CN214261298U

CN214261298U - Tail gas purification absorption tower

Info

Publication number: CN214261298U
Application number: CN202120029724.4U
Authority: CN
Inventors: 黄德超
Original assignee: Guangxi Qinzhou Tengkeji Composite Material Co ltd
Current assignee: Guangxi Qinzhou Tengkeji Composite Material Co ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-09-24
Anticipated expiration: 2031-01-07

Abstract

The utility model discloses a tail gas purification absorption tower, which comprises a tower body, wherein a tail gas inlet is arranged on the side surface of the tower body, a drain outlet is arranged at the bottom of the tower body, a tail gas exhaust port is arranged at the top of the tower body, a filtering component is arranged inside the tower body, and a spraying component is arranged above the filtering component; the filtering component comprises a partition board, a round hole is formed in the partition board, and filtering nets are arranged at two ends of the round hole; the spraying assembly comprises a water inlet pipe arranged on the inner side of the tower body and a spray head arranged on the water inlet pipe, and the spray head faces downwards to the filtering assembly; the spraying assembly is provided with a processing assembly. The filter screen in the novel filter assembly can block particulate matters in the tail gas, and the round holes and the buffer cavities on the partition board can prolong the time of the tail gas passing through the filter assembly, so that the tail gas is fully contacted with water, and the particulate matters in the tail gas are removed; the treatment box removes acid oxides in tail gas by spraying alkali liquor, and secondary treatment of the tail gas can be realized by the bulge arranged on the treatment box, so that the full and complete treatment is ensured.

Description

Tail gas purification absorption tower

Technical Field

The utility model belongs to the technical field of the tail gas treatment, concretely relates to tail gas purification absorption tower.

Background

The absorption tower is a device for treating industrial production tail gas. Because the tail gas will be carried with dust particles and acid oxide and other harmful components, the processing method is generally water treatment and alkali solution treatment. However, when the existing absorption tower is used, because the tail gas has a certain temperature and the rising speed is high, the contact time of the tail gas with water and an alkali solution is too short, the problem of insufficient treatment exists, and the finally discharged tail gas still carries dust particles, acidic oxides and other components, thus causing adverse effects on the environment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tail gas purification absorption tower to solve above-mentioned technical problem.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a tail gas purification absorption tower comprises a tower body, wherein a tail gas inlet is formed in the side face of the tower body, a drain outlet is formed in the bottom of the tower body, a tail gas exhaust port is formed in the top of the tower body, a filtering assembly is arranged inside the tower body, and a spraying assembly is arranged above the filtering assembly; the filter assembly comprises a partition plate, a circular hole is formed in the partition plate, and filter screens are arranged at two ends of the circular hole; the spraying assembly comprises a water inlet pipe arranged on the inner side of the tower body and a spray head arranged on the water inlet pipe, and the spray head faces downwards to the filtering assembly; the circular holes arranged on the filtering component can enable the tail gas to pass through, and the filtering nets arranged on the two sides of the circular holes can block particulate matters in the tail gas and prevent the particulate matters from moving upwards along with the tail gas; thereby the spraying assembly who sets up washes the bottom to the absorption tower with the particulate matter in the tail gas, the harmful component who dissolves in water through the shower nozzle water spray to make tail gas obtain purification treatment.

Furthermore, a hollow buffer cavity is arranged in the round hole, the shape structure of the buffer cavity is that two ends are small and the middle is large, and the two ends of the buffer cavity are flush with the two ends of the round hole; be provided with the big cushion chamber in the middle of the little both ends in the round hole to the time of extension tail gas through the baffle makes tail gas fully and the water phase contact that the shower nozzle sprayed, thereby washes particulate matter, water-soluble composition in the tail gas to the bottom of absorption tower with the water.

Further, the number of the round holes on the partition plate is gradually increased along with the distance from the air inlet; because tail gas passes round hole rebound, consequently, the round hole that sets up on the baffle far away from the air inlet is more, can make tail gas pass the round hole on the baffle of keeping away from air inlet one end to prolonged the time that tail gas passes through the baffle, the hydroenergy that the messenger sprayed the subassembly and tail gas contact more fully completely, thereby the bottom to the tower body is washed to the harmful component of particulate matter in with tail gas and the easy-to-dissolve aquatic through the effect of water, guarantees the purifying effect of tail gas.

