Reaction tower tail gas treatment device

Abstract

The utility model discloses a reaction tower tail gas treatment device which comprises a purification tower, a gas inlet channel and a gas exhaust channel are fixedly installed on the surface of the purification tower respectively, a first partition plate and a second partition plate are fixedly installed in the purification tower respectively, an inner cavity of the purification tower is divided into an upper air cavity, a middle air cavity and a lower air cavity, and a feeding port is fixedly installed at the upper end of the purification tower. A discharge valve is fixedly mounted at the lower end of the purification tower, a central cylinder is fixedly mounted in the purification tower, a plurality of filter holes are formed in the surface of the central cylinder, and an electrically-driven spiral blade is rotationally mounted in the central cylinder. According to the device, a central cylinder is arranged in a purification tower, the central cylinder is used for filling an adsorption material, an activated carbon fiber adsorption material is used for adsorbing harmful impurities in tail gas, tail gas purification is achieved, the filled and solidified adsorption material is pushed to be discharged from a discharge valve through rotation of a spiral blade, meanwhile, a new adsorption material is refilled from a feed port, and the tail gas is purified. The problem that an adsorption material in an existing tail gas treatment device is difficult to replace is solved, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of purification towers, in particular to a reaction tower tail gas treatment device. Background Art

[0002] The production of industrial hydrochloric acid mainly uses chlorine and hydrogen to burn in a synthesis furnace to synthesize hydrogen chloride gas, followed by cooling. The cooled hydrogen chloride gas is then absorbed by dilute hydrochloric acid or water to generate synthetic hydrochloric acid. The exhaust gas generated during production pollutes the environment. The prior art announcement number is CN204159186U, which discloses a graphite tail gas purification tower. The tower body shell is made of graphite and is divided into a liquid chamber, a tail gas intake chamber, a lower cooling chamber, an adsorption chamber, and a purification gas chamber from bottom to top. The liquid chamber is used to hold substances that are liquefied after cooling, the tail gas intake chamber is used for tail gas to enter, and the cooling chamber is used for condensing substances that are easily liquefied in the tail gas. There is a heating coil in the adsorption chamber, and the surrounding of the heating coil is covered with activated carbon fiber adsorbents for absorbing useful substances or pollutants in the tail gas. Non-toxic gaseous substances are emptied after passing through the purification gas chamber. The tail gas purification tower of the utility model is resistant to high and low temperatures and has strong corrosion resistance. The filtration and adsorption capacity of the adsorbent material is strong, the tail gas purification effect is good, and the adsorbent material can be desorbed and restored, and the service life is long.

[0003] In actual use, the carbon fiber adsorbent used needs to be replaced regularly. However, this type of purification tower has the problem that the adsorbent is difficult to replace, which brings inconvenience to use and needs further improvement and optimization. Utility Model Content

[0004] The utility model aims to provide a reaction tower tail gas treatment device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reaction tower tail gas treatment device, comprising a purification tower, on the surface of which an air intake channel and an exhaust channel are fixedly installed, and inside of the purification tower are fixedly installed a first partition and a second partition, respectively. The first partition and the second partition divide the inner cavity of the purification tower into three wind cavities, namely, an upper wind cavity, a second wind cavity and a third wind cavity, respectively. The exhaust channel is connected to the second wind cavity, and the air intake channel is connected to the third wind cavity.

[0006] A feed port is fixedly installed at the upper end of the purification tower, and a discharge valve is fixedly installed at the lower end thereof. A central tube is fixedly installed inside the purification tower, and a plurality of filter holes are provided on the surface of the central tube. An electrically driven spiral blade is rotatably installed in the central tube. The feed port is communicated with the upper opening of the central tube, and the lower opening of the central tube is communicated with the discharge valve. The adsorbent is filled into the central tube from the feed port, and the adsorbent covers all around the spiral blade. The spiral blade rotates to push the adsorbent to be discharged from the discharge valve, thereby solving the problem of difficult replacement of the adsorbent in the existing tail gas treatment device and making it more convenient to use.

[0007] Preferably, the central tube is vertically arranged and passes through the first partition and the second partition, the top of the central tube extends into the first wind cavity, a transmission shaft is rotatably installed in the central tube, the spiral blades are fixedly installed on the surface of the transmission shaft, and a first drive motor is fixedly installed at the bottom of the purification tower. The bottom end of the transmission shaft extends downward and is fixedly connected to the rotating shaft of the first drive motor to drive the spiral blades to rotate, and the spiral blades are used to discharge the expired adsorbent material.

