Decomposing device for industrial kiln tail gas SOx

Abstract

The utility model relates to the technical field of tail gas decomposition, and discloses an industrial kiln tail gas SOx decomposition device which comprises a base, an absorption tower is fixedly connected to the right side of the top of the base, a tower cover is arranged on the upper side of the absorption tower, a collection hopper is fixedly connected to the lower middle portion of the inner side of the absorption tower, and the bottom of the collection hopper is communicated with a collection pipe. A circular filter screen is fixedly connected to the upper middle portion of the inner side of the collecting pipe, a transmission rod is rotationally connected to the middle of the bottom end of the circular filter screen, an impeller is fixedly connected to the bottom end of the transmission rod, and the top end of the transmission rod penetrates through the circular filter screen and is fixedly connected with a scraper. According to the utility model, the circular filter screen can filter precipitates, an alkaline solution can fall into the water tank through the collecting pipe, and the impeller can drive the scraper to rotate through the transmission rod, so that the precipitates on the circular filter screen can be scraped into the collecting ring through the discharge hole, and the recycling of the alkaline solution can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to tail gas decomposition technical field especially relates to a kind of decomposition device for industrial kiln tail gas SOx. BACKGROUND

[0002] SOx in industrial kiln tail gas refers to the oxide of sulfur, mainly including sulfur dioxide and sulfur trioxide, in the operation process of industrial kiln, because the coal and petroleum containing sulfur element are used, these sulfur will react with oxygen when burning, generate SOx.

[0003] With the rapid development of industry, industrial kiln is widely used in many production fields, but a large amount of tail gas is generated when industrial kiln is running, and SOx in it becomes a pollution problem to be solved, SOx is harmful to environment and human health, and is one of the main culprits of acid rain, and SOx has irritability, which can cause lung disease after being inhaled by human body, at this time, a kind of decomposition device for industrial kiln tail gas SOx is needed.

[0004] At present, the decomposition device for industrial kiln tail gas SOx on the market mainly consists of absorption tower, spray pipe, demisting pipe and air blowing device, when using the device, first, industrial kiln tail gas is sent into absorption tower, and alkaline absorption liquid is sprayed by spray pipe, SOx can be absorbed by fully contacting with alkaline absorption liquid, forming calcium sulfite, and air can be blown into absorption tower by air blowing device, which can promote calcium sulfite to be oxidized into calcium sulfate, so as to decompose industrial kiln tail gas SOx, but when using the device, the contact between tail gas and alkaline absorption liquid is often not sufficient, which leads to insufficient desulfurization of sulfide, in order to solve the above problems, the prior art often adopts the way of adding spiral blade in absorption tower to accelerate the air flow in absorption tower, so as to improve the absorption effect of alkaline absorption liquid, but when using the device, the consumption of alkaline absorption liquid is large, the use cost is high when using, which reduces the practicability of the device, and cannot meet the needs of users. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a kind of decomposition device for industrial kiln tail gas SOx, to improve the problem of large consumption of alkaline absorption liquid when using the decomposition device for industrial kiln tail gas SOx in prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of decomposition device for industrial kiln tail gas SOx, including base, the top right side of the base is fixedly connected with absorption tower, the upper side of the absorption tower is provided with tower cover, the inboard middle lower part of the absorption tower is fixedly connected with collecting hopper, the bottom of the collecting hopper is communicated with collecting pipe, the inboard middle upper part of the collecting pipe is fixedly connected with circular filter screen, the bottom end middle part of the circular filter screen is rotatably connected with transmission rod, the bottom end of the transmission rod is fixedly connected with impeller, the top end of the transmission rod penetrates circular filter screen and is fixedly connected with scraper, the inboard middle upper part of the collecting pipe is provided with discharge port, the inboard bottom of two discharge ports is fixedly connected with auxiliary filter screen, the outer side middle upper part of the collecting pipe is fixedly connected with collecting ring, the inboard bottom of the tower cover is fixedly connected with spray plate, the top left side of the base is fixedly connected with conveying assembly, the top of the base is provided with agitating mechanism, and the agitating mechanism is used to facilitate to speed up the decomposition efficiency in the device.