Furthermore, a sealing layer is arranged on the side surface of the partition plate so that the side surface of the partition plate is tightly attached to the inner side of the tower body; a rotating shaft connected with the inner side of the tower body is oppositely arranged on the side surface of the partition plate, and one end of the rotating shaft is connected with a motor arranged on the outer side of the tower body; the round hole distribution rule on the baffle mainly makes tail gas can dispersedly to moving on the absorption tower, prolongs the contact time of tail gas and the water that sprays out of spraying assembly to the bottom of particulate matter in the better with tail gas washes to the absorption tower.

Furthermore, the absorption tower also comprises a processing component arranged above the spraying component, the processing component comprises a processing box, the side surface of the processing box is provided with an air inlet, the top of the processing box is provided with an air outlet, an alkaline liquor pipe is arranged in the processing box, and an alkaline liquor spray head is arranged at the bottom of the alkaline liquor pipe; because the components in the tail gas generally contain oxysulfide or nitric oxide and other acidic oxygen substances, the alkaline solution sprayed by the alkaline solution spray head arranged in the treatment tank can react with the acidic oxides in the tail gas, so that the harmful components in the tail gas are treated, and the purification effect of the tail gas is ensured.

Further, a liquid outlet is formed in the bottom of the treatment box, the liquid outlet penetrates through the side faces of the treatment box and the tower body, and a pH sensor is arranged above the liquid outlet; when the absorption tower is used for a period of time, waste liquid formed after reaction of alkali liquor and tail gas in the treatment box is accumulated at the bottom of the treatment box, and more waste liquid can be accumulated after the absorption tower is used for a longer period of time, so that the arranged liquid outlet is used for timely discharging the waste liquid at the lower part of the treatment box, and the influence of excessive waste liquid at the bottom of the treatment box on the normal use of the absorption tower is avoided; the pH sensor that sets up above the leakage fluid dram can detect the pH value of handling the inside waste liquid of case for judge the tail gas treatment condition.

Furthermore, a baffle is arranged outside the air inlet, a connecting plate is arranged outside the baffle and is hinged with the inner side of the tower body, and the specific hinge mode is that a rotating shaft is connected; the bottom of the baffle is provided with a supporting block; the baffle plate is arranged outside the air inlet and can prevent tail gas from entering the treatment box, and when the tail gas in the tower body is accumulated to a certain amount, the rising tail gas can lift the connecting plate upwards, so that the tail gas enters the treatment box; so set up the detention time that can prolong tail gas in the tower body, ensure that the particulate matter in the tail gas is washed the bottom to the tower body by the water, avoid tail gas to smuggle particulate matter secretly and influence processing operation on next step.

Furthermore, a bulge is arranged on one side, close to the air inlet, of the top of the treatment box, a movable rod is arranged in the bulge, the movable rod penetrates through two sides of the bulge, and one end of the movable rod is connected with a pneumatic device arranged on the outer side of the tower body; carry out reaction treatment tail gas through alkali lye in handling the incasement, probably can handle insufficiently completely, at this moment, make the movable rod toward removing outward through pneumatic means's operation, make the movable rod retract to protruding inside, tail gas will enter into protruding inside from the hole on the movable rod primary position again, then react with alkali lye again, guarantee that the acid composition in the tail gas handles fully completely.

Furthermore, an exhaust pipe is arranged on the exhaust port, the tail end of the exhaust pipe extends into the bulge, and the exhaust pipe and the movable rod are positioned on the same horizontal plane so that the tail end of the movable rod extends into the exhaust pipe; the tail gas exhaust port penetrates through the top of the tower body and is connected with the exhaust pipe; when the amount of acidic oxides possibly contained in the tail gas is large, the primary alkali treatment may be insufficient, and the tail gas is directly discharged outwards, so that the environment can be polluted; therefore, one end of the additionally arranged exhaust pipe is connected with the exhaust gas, the other end of the additionally arranged exhaust pipe extends into the bulge, when the tail gas needs to be subjected to secondary treatment or multiple treatments, a valve on the exhaust port of the tail gas is closed, the pneumatic device is started to move the movable rod to one side of the tower body, the movable rod is integrated from the side surface of the bulge, and the reserved hole can enable the tail gas to enter the bulge from the exhaust pipe, so that the tail gas is subjected to reaction treatment with alkali liquor again in the treatment box, and the tail gas is ensured to be sufficiently and completely treated; if the tail gas can be directly discharged after being treated, the movable rod is blocked in the exhaust pipe in the initial state, and the tail gas exhaust port is opened at the moment, so that the treated tail gas can be discharged.