[0008] Among them, a feed hopper is fixedly installed on the upper side of the second partition, the lower opening of the feed hopper is connected to the upper opening of the central tube, and a rotating blade is rotatably installed in the feed hopper. A second drive motor is fixedly installed on the top of the purification tower, and the second drive motor drives the rotating blade to rotate. The rotating blade has multiple blades, and each blade of the rotating blade has an arc structure and is arranged in a circular array. The rotation process of the rotating blade facilitates the filling of the adsorbent in the feed hopper into the central tube.

[0009] Preferably, an air storage tank is fixedly installed on the outside of the purification tower, and a plurality of back-blowing air pipes are fixedly installed on the surface of the air storage tank. The outlet end of the back-blowing air pipe extends into the first wind cavity, and sufficient high-pressure airflow is introduced into the first wind cavity from the back-blowing air pipe, thereby increasing the air pressure in the central tube and the third wind cavity, and back-blowing and clearing the filter holes and filter plates.

[0010] Preferably, the surface of the purification tower is respectively provided with a first inspection door and a second inspection door, the first inspection door is connected to the third air cavity, and the second inspection door is connected to the second air cavity, a rotating disk is rotatably installed in the third air cavity, a mounting ring is fixedly installed on the upper side of the rotating disk, the outer side of the mounting ring is in sliding contact with the interior of the first air cavity, and a plurality of annular array slots are provided on the outer side of the mounting ring, and a filter plate is clamped in each slot, the filter plate blocks the entrance of the air inlet channel, the area of ​​the filter plate is smaller than the size of the hole of the first inspection door, so that the filter plate can be taken out from the first inspection door, which is convenient for the replacement of the filter plate and provides convenience for daily maintenance and replacement.

[0011] Beneficial Effects

[0012] The utility model provides a reaction tower tail gas treatment device, which has the following beneficial effects:

[0013] 1. The reaction tower tail gas treatment device, by arranging a central tube in the purification tower, using the central tube to fill adsorbent, using activated carbon fiber adsorbent to adsorb harmful impurities in the tail gas, to achieve tail gas purification, using the rotation of the spiral blade to push the filled and solidified adsorbent to be discharged from the discharge valve, and at the same time, refilling new adsorbent from the feed port, solves the problem of difficult replacement of adsorbent in the existing tail gas treatment device, and is more convenient to use.

[0014] 2. The reaction tower tail gas treatment device, by installing a filter plate on the mounting ring, the filter plate can filter the exhaust gas input from the air inlet channel in advance to remove larger particles of impurities, and the mounting ring can be manually rotated, and the used filter plate can be replaced from the first inspection door. The position of each filter plate can be switched during the manual rotation of the mounting ring, which provides convenience for daily maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front section structure of the utility model;

[0017] Figure 3 for Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 4 This is a schematic diagram of the top-down structure of the feed hopper.

[0019] In the figure: 1 purification tower, 2 air inlet channel, 3 exhaust channel, 4 first baffle, 5 second baffle, 6 first air cavity, 7 second air cavity, 8 third air cavity, 9 feed port, 10 discharge valve, 11 center tube, 12 filter hole, 13 spiral blade, 14 first drive motor, 15 feed hopper, 16 rotating blade, 17 second drive motor, 18 air storage tank, 19 back-blowing air pipe, 20 first inspection door, 21 second inspection door, 22 rotating disk, 23 mounting ring, 24 filter plate. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4The utility model provides a technical solution: a reaction tower tail gas treatment device, comprising a purification tower 1, an air intake channel 2 and an exhaust channel 3 are fixedly installed on the surface of the purification tower 1, a first partition plate 4 and a second partition plate 5 are fixedly installed inside the purification tower 1, the first partition plate 4 and the second partition plate 5 divide the inner cavity of the purification tower 1 into three wind cavities of upper, middle and lower, the three wind cavities are respectively a first wind cavity 6, a second wind cavity 7 and a third wind cavity 8, the exhaust channel 3 is connected with the second wind cavity 7, and the air intake channel 2 is connected with the third wind cavity 8.