[0007] As further description of the above technical solution:

[0008] The agitating mechanism includes hollow block, the left side of the hollow block is fixedly connected with motor, the hollow block is fixedly connected at the top of tower cover, the output end of the motor penetrates hollow block and is fixedly connected with driving bevel gear, the inboard bottom of the hollow block is rotatably connected with hollow pipe, the inboard top of the hollow block is rotatably connected with rotating rod, the outer side top end of the hollow pipe and hollow pipe is fixedly connected with driven bevel gear, the bottom end of the hollow pipe penetrates hollow block and tower cover in sequence, the left and right side bottom end of the hollow pipe is fixedly connected with support plate, the adjacent side of two support plates is fixedly connected with a plurality of first stirring blades at equal intervals, the bottom end of the rotating rod penetrates hollow pipe, and the left and right side of the rotating rod is fixedly connected with a plurality of second stirring blades at equal intervals.

[0009] As further description of the above technical solution:

[0010] The conveying assembly includes water tank, the left side of the top of the base is fixedly connected with water tank, the left end of the collecting pipe penetrates absorption tower and is communicated with water tank, the top of the water tank is communicated with water pump, the top of the water pump is communicated with conveying pipe, the right end of the conveying pipe penetrates tower cover and is communicated with spray plate.

[0011] As further description of the above technical solution:

[0012] The front side of the collecting ring is provided with cleaning door, the front wall left end of the cleaning door is fixedly connected with first hinge, and the cleaning door is rotatably connected with collecting ring through the first hinge.

[0013] As further description of the above technical solution:

[0014] The front side middle lower part of the absorption tower is provided with a box door, the upper and lower sides of the left end of the front wall of the box door are fixedly connected with second hinges, and the box door is rotationally connected with the absorption tower through the second hinges.

[0015] As a further description of the above technical solution:

[0016] The right side middle upper part of the base is communicated with a demisting pipe, and the right side middle lower part of the base is communicated with an air inlet.

[0017] As a further description of the above technical solution:

[0018] The top of the tower cover is threadedly connected with screws around, and the bottom ends of the plurality of screws are penetrated through the tower cover and are threadedly connected with the absorption tower.

[0019] As a further description of the above technical solution:

[0020] The front side middle upper part of the base is fixedly connected with a controller, and the controller is electrically connected with the motor and the water pump.

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1、 the utility model discloses a spray plate sprays alkaline solution into the absorption tower, can absorb SOx and form the deposit, and then the alkaline solution falls into the collecting hopper and flows into the collecting pipe, at this time, the circular filter screen can filter the deposit, the alkaline solution falls into the water tank through the collecting pipe and drives the impeller to rotate, and the impeller drives the scraper to rotate through the transmission rod, so that the deposit on the circular filter screen can be scraped into the collecting ring through the discharge port, the recycling of the alkaline solution is realized, the practicability of the device is improved, and the needs of the user can be met.

[0023] 2、 the utility model discloses that the motor drives the driving bevel gear to rotate, since the driving bevel gear is engaged with the driven bevel gear on both sides, at this time, the two driven bevel gears can drive the hollow pipe and the rotating rod to rotate respectively, the hollow pipe rotates and drives the first stirring vane to rotate through the supporting plate, and the second stirring vane rotates when the rotating rod rotates, so that the air flow in the absorption tower can be accelerated, the reaction rate of the industrial kiln tail gas and the alkaline solution is improved, and the reaction rate of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A perspective view of the decomposition device for industrial kiln tail gas SOx is provided for the utility model;

[0025] Figure 2 An absorption tower structure sectional view of the decomposition device for industrial kiln tail gas SOx is provided for the utility model;

[0026] Figure 3A partial structure schematic view of the decomposition device for SOx in tail gas of industrial kiln is provided in the utility model.

[0027] Figure 4 A partial structure sectional view of the decomposition device for SOx in tail gas of industrial kiln is provided in the utility model.

[0028] Figure 5 For Figure 2 The enlarged view of A in the figure.

[0029] Legend:

[0030] 1, base; 2, stirring mechanism; 201, hollow block; 202, motor; 203, driving bevel gear; 204, hollow pipe; 205, rotating rod; 206, driven bevel gear; 207, support plate; 208, first stirring blade; 209, second stirring blade; 3, absorption tower; 4, tower cover; 5, collecting hopper; 6, collecting pipe; 7, circular filter screen; 8, transmission rod; 9, impeller; 10, scraper; 11, discharge port; 12, auxiliary filter screen; 13, collecting ring; 14, water pump; 15, conveying pipe; 16, spray plate; 17, cleaning door; 18, first hinge; 19, box door; 20, second hinge; 21, air inlet; 22, demisting pipe; 23, controller; 24, screw; 25, water tank. Specific embodiments

