components in the hydrochloric acid tank. In severe cases, the metal components will be damaged due to corrosion, which greatly affects the service life of the equipment and the operation efficiency of the system. Therefore, the utility model provides a hydrochloric acid tank sealing and acid mist absorption composite device. Utility model content

[0005] The embodiment of the present application provides a hydrochloric acid tank sealing and acid mist absorption composite device, which can effectively prevent the corrosion of the metal components in the hydrochloric acid tank and greatly prolong the service life of the equipment.

[0006] Therefore, the present application provides a hydrochloric acid tank sealing and acid mist absorption composite device, which comprises: a hydrochloric acid tank body and an acid mist absorption tank body.

[0007] The hydrochloric acid tank body is connected with the inlet of the acid mist absorption tank body through a first inlet pipe;

[0008] A clean water circulation and back-spraying system is arranged on the acid mist absorption tank body;

[0009] A manhole sealing cover is arranged on the top of the hydrochloric acid tank body;

[0010] An anti-corrosion sealing film is arranged between the manhole sealing cover and the hydrochloric acid tank body.

[0011] Optionally, the manhole sealing cover is threadedly connected with the hydrochloric acid tank body;

[0012] The anti-corrosion sealing film is arranged at the thread on the hydrochloric acid tank body.

[0013] Optionally, a first inlet valve is arranged on the first inlet pipe.

[0014] Optionally, the clean water circulation and back-spraying system comprises a second inlet pipe, a clean water circulation pump, an outlet pipe and a spraying device;

[0015] The spraying device is arranged on the inner top of the acid mist absorption tank body;

[0016] One end of the second inlet pipe is connected with the outlet of the acid mist absorption tank body, and the other end is connected with the clean water circulation pump;

[0017] The clean water circulation pump is connected with the spraying device through the outlet pipe.

[0018] Optionally, the outlet pipe comprises a first pipe and a second pipe;

[0019] One end of the first pipe is connected with the outlet of the clean water circulation pump, and the other end is connected with one end of the second pipe;

[0020] The other end of the second pipe is connected with the spraying device;

[0021] The diameter of the first pipe is greater than the diameter of the second pipe.

[0022] Optionally, a second inlet valve is arranged on the second pipe.

[0023] Optionally, a third inlet valve is arranged at the inlet of the clean water circulation pump;

[0024] An outlet valve is arranged at the outlet of the clean water circulation pump.

[0025] Optionally, a drain is arranged at the bottom of the acid mist absorption tank body;

[0026] The drain port is connected with a drain pipe;

[0027] An emptying valve is arranged on the drain pipe.

[0028] Optionally, a liquid level meter is arranged in the acid mist absorption tank body.

[0029] Optionally, the anti-corrosion sealing film is an ETFE film.

[0030] From the above technical solutions, the embodiments of the present application have the following advantages: the hydrochloric acid tank sealing and acid mist absorption composite device can effectively prevent the acid mist in the hydrochloric acid tank body from overflowing outside the manhole sealing cover, prevent the corrosion of metal components in the hydrochloric acid tank body, effectively collect the acid mist in the hydrochloric acid tank body, prolong the service life of the equipment in the hydrochloric acid tank body, and reduce the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic view of the hydrochloric acid tank sealing and acid mist absorption composite device in the embodiments of the present application;

[0032] Among them, the reference signs are:

[0033] 1-hydrochloric acid tank body, 2-anti-corrosion sealing film, 3-manhole sealing cover, 4-emptying valve, 5-drain pipe, 6-first inlet pipe, 7-first inlet valve, 8-second inlet valve, 9-outlet pipe, 10-outlet valve, 11-third inlet valve, 12-second inlet pipe, 13-acid mist absorption tank body, 14-spraying device, 15-circulating water pump. DETAILED DESCRIPTION

[0034] In order to enable the personnel in the technical field to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor are within the scope of protection of the present application.

[0035] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] Unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] The present application provides an embodiment of a hydrochloric acid tank sealing and acid mist absorption composite device, please refer to Figure 1 .

[0038] The hydrochloric acid tank sealing and acid mist absorption composite device in the embodiment comprises a hydrochloric acid tank body 1 and an acid mist absorption tank body 13, the hydrochloric acid tank body 1 is connected with the inlet of the acid mist absorption tank body 13 through a first inlet pipe 6, the acid mist absorption tank body 13 is provided with a clean water circulating back spray system, the hydrochloric acid tank body 1 is provided with a manhole sealing cover 3 at the top, and an anti-corrosion sealing film 2 is arranged between the manhole sealing cover 3 and the hydrochloric acid tank body 1.

[0039] It should be noted that: the hydrochloric acid tank sealing and acid mist absorption composite device can effectively prevent the acid mist in the hydrochloric acid tank body 1 from overflowing outside through the manhole sealing cover 3, prevent the corrosion of metal components in the hydrochloric acid tank body 1, and also effectively collect the acid mist in the hydrochloric acid tank body 1, prolong the service time of the equipment in the hydrochloric acid tank body 1, and reduce the maintenance cost.