The utility model has the advantages that: 1. the filter screen in the novel filter assembly can prevent particles in the tail gas from moving upwards, the particles in the tail gas are washed to the bottom of the absorption tower by spraying water through the spray head of the spraying assembly, and the round holes formed in the partition plate and the buffer cavities in the round holes can prolong the time for the tail gas to pass through the filter assembly, so that the tail gas is in full contact with water, and the particles in the tail gas and harmful components dissolved in the water are better removed; 2. the arranged treatment box removes acid oxides in the tail gas by spraying alkali liquor, so that the tail gas is further purified; 3. the bulge arranged at the top of the treatment box and the piston rod arranged in the bulge are used for secondary treatment or multiple treatment of the tail gas, so that harmful components such as acidic oxides in the tail gas are completely removed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a circular hole structure.

Fig. 3 is a partially enlarged view of a portion a of fig. 1.

Fig. 4 is a partially enlarged view of a portion B of fig. 1.

Reference numerals: 1-tower body, 11-tail gas inlet, 12-sewage outlet, 13-tail gas exhaust outlet, 2-filtering component, 21-clapboard, 22-round hole, 221-filter screen, 222-buffer cavity, 23-sealing layer, 24-rotating shaft, 25-motor, 3-spraying component, 31-water inlet pipe, 32-spray head, 4-processing component, 41-processing box, 42-air inlet, 43-connecting plate, 431-baffle, 432-supporting block, 44-lye pipe, 45-lye spray head, 46-liquid outlet, 47-pH sensor, 48-exhaust outlet, 481-exhaust pipe, 49-bulge, 491-movable rod and 492-pneumatic device.

Detailed Description

In order to facilitate a better understanding of the invention, the following examples are given with reference to the accompanying drawings, which belong to the scope of protection of the invention, but do not limit the scope of protection of the invention.

Examples

A tail gas purification absorption tower is shown in figure 1, and comprises a tower body 1, wherein a tail gas inlet 11 is formed in the side surface of the tower body 1, a sewage discharge outlet 12 is formed in the bottom of the tower body 1, a tail gas exhaust port 13 is formed in the top of the tower body 1, a filter assembly 2 is arranged inside the tower body 1, and a spraying assembly 3 is arranged above the filter assembly 2; the filter assembly 2 comprises a partition plate 21, a circular hole 22 is formed in the partition plate 21, and filter screens 221 are arranged at two ends of the circular hole 22; the spraying component 3 comprises a water inlet pipe 31 arranged on the inner side of the tower body 1 and a spray head 32 arranged on the water inlet pipe 31, and the spray head 32 faces downwards to the filtering component 2; valves are arranged on the tail gas inlet, the sewage draining outlet and the tail gas exhaust port, and the valves can be electric, so that the operation and the use are convenient; the water inlet pipe is provided with a valve or a flow valve outside the tower body.

As shown in fig. 1 and 2, a hollow buffer chamber 222 is disposed in the circular hole 22, the buffer chamber 222 has a shape structure with two smaller ends and a larger middle, and the two ends of the buffer chamber 222 are flush with the two ends of the circular hole 22.

As shown in fig. 1, the number of the circular holes 22 in the partition plate 21 gradually increases as the distance from the intake port 11 increases.

As shown in fig. 1, the side surface of the partition plate 21 is provided with a sealing layer 23 so that the side surface of the partition plate 21 is tightly attached to the inner side of the tower body 1; the side surface of the partition plate 21 is oppositely provided with a rotating shaft 24 connected with the inner side of the tower body 1, and one end of the rotating shaft 24 is connected with a motor 25 arranged on the outer side of the tower body 1; the pivot that sets up can use the baffle upset, uses after a period when being stained with the dust granule on the filter screen of round hole one side, can the starter motor with the baffle upset, the filter screen of adhesion dust granule makes progress this moment, through the direct not hard up back of washing of water, resets the baffle upset again, and the dust granule of adhesion on the filter screen can fall to the bottom of tower body.