[0031] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] Refer to Figure 2 , Figure 3 and Figure 4The utility model provides an embodiment: a kind of decomposition device for industrial kiln tail gas SOx, including base 1, the top right side of base 1 is fixedly connected with absorption tower 3, the upper side of absorption tower 3 is provided with tower cover 4, the inboard middle lower part of absorption tower 3 is fixedly connected with collecting hopper 5, the bottom of collecting hopper 5 is communicated with collecting pipe 6, collecting pipe 6 and collecting hopper 5 can be collected to alkaline solution, the inboard middle upper part of collecting pipe 6 is fixedly connected with circular filter screen 7, circular filter screen 7 can filter down sediment, the bottom end middle part of circular filter screen 7 is rotatably connected with transmission rod 8, the bottom end of transmission rod 8 is fixedly connected with impeller 9, the top end of transmission rod 8 penetrates circular filter screen 7 and is fixedly connected with scraper 10, impeller 9 can be rotated by transmission rod 8 can drive scraper 10, the inboard middle upper part of collecting pipe 6 is equipped with discharge port 11, the inboard bottom of two discharge ports 11 is fixedly connected with auxiliary filter screen 12, the outer side middle upper part of collecting pipe 6 is fixedly connected with collection ring 13, the inboard bottom of tower cover 4 is fixedly connected with spray plate 16, spray plate 16 can spray alkaline solution, the top left side of base 1 is fixedly connected with conveying assembly, the top of base 1 is provided with agitating mechanism 2, agitating mechanism 2 is used to facilitate to accelerate the decomposition efficiency in the device, conveying assembly includes water tank 25, the top left side of base 1 is fixedly connected with water tank 25, the left end of collecting pipe 6 penetrates absorption tower 3 and is connected with water tank 25, water tank 25 can store alkaline solution, the top of water tank 25 is communicated with water pump 14, the top of water pump 14 is communicated with conveying pipe 15, the right end of conveying pipe 15 penetrates tower cover 4 and is connected with spray plate 16, water pump 14 can be conveyed to alkaline solution in spray plate 16;

[0033] Specifically, when using the device, water pump 14 can convey water in water tank 25 to spray plate 16 through conveying pipe 15, which can spray alkaline solution into absorption tower 3, when alkaline solution is mixed with tail gas discharged by industrial kiln, it can effectively absorb SOx gas therein and form corresponding precipitate, then alkaline solution falls together with precipitate into collecting hopper 5 and flows into water tank 25 through collecting pipe 6, realizing recycling, in this process, circular filter screen 7 can filter down precipitate, keeping alkaline solution clean, when alkaline solution passes through collecting pipe 6, impeller 9 will rotate, and the rotation of impeller 9 can drive scraper 10 to rotate through transmission rod 8, in the process of rotation, scraper 10 can scrape precipitate on circular filter screen 7 into collection ring 13 through discharge port 11, thereby ensuring the recycling of alkaline solution and improving the practicability of the device, which can meet the needs of users.

[0034] Refer to Figure 1 , Figure 2 and Figure 5, the stirring mechanism 2 comprises a hollow block 201, the left side of the hollow block 201 is fixedly connected with a motor 202, the hollow block 201 is fixedly connected at the top of the tower cover 4, the output end of the motor 202 penetrates through the hollow block 201 and is fixedly connected with a driving bevel gear 203, the motor 202 can drive the driving bevel gear 203 to rotate, the inner bottom of the hollow block 201 is rotatably connected with a hollow pipe 204, the inner top of the hollow block 201 is rotatably connected with a rotating rod 205, the outer top end of the hollow pipe 204 and the hollow pipe 204 are fixedly connected with a driven bevel gear 206, when the driving bevel gear 203 rotates, the two driven bevel gears 206 will drive the hollow pipe 204 and the rotating rod 205 to rotate respectively, the bottom end of the hollow pipe 204 penetrates through the hollow block 201 and the tower cover 4 in turn, the left and right bottom ends of the hollow pipe 204 are fixedly connected with a support plate 207, the adjacent side of the two support plates 207 is fixedly connected with a plurality of first stirring blades 208 at equal intervals, the support plate 207 can drive the first stirring blade 208 to rotate, the bottom end of the rotating rod 205 penetrates through the hollow pipe 204, the left and right sides of the rotating rod 205 are fixedly connected with a plurality of second stirring blades 209 at equal intervals, the rotating rod 205 will drive the second stirring blade 209 to rotate, the right middle upper part of the base 1 is communicated with a demisting pipe 22, the right middle lower part of the base 1 is communicated with an air inlet 21, the demisting pipe 22 can filter the alkaline solution mixed in the gas output by the device;