[0040] The above is an embodiment of a hydrochloric acid tank sealing and acid mist absorption composite device provided by the embodiment of the present application, and the following is an embodiment of a hydrochloric acid tank sealing and acid mist absorption composite device provided by the embodiment of the present application, please refer to Figure 1 .

[0041] The hydrochloric acid tank sealing and acid mist absorption composite device in the embodiment comprises a hydrochloric acid tank body 1 and an acid mist absorption tank body 13, the hydrochloric acid tank body 1 is connected with the inlet of the acid mist absorption tank body 13 through a first inlet pipe 6, the acid mist absorption tank body 13 is provided with a clean water circulating back-spraying system, the hydrochloric acid tank body 1 is provided with a manhole sealing cover 3 at the top, and an anti-corrosion sealing film 2 is arranged between the manhole sealing cover 3 and the hydrochloric acid tank body 1.

[0042] Specifically, the manhole sealing cover 3 is threadedly connected with the hydrochloric acid tank body 1, and the anti-corrosion sealing film 2 is uniformly arranged at the thread position on the hydrochloric acid tank body 1.

[0043] It can be understood that, by threadedly connecting the manhole sealing cover 3 to the thread position at the top of the hydrochloric acid tank body 1, a good anti-corrosion and sealing effect can be achieved, after sealing is completed, the acid mist generated in the hydrochloric acid tank body 1 will gather at the top of the hydrochloric acid tank body 1, so that a slight positive pressure state is maintained, when the acid mist gathers to a certain extent, the acid mist will enter the acid mist absorption tank body 13 through the first inlet pipe 6, and after entering the acid mist absorption tank body 13, the acid mist meets the clean water sprayed by the clean water circulating back-spraying system, so that the acid mist is quickly absorbed by the water mist and flows into the acid mist absorption tank body 13 to form a clean water circulation.

[0044] The first inlet pipe 6 is provided with a first inlet valve 7.

[0045] The clean water circulating back-spraying system comprises a second inlet pipe 12, a clean water circulating pump 15, an outlet pipe 9 and a spraying device 14, the spraying device 14 is arranged at the inner top of the acid mist absorption tank body 13, one end of the second inlet pipe 12 is connected with the outlet of the acid mist absorption tank body 13, and the other end is connected with the clean water circulating pump 15, the clean water circulating pump 15 is connected with the spraying device 14 through the outlet pipe 9.

[0046] Specifically, the outlet pipe 9 comprises a first pipe and a second pipe, one end of the first pipe is connected with the outlet of the clean water circulating pump 15, the other end is connected with one end of the second pipe, the other end of the second pipe is connected with the spraying device 14, and the diameter of the first pipe is greater than that of the second pipe.

[0047] The second pipe is provided with a second inlet valve 8.

[0048] The inlet of the clean water circulating pump 15 is provided with a third inlet valve 11, and the outlet of the clean water circulating pump 15 is provided with an outlet valve 10.

[0049] The bottom of the acid mist absorption tank body 13 is provided with a drain port, the drain port is connected with a drain pipe 5, and the drain pipe 5 is provided with an emptying valve 4.

[0050] The acid mist absorption tank body 13 can also be provided with a liquid level meter.

[0051] Preferably, the corrosion-proof sealing film 2 can be an ETFE film, which is flexible and can be well arranged in the threads.

[0052] In the specific implementation, 2 / 3 volume of tap water is injected into the acid mist absorption tank body 13, the second inlet valve 8, the third inlet valve 11 and the outlet valve 10 are opened, and the clean water circulating pump 15 is started, so that the clean water in the acid mist absorption tank body 13 flows along the second inlet pipe 12, passes through the third inlet valve 11, the clean water circulating pump 15 and the outlet valve 10, enters the outlet pipe 9, and then flows along the pipeline, enters the spraying device 14 through the second inlet valve 8, and is sprayed from top to bottom to form a clean water circulation.

[0053] After the clean water circulation is formed, the ETFE film is uniformly arranged at the threads on the hydrochloric acid tank body 1, and then the spout sealing cover 3 is threadedly connected to the top threads of the hydrochloric acid tank body 1, so that a good corrosion-proof and sealing effect can be achieved. After the sealing is completed, the acid mist generated in the hydrochloric acid tank body 1 will gather at the top of the hydrochloric acid tank body 1, so that a slight positive pressure state is maintained. When the acid mist gathers to a certain extent, the acid mist will enter the acid mist absorption tank body 13 from right to left through the first inlet pipe 6 and the first inlet valve 7, and then meet the clean water sprayed by the spraying device 14. At this time, the acid mist will be quickly absorbed by the water mist and flow into the acid mist absorption tank body 13 to form a clean water circulation.

[0054] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent features. Such modifications or replacements do not change the essence of the corresponding technical solutions, and do not deviate from the spirit and scope of the technical solutions of the embodiments.