As shown in fig. 1, the absorption tower further comprises a processing assembly 4 disposed above the spraying assembly 3, the processing assembly 4 comprises a processing box 41, an air inlet 42 is disposed on a side surface of the processing box 41, an air outlet 48 is disposed on a top of the processing box 41, an alkali liquor pipe 44 is disposed inside the processing box 41, and an alkali liquor spraying nozzle 45 is disposed at a bottom of the alkali liquor pipe 44; the alkaline liquid pipe is provided with the valve on tower body outside part for the entering of control alkali lye, or use flow valve, be used for the size of control flow.

As shown in FIG. 1, a drain port 46 is provided at the bottom of the treatment tank 41, the drain port 46 penetrates the treatment tank 41 and the side surface of the column body 1, and a pH sensor 47 is provided above the drain port 46.

As shown in fig. 1 and 4, a baffle 431 is arranged outside the air inlet 42, the baffle 431 partially blocks the air inlet 42, a connecting plate 43 is arranged outside the baffle 431, and the connecting plate 43 is hinged with the inside of the tower body 1; the bottom of the baffle 431 is provided with a supporting block 432; a plate is used for plugging the upper part of the connecting plate to prevent tail gas from moving upwards; the pneumatic assembly used may be a pneumatic cylinder.

As shown in fig. 1 and 3, a protrusion 49 is provided on the top of the treatment tank 41 near the air inlet 42, a movable rod 491 is provided in the protrusion 49, and one end of the movable rod 491 is connected to a pneumatic device 492 provided outside the tower body 1.

As shown in fig. 1 and 3, an exhaust tube 481 is provided on the exhaust port 48, the end of the exhaust tube 481 extends into the protrusion 49, and the exhaust tube 481 is located at the same level with the movable rod 491 so that the end of the movable rod 491 extends into the exhaust tube 481; the tail gas exhaust port 13 is connected to an exhaust pipe 481 through the top of the tower 1.

In this neotype device, the specific model of motor, pH sensor, pneumatic means etc. that relate to is not this neotype improvement point, does not describe here any longer.

The using method comprises the following steps: firstly, closing valves on a sewage draining outlet, a tail gas exhaust port and a liquid discharging port; tail gas enters the tower body from a tail gas inlet, and a valve on a water inlet pipe of the spraying assembly is opened, so that water is sprayed towards the filtering assembly through the spray head; the tail gas firstly reaches the filtering assembly, and when the tail gas passes through the filtering screen on the side surface of the circular hole, the filtering screen blocks particulate matters in the tail gas, so that the particulate matters are prevented from passing through the buffer cavity to move upwards and entering a next treatment link; the filter screens arranged on the two sides of the circular hole can ensure that particulate matters in the tail gas can be fully blocked; the water sprayed on the spraying assembly can wash the particles in the tail gas to the bottom of the tower body, and meanwhile, the sprayed water can also wash part of the particles adhered to the filter screen; the buffer cavity is small at two ends and large in the middle, so that the passing time of the tail gas can be prolonged, the tail gas is fully contacted with water, and particulate matters in the tail gas are removed; when the tail gas passes through the buffer cavity, the tail gas continues to move upwards and reaches the processing assembly above the spraying assembly; the baffle is arranged at the air inlet of the treatment box, so that the connecting plate is difficult to lift upwards by the rising tail gas when the tail gas quantity is small, and the time for the tail gas to enter the treatment box is prolonged because the air inlet is partially blocked by the baffle; when a certain amount of tail gas is accumulated, the rising tail gas lifts the connecting plate upwards, so that the tail gas enters the treatment box through the gas inlet; opening a valve on the alkali liquor pipe to enable the alkali liquor to be sprayed out from the alkali liquor spray head, enabling the alkali liquor to react with the acidic oxides in the tail gas, and enabling the waste liquor after reaction to fall to the bottom of the treatment box; opening a valve on the tail gas exhaust port, discharging the treated tail gas from the exhaust port, and discharging the treated tail gas outwards through the tail gas exhaust port; the pH sensor arranged on the side surface of the treatment box can detect the pH value of waste liquid at the bottom of the treatment box, for example, the content of acid gas in tail gas is high, when the pH value of the waste liquid at the bottom of the treatment box detected by the pH sensor is acidic due to insufficient reaction with alkali liquor, a valve for closing a tail gas exhaust port on the exhaust pipe firstly can be closed, the pneumatic device is started to enable the movable rod to move towards one side of the tower body, the movable rod retracts into the bulge, a hole is formed on the side surface of the bulge at the moment, so that the tail gas enters the bulge through the exhaust pipe and then enters the treatment box, and secondary treatment or multiple treatment of the tail gas is realized; after the treatment is finished, the movable rod is reset through a pneumatic device to block the hole on the side face of the protrusion, and the tail gas exhaust port is opened to discharge the tail gas outwards; when the treatment box is used for a period of time and the reaction waste liquid at the bottom of the treatment box is too much, opening a liquid outlet to discharge the waste liquid for treatment; after the absorption tower operates for a period of time, when the waste water at the bottom of the tower body is excessive, the sewage draining outlet can be opened to discharge the waste water.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising" is used to specify the presence of stated elements, but not to preclude the presence or addition of additional like elements in a process, method, article, or apparatus that comprises the stated elements.