[0035] Specifically, when using the device, the motor 202 drives the driving bevel gear 203 to rotate, since the two sides of the driving bevel gear 203 are respectively meshed with the two driven bevel gears 206, when the driving bevel gear 203 rotates, the two driven bevel gears 206 will rotate at the same time, and drive the hollow pipe 204 and the rotating rod 205 to rotate, the rotary motion of the hollow pipe 204 can further drive the support plate 207 to rotate, during the rotation of the support plate 207, the accumulated precipitate on the inner wall of the absorption tower 3 can be effectively scraped clean, at the same time, the first stirring blade 208 also rotates with the rotation of the support plate 207, which enhances the stirring effect, and the rotation of the rotating rod 205 directly drives the second stirring blade 209 to rotate, through the cooperative work of the first stirring blade 208 and the second stirring blade 209, the air flow speed in the absorption tower 3 is significantly accelerated, which can effectively improve the reaction speed between the tail gas and the alkaline solution, and improve the reaction rate of the device.

[0036] Reference Figure 1 and Figure 3The front side of the collecting ring 13 is provided with a cleaning door 17, the left end of the front wall of the cleaning door 17 is fixedly connected with a first hinge 18, the cleaning door 17 is rotatably connected with the collecting ring 13 through the first hinge 18, the cleaning door 17 can be opened through the first hinge 18, the middle lower part of the front side of the absorption tower 3 is provided with a box door 19, the left end of the front wall of the box door 19 is fixedly connected with a second hinge 20 on the upper side and the lower side, the box door 19 is rotatably connected with the absorption tower 3 through the second hinge 20, and the internal device of the device can be maintained by opening the box door 19.

[0037] Specifically, the accumulated sediment in the collecting ring 13 can be cleaned by opening the cleaning door 17, and the box door 19 can be conveniently opened through the second hinge 20, so that the internal device of the device can be maintained.

[0038] Referring to Figure 1 The top of the tower cover 4 is threadedly connected with a plurality of screws 24, the bottom ends of the plurality of screws 24 are penetrated through the tower cover 4 and are threadedly connected with the absorption tower 3, the tower cover 4 can be conveniently disassembled by disassembling the plurality of screws 24, the middle upper part of the front side of the base 1 is fixedly connected with a controller 23, the controller 23 is electrically connected with the motor 202 and the water pump 14 respectively, and the controller 23 can control the working of the motor 202 and the water pump 14 respectively.

[0039] Specifically, the tower cover 4 can be conveniently disassembled by disassembling the plurality of screws 24, and the controller 23 can control the working of the motor 202 and the water pump 14 respectively, the model of the motor 202 is MS8012, and the model of the water pump 14 is QBY40.

[0040] Working principle: when the device is used, the water pump 14 can convey the water in the water tank 25 to the spray plate 16 through the conveying pipe 15, so that the alkaline solution can be sprayed into the absorption tower 3, the alkaline solution mixed with the industrial kiln tail gas can absorb SOx and form a precipitate, then the alkaline solution falls into the collecting hopper 5 and flows into the collecting pipe 6, at this time the circular filter screen 7 can filter the precipitate, the alkaline solution falls into the water tank 25 through the collecting pipe 6, and when the alkaline solution passes through the collecting pipe 6, the impeller 9 rotates, the impeller 9 can drive the scraper 10 to rotate through the transmission rod 8 when rotating, and the precipitate on the circular filter screen 7 can be scraped into the collecting ring 13 through the discharge port 11, so that the alkaline solution can be recycled;

