阅读说明：本技术 一种煅烧针状焦用高效环保烟气处理装置及处理方法 (Efficient environment-friendly flue gas treatment device and treatment method for calcining needle coke ) 是由 宋振星 于 2021-10-24 设计创作，主要内容包括：本发明涉及烟气处理技术领域,具体为一种煅烧针状焦用高效环保烟气处理装置及处理方法,包括主箱体,主箱体侧面设置有余热回收机构,主箱体内顶壁设置有导料机构,余热回收机构包括回收箱体,回收箱体的顶部与底部分别固定连通有进气管与出气管,进气管与出气管位于回收箱体内部的一端之间通过接头固定连通有吸热管,回收箱体的两个内侧壁分别固定连通有进烟管与导烟管；本发明可以控制转动管进行前后方向上的匀速转动,进而扩大喷射管的覆盖范围,使喷淋液能够与主箱体内部所有的烟气进行充分接触,利用脱硫石膏浆液对烟气中的二氧化硫进行充分吸收,实现了转动过程中前后侧均匀喷淋的效果。(The invention relates to the technical field of flue gas treatment, in particular to a high-efficiency environment-friendly flue gas treatment device and a treatment method for calcining needle coke, which comprises a main box body, wherein a waste heat recovery mechanism is arranged on the side surface of the main box body, a guide mechanism is arranged on the top wall in the main box body, the waste heat recovery mechanism comprises a recovery box body, the top and the bottom of the recovery box body are respectively and fixedly communicated with an air inlet pipe and an air outlet pipe, a heat absorption pipe is fixedly communicated between the air inlet pipe and one end of the air outlet pipe positioned in the recovery box body through a connector, and two inner side walls of the recovery box body are respectively and fixedly communicated with a flue gas inlet pipe and a flue gas guide pipe; the invention can control the rotating pipe to rotate at a constant speed in the front-back direction, thereby expanding the coverage area of the injection pipe, leading the spray liquid to be capable of fully contacting with all the flue gas in the main box body, fully absorbing the sulfur dioxide in the flue gas by utilizing the desulfurized gypsum slurry and realizing the effect of uniformly spraying the front side and the back side in the rotating process.)

1. The efficient environment-friendly flue gas treatment device for calcining needle coke comprises a main box body (1), and is characterized in that a waste heat recovery mechanism (2) is arranged on the side surface of the main box body (1), and a material guide mechanism (3) is arranged on the inner top wall of the main box body (1);

the waste heat recovery mechanism (2) comprises a recovery box body (201), the top and the bottom of the recovery box body (201) are respectively and fixedly communicated with an air inlet pipe (202) and an air outlet pipe (203), one ends of the air inlet pipe (202) and the air outlet pipe (203) which are positioned inside the recovery box body (201) are respectively and fixedly communicated with a heat absorption pipe (204) through a joint, and two inner side walls of the recovery box body (201) are respectively and fixedly communicated with a smoke inlet pipe (205) and a smoke guide pipe (206);

the material guiding mechanism (3) comprises a material guiding box body (301), the inner top wall of the material guiding box body (301) is fixedly communicated with a feeding pipe (302), the inside of the material guiding box body (301) is movably connected with a material guiding roller (303), the outer surface of the material guiding roller (303) is fixedly provided with a material guiding component and a stirring component which are uniformly distributed, the material guiding component comprises two material guiding spirals (304), the stirring component comprises stirring rods (305) which are uniformly distributed on the outer surface of the material guiding roller (303), the inner bottom wall of the material guiding box body (301) is fixedly communicated with a connecting pipe (306), the bottom of the connecting pipe (306) is fixedly communicated with a mounting pipe (307), one end of the mounting pipe (307) is fixedly connected with the inner side wall of the main box body (1), the other end of the mounting pipe (307) is movably connected with a rotating pipe (308) through a joint, the inner bottom wall of the rotating pipe (308) is fixedly communicated with two groups of material spraying pipes (309), the two groups of material spraying pipes (309) are respectively positioned on the front side and the rear side of the bottom of the rotating pipe (308);

and a rotation control mechanism (4) for controlling the rotation of the rotating pipe (308) is arranged on one side of the material guide mechanism (3).

2. The efficient and environment-friendly flue gas treatment device for calcining needle coke according to claim 1, wherein the rotation control mechanism (4) comprises a control box body (401), the top of the control box body (401) is fixedly connected with the inner top wall of the main box body (1), a partition plate (402) is fixedly installed between the side surface of the control box body (401) and the inner side wall of the main box body (1), the side surface of the control box body (401) far away from the waste heat recovery mechanism (2) is fixedly provided with a driving motor (403) through a motor base, the inner side wall of the control box body (401) close to the driving motor (403) is movably connected with a first rotating shaft (404) and a second rotating shaft (405) through a bearing, the output end of the driving motor (404) is fixedly connected with the first rotating shaft (404), and a first rotating rod (406) and a second rotating rod (407) are movably connected between the two inner side walls of the control box body (401) through a bearing, the material guide roller (303) is fixedly arranged on the outer surface of one end of a first rotating rod (406) inside the material guide box body (301), a first transmission gear (408) and a first half gear (409) with teeth only arranged on a half circumference are fixedly arranged on the outer surface of the first rotating rod (406), a second transmission gear (410) and a second half gear (411) with teeth only arranged on a half circumference are fixedly arranged on the outer surface of a second rotating rod (407), a third transmission gear (412) and a fourth transmission gear (413) are fixedly connected to the outer surfaces of a first rotating shaft (404) and a second rotating shaft (405) respectively, the third transmission gear (412) is meshed with the first transmission gear (408) and the fourth transmission gear (413), and the bottom of the fourth transmission gear (413) is meshed with the second transmission gear (410).

3. The efficient and environment-friendly flue gas treatment device for calcining needle coke as claimed in claim 2, wherein a connecting rod (414) is movably connected to the inner side wall of the control box body (401) far away from the driving motor (403) in a penetrating manner, a fifth transmission gear (415) is fixedly installed on the outer surface of the connecting rod (414) at one end inside the control box body (401), the fifth transmission gear (415) is meshed with the first half gear (409) and the second half gear (411), and the connecting rod (414) is fixedly connected with one end rotating pipe (308) outside the control box body (401).

4. The efficient environment-friendly flue gas treatment device for calcining needle coke as claimed in claim 1, wherein a door (101) is arranged on