[0022] A feed port 9 is fixedly installed at the upper end of the purification tower 1, and a discharge valve 10 is fixedly installed at the lower end thereof. A central tube 11 is fixedly installed inside the purification tower 1, and a plurality of filter holes 12 are provided on the surface of the central tube 11. An electrically driven spiral blade 13 is rotatably installed inside the central tube 11. The feed port 9 is communicated with the upper opening of the central tube 11, and the lower opening of the central tube 11 is communicated with the discharge valve 10.

[0023] Among them, the central tube 11 is vertically arranged and passes through the first partition 4 and the second partition 5. The top end of the central tube 11 extends into the first wind cavity 6. A transmission shaft is rotatably installed in the central tube 11. The spiral blades 13 are fixedly installed on the surface of the transmission shaft. The first drive motor 14 is fixedly installed at the bottom of the purification tower 1. The bottom end of the transmission shaft extends downward and is fixedly connected to the rotating shaft of the first drive motor 14.

[0024] A feed hopper 15 is fixedly installed on the upper side of the second partition 5, and the lower opening of the feed hopper 15 is connected to the upper opening of the central tube 11. A rotating blade 16 is rotatably installed in the feed hopper 15. The rotating blade 16 has multiple blades, and each blade of the rotating blade 16 has an arc structure and is arranged in a circular array. A second drive motor 17 is fixedly installed on the top of the purification tower 1, and the second drive motor 17 drives the rotating blade 16 to rotate.

[0025] The carbon fiber adsorbent is transported from the feed port 9 to the feed hopper 15, and then the feed port 9 is closed to ensure that the top of the purification tower 1 is closed. The second drive motor 17 drives the rotating blades 16 to rotate, and the carbon fiber adsorbent is poured into the central tube 11. After the adsorbent is filled into the central tube 11 from the feed port 9, the adsorbent covers the surroundings of the spiral blades 13. When the first drive motor 14 is driven, the spiral blades 13 rotate to push the adsorbent to be discharged from the discharge valve 10.

[0026] In this embodiment, a first inspection door 20 and a second inspection door 21 are respectively provided on the surface of the purification tower 1 . The first inspection door 20 is connected to the third air cavity 8 , and the second inspection door 21 is connected to the second air cavity 7 .

[0027] A rotating disk 22 is rotatably mounted on the bottom of the third air chamber 8 through an end bearing, and a mounting ring 23 is fixedly mounted on the upper side of the rotating disk 22. The outer side of the mounting ring 23 is in sliding contact with the interior of the first air chamber 6, and a plurality of annular array slots are provided on the outer side of the mounting ring 23, and a filter plate 24 is clamped in each slot. The filter plate 24 blocks the entrance of the air inlet channel 2, and the area of ​​the filter plate 24 is smaller than the hole size of the first inspection door 20, so that the filter plate 24 can be taken out from the first inspection door 20.

[0028] During use, the exhaust gas is input into the third air chamber 8 through the air inlet channel 2, and then enters the central tube 11 through the filter hole 12. The carbon fiber adsorbent absorbs impurities in the exhaust gas, and then enters the second air chamber 7 and is discharged from the exhaust channel 3. The filter plate 24 is installed around the mounting ring 23. The filter plate 24 can filter the exhaust gas input from the air inlet channel 2 in advance to remove larger particles of impurities. The mounting ring 23 can be rotated manually, and the used filter plate 24 can be replaced from the first inspection door 20. The process of manually rotating the mounting ring 23 can switch the position of each filter plate 24 to avoid blockage of the entrance of the air inlet channel 2, thereby providing convenience for daily maintenance and replacement.

[0029] An air storage tank 18 is fixedly installed on the outside of the purification tower 1, and a plurality of back-blowing air pipes 19 are fixedly installed on the surface of the air storage tank 18. The outlet end of the back-blowing air pipe 19 extends into the first air cavity 6, and sufficient high-pressure airflow is introduced into the first air cavity 6 from the back-blowing air pipe 19, thereby increasing the air pressure in the central tube 11 and the third air cavity 8, and back-blowing and clearing the filter holes 12 and the filter plates 24.