[0041] And in use of the device, the motor 202 drives the driving bevel gear 203 to rotate, since the driving bevel gear 203 is engaged with the driven bevel gears 206 on both sides, at this time the two driven bevel gears 206 can drive the hollow pipe 204 and the rotating rod 205 to rotate respectively, the hollow pipe 204 rotates to drive the support plate 207 to rotate, the support plate 207 rotates to scrape off the precipitate on the inner wall of the absorption tower 3, and the first stirring blade 208 rotates with it, the rotating rod 205 rotates to drive the second stirring blade 209 to rotate, through the rotation of the first stirring blade 208 and the second stirring blade 209, the air flow in the absorption tower 3 can be accelerated, the reaction rate of the industrial kiln tail gas and the alkaline solution can be accelerated.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A decomposition device for SOx in exhaust gas of an industrial furnace, comprising a base (1), characterized in that: The top right side of the base (1) is fixedly connected with an absorption tower (3), the upper side of the absorption tower (3) is provided with a tower cover (4), the inner side of the middle lower part of the absorption tower (3) is fixedly connected with a collecting hopper (5), the bottom of the collecting hopper (5) is communicated with a collecting pipe (6), the inner side of the middle upper part of the collecting pipe (6) is fixedly connected with a circular filter screen (7), the bottom end of the middle part of the circular filter screen (7) is rotatably connected with a transmission rod (8), the bottom end of the transmission rod (8) is fixedly connected with an impeller (9), the top end of the transmission rod (8) penetrates through the circular filter screen (7) and is fixedly connected with a scraper (10), the inner side of the middle upper part of the collecting pipe (6) is provided with a discharge port (11) at the left end and the right end, the inner side of the bottom of the two discharge ports (11) is fixedly connected with an auxiliary filter screen (12), the outer side of the middle upper part of the collecting pipe (6) is fixedly connected with a collecting ring (13), the inner side of the bottom of the tower cover (4) is fixedly connected with a spray plate (16), the top left side of the base (1) is fixedly connected with a conveying assembly, the top of the base (1) is provided with an agitating mechanism (2), and the agitating mechanism (2) is used for facilitating and accelerating the decomposition efficiency in the device.

2. The decomposition device for SOx in the exhaust gas of an industrial furnace according to claim 1, characterized in that: The agitating mechanism (2) comprises a hollow block (201), the left side of the hollow block (201) is fixedly connected with a motor (202), the hollow block (201) is fixedly connected at the top of the tower cover (4), the output end of the motor (202) penetrates through the hollow block (201) and is fixedly connected with a driving bevel gear (203), the inner side of the bottom of the hollow block (201) is rotatably connected with a hollow pipe (204), the inner side of the top of the hollow block (201) is rotatably connected with a rotating rod (205), the outer side of the top of the hollow pipe (204) and the hollow pipe (204) is fixedly connected with a driven bevel gear (206), the bottom end of the hollow pipe (204) penetrates through the hollow block (201) and the tower cover (4) in sequence, the left side and the right side of the bottom of the hollow pipe (204) is fixedly connected with a supporting plate (207), the adjacent side of the two supporting plates (207) is fixedly connected with a plurality of first stirring blades (208) at equal intervals, the bottom end of the rotating rod (205) penetrates through the hollow pipe (204), and the left side and the right side of the rotating rod (205) is fixedly connected with a plurality of second stirring blades (209) at equal intervals.

3. The decomposition device for SOx in the exhaust gas of an industrial furnace according to claim 1, characterized in that: The conveying assembly comprises a water tank (25), the top left side of the base (1) is fixedly connected with the water tank (25), the left end of the collecting pipe (6) penetrates through the absorption tower (3) and is communicated with the water tank (25), the top of the water tank (25) is communicated with a water pump (14), the top of the water pump (14) is communicated with a conveying pipe (15), and the right end of the conveying pipe (15) penetrates through the tower cover (4) and is communicated with the spray plate (16).

4. The decomposition device for SOx in exhaust gas of industrial kiln according to claim 1, characterized in that: The front side of the collecting ring (13) is provided with a cleaning door (17), the front wall left end of the cleaning door (17) is fixedly connected with a first hinge (18), and the cleaning door (17) is rotatably connected with the collecting ring (13) through the first hinge (18).

5. The decomposition device for SOx in exhaust gas of industrial kiln according to claim 1, characterized in that: The lower part of the front side of the absorption tower (3) is provided with a box door (19), the upper and lower sides of the left end of the front wall of the box door (19) are fixedly connected with second hinges (20), and the box door (19) is rotationally connected with the absorption tower (3) through the second hinges (20).

6. The decomposition device for SOx in exhaust gas of industrial kiln according to claim 1, characterized in that: The right middle upper part of the base (1) is communicated with a demisting pipe (22), and the right middle lower part of the base (1) is communicated with an air inlet (21).

7. The decomposition device for SOx in exhaust gas of industrial kiln according to claim 1, characterized in that: The top of the tower cover (4) is threadedly connected with screws (24) around, and the bottom ends of the plurality of screws (24) penetrate the tower cover (4) and are threadedly connected with the absorption tower (3).

8. The decomposition device for SOx in exhaust gas of industrial kiln according to claim 1, characterized in that: The front middle upper part of the base (1) is fixedly connected with a controller (23), and the controller (23) is electrically connected with the motor (202) and the water pump (14).

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