Claims

1. A combined hydrochloric acid tank sealing and acid mist absorption device, characterized by, The utility model relates to a hydrochloric acid tank and acid mist absorption tank body are connected through first inlet pipe, and the acid mist absorption tank body is provided with clean water circulation back spray system, the hydrochloric acid tank body top is provided with the mouth seal cover, the mouth seal cover is provided with the anticorrosion sealing membrane between hydrochloric acid tank body, the anticorrosion sealing membrane is ETFE membrane. The utility model relates to a hydrochloric acid tank and acid mist absorption tank body are connected through first inlet pipe, and the acid mist absorption tank body is provided with clean water circulation back spray system, the hydrochloric acid tank body top is provided with the mouth seal cover, the mouth seal cover is provided with the anticorrosion sealing membrane between hydrochloric acid tank body, the anticorrosion sealing membrane is ETFE membrane. The utility model relates to a hydrochloric acid tank and acid mist absorption tank body are connected through first inlet pipe, and the acid mist absorption tank body is provided with clean water circulation back spray system, the hydrochloric acid tank body top is provided with the mouth seal cover, the mouth seal cover is provided with the anticorrosion sealing membrane between hydrochloric acid tank body, the anticorrosion sealing membrane is ETFE membrane. The utility model relates to a hydrochloric acid tank and acid mist absorption tank body are connected through first inlet pipe, and the acid mist absorption tank body is provided with clean water circulation back spray system, the hydrochloric acid tank body top is provided with the mouth seal cover, the mouth seal cover is provided with the anticorrosion sealing membrane between hydrochloric acid tank body, the anticorrosion sealing membrane is ETFE membrane. The utility model relates to a hydrochloric acid tank and acid mist absorption tank body are connected through first inlet pipe, and the acid mist absorption tank body is provided with clean water circulation back spray system, the hydrochloric acid tank body top is provided with the mouth seal cover, the mouth seal cover is provided with the anticorrosion sealing membrane between hydrochloric acid tank body, the anticorrosion sealing membrane is ETFE membrane. The utility model relates to a hydrochloric acid tank and acid mist absorption tank body are connected through first inlet pipe, and the acid mist absorption tank body is provided with clean water circulation back spray system, the hydrochloric acid tank body top is provided with the mouth seal cover, the mouth seal cover is provided with the anticorrosion sealing membrane between hydrochloric acid tank body, the anticorrosion sealing membrane is ETFE membrane. The utility model relates to a hydrochloric acid tank and acid mist absorption tank body are connected through first inlet pipe, and the acid mist absorption tank body is provided with clean water circulation back spray system, the hydrochloric acid tank body top is provided with the mouth seal cover, the mouth seal cover is provided with the anticorrosion sealing membrane between hydrochloric acid tank body, the anticorrosion sealing membrane is ETFE membrane. The utility model relates to a hydrochloric acid tank and acid mist absorption tank body are connected through first inlet pipe, and the acid mist absorption tank body is provided with clean water circulation back spray system, the hydrochloric acid tank body top is provided with the mouth seal cover, the mouth seal cover is provided with the anticorrosion sealing membrane between hydrochloric acid tank body, the anticorrosion sealing membrane is ETFE membrane. The utility model relates to a hydrochloric acid tank and acid mist absorption tank body are connected through first inlet pipe, and the acid mist absorption tank body is provided with clean water circulation back spray system, the hydrochloric acid tank body top is provided with the mouth seal cover, the mouth seal cover is provided with the anticorrosion sealing membrane between hydrochloric acid tank body, the anticorrosion sealing membrane is ETFE membrane. The utility model relates to a hydrochloric acid tank and acid mist absorption tank body are connected through first inlet pipe, and the acid mist absorption tank body is provided with clean water circulation back spray system, the hydrochloric acid tank body top is provided with the mouth seal cover, the mouth seal cover is provided with the anticorrosion sealing membrane between hydrochloric acid tank body, the anticorrosion sealing membrane is ETFE membrane.

2. The combined hydrochloric acid tank sealing and acid mist absorbing device according to claim 1, characterized in that, The utility model relates to a hydrochloric acid tank and acid mist absorption tank body are connected through first inlet pipe, and the acid mist absorption tank body is provided with clean water circulation back spray system, the hydrochloric acid tank body top is provided with the mouth seal cover, the mouth seal cover is provided with the anticorrosion sealing membrane between hydrochloric acid tank body, the anticorrosion sealing membrane ​ 3. The combined hydrochloric acid tank sealing and acid mist absorbing device according to claim 1, characterized in that, ​ 4. The hydrochloric acid tank sealing and acid mist absorbing combined device according to claim 1, characterized in that, ​ ​ ​ ​ 5. The combined hydrochloric acid tank sealing and acid mist absorbing device according to claim 4, characterized in that, ​ 6. The combined hydrochloric acid tank sealing and acid mist absorbing device of claim 1, wherein ​ ​ 7. The combined hydrochloric acid tank sealing and acid mist absorbing device of claim 1, wherein ​ ​ ​ 8. The hydrochloric acid tank sealing and acid mist absorbing combined device according to claim 1, characterized in that, ​ 9. The hydrochloric acid tank sealing and acid mist absorbing combined device according to claim 1, characterized in that, ​

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