[0030] The reaction tower tail gas treatment device, by arranging a central tube 11 in a purification tower 1, using the central tube 11 to fill adsorbent, using activated carbon fiber adsorbent to adsorb harmful impurities in the tail gas, achieves tail gas purification, and utilizes the rotation of the spiral blade 13 to push the filled and solidified adsorbent in the central tube 11 to be discharged from the discharge valve 10. At the same time, new adsorbent is refilled from the feed hopper 15 into the central tube 11, thereby solving the problem of difficult replacement of adsorbent in existing tail gas treatment devices and making it more convenient to use.

[0031] 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 reaction tower tail gas treatment device, comprising a purification tower (1), characterized in that: An air intake channel (2) and an air exhaust channel (3) are fixedly mounted on the surface of the purification tower (1), and a first partition plate (4) and a second partition plate (5) are fixedly mounted inside the purification tower (1), the first partition plate (4) and the second partition plate (5) divide the inner cavity of the purification tower (1) into three wind cavities, namely, an upper wind cavity, a middle wind cavity and a lower wind cavity, the three wind cavities being respectively a first wind cavity (6), a second wind cavity (7) and a third wind cavity (8), the exhaust channel (3) being connected to the second wind cavity (7), and the air intake channel (2) being connected to the third wind cavity (8); A feed port (9) is fixedly installed at the upper end of the purification tower (1), and a discharge valve (10) is fixedly installed at the lower end thereof. A central tube (11) is fixedly installed inside the purification tower (1), and a plurality of filter holes (12) are provided on the surface of the central tube (11). An electrically driven spiral blade (13) is rotatably installed inside the central tube (11). The feed port (9) is communicated with an upper opening of the central tube (11), and a lower opening of the central tube (11) is communicated with the discharge valve (10). Adsorbent is filled into the central tube (11) from the feed port (9), and the adsorbent is spread around the spiral blade (13). The spiral blade (13) rotates to push the adsorbent to be discharged from the discharge valve (10).

2. A reaction tower tail gas treatment device according to claim 1, characterized in that: The central tube (11) is vertically arranged and passes through the first partition plate (4) and the second partition plate (5), the top end of the central tube (11) extends into the first air chamber (6), a transmission shaft is rotatably installed in the central tube (11), the spiral blades (13) are fixedly installed on the surface of the transmission shaft, and a first drive motor (14) is fixedly installed at the bottom of the purification tower (1), and the bottom end of the transmission shaft extends downward and is fixedly connected to the rotating shaft of the first drive motor (14).

3. A reaction tower tail gas treatment device according to claim 2, characterized in that: A feed hopper (15) is fixedly mounted on the upper side of the second partition plate (5), a lower opening of the feed hopper (15) is connected to an upper opening of the central tube (11), a rotating blade (16) is rotatably mounted inside the feed hopper (15), and a second drive motor (17) is fixedly mounted on the top of the purification tower (1), and the second drive motor (17) drives the rotating blade (16) to rotate.

4. A reaction tower tail gas treatment device according to claim 3, characterized in that: The rotating blade (16) has a plurality of blades, and each blade of the rotating blade (16) has an arc-shaped structure and is arranged in a circular array.

5. A reaction tower tail gas treatment device according to claim 4, characterized in that: An air storage tank (18) is fixedly mounted on the outside of the purification tower (1), and a plurality of back-blowing air pipes (19) are fixedly mounted on the surface of the air storage tank (18), wherein the outlet ends of the back-blowing air pipes (19) extend into the first air cavity (6).

6. A reaction tower tail gas treatment device according to any one of claims 1 to 5, characterized in that: A first inspection door (20) and a second inspection door (21) are respectively provided on the surface of the purification tower (1); the first inspection door (20) is connected to the third air cavity (8), and the second inspection door (21) is connected to the second air cavity (7).

7. A reaction tower tail gas treatment device according to claim 6, characterized in that: A rotating disk (22) is rotatably mounted in the third air cavity (8), a mounting ring (23) is fixedly mounted on the upper side of the rotating disk (22), the outer side of the mounting ring (23) is in sliding contact with the inside of the first air cavity (6), and a plurality of annular array slots are provided on the outer side of the mounting ring (23), and a filter plate (24) is clamped in each slot, and the filter plate (24) blocks the entrance of the air inlet channel (2).

8. A reaction tower tail gas treatment device according to claim 7, characterized in that: The area of ​​the filter plate (24) is smaller than the hole size of the first inspection door (20), so that the filter plate (24) can be taken out from the first inspection door (20).

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