Claims

1. The tail gas purification absorption tower is characterized by comprising a tower body (1), wherein a tail gas inlet (11) is formed in the side face of the tower body (1), a sewage discharge outlet (12) is formed in the bottom of the tower body (1), a tail gas exhaust port (13) is formed in the top of the tower body (1), a filtering component (2) is arranged in the tower body (1), and a spraying component (3) is arranged above the filtering component (2);

the filter assembly (2) comprises a partition plate (21), a circular hole (22) is formed in the partition plate (21), and filter screens (221) are arranged at two ends of the circular hole (22);

spray subassembly (3) including set up in inlet tube (31) of tower body (1) inboard, set up in shower nozzle (32) on inlet tube (31), shower nozzle (32) are towards filtering component (2) downwards.

2. The tail gas purifying and absorbing tower of claim 1, wherein a hollow buffer chamber (222) is arranged in the circular hole (22), the buffer chamber (222) has a shape structure with two small ends and a large middle, and the two ends of the buffer chamber (222) are flush with the two ends of the circular hole (22).

3. The exhaust gas purifying and absorbing tower according to claim 2, wherein the number of the circular holes (22) on the partition (21) is gradually increased with the distance from the air inlet (42).

4. The exhaust gas purifying and absorbing tower according to claim 3, wherein the side of the partition (21) is provided with a sealing layer (23) to make the side of the partition (21) closely contact with the inner side of the tower body (1); the baffle (21) side is provided with pivot (24) that link to each other with tower body (1) inboard relatively, the one end of pivot (24) with set up in motor (25) in the tower body (1) outside link to each other.

5. The tail gas purifying and absorbing tower of any one of claims 1 to 4, further comprising a treatment assembly (4) disposed above the spraying assembly (3), wherein the treatment assembly (4) comprises a treatment tank (41), an air inlet (42) is disposed on a side surface of the treatment tank (41), an air outlet (48) is disposed on a top portion of the treatment tank (41), a lye pipe (44) is disposed inside the treatment tank (41), and a lye nozzle (45) is disposed at a bottom portion of the lye pipe (44).

6. The tail gas purifying and absorbing tower of claim 5, wherein a liquid outlet (46) is formed at the bottom of the treatment tank (41), the liquid outlet (46) penetrates through the side surfaces of the treatment tank (41) and the tower body (1), and a pH sensor (47) is arranged above the liquid outlet (46).

7. The tail gas purifying and absorbing tower of claim 6, wherein a baffle (431) is arranged outside the gas inlet (42), a connecting plate (43) is arranged outside the baffle (431), and the connecting plate (43) is hinged with the inner side of the tower body (1); the bottom of the baffle (431) is provided with a supporting block (432).

8. The tail gas purifying and absorbing tower of claim 7, wherein a protrusion (49) is disposed at a side of the top of the processing box (41) near the gas inlet (42), a movable rod (491) is disposed in the protrusion (49), and one end of the movable rod (491) is connected to a pneumatic device (492) disposed outside the tower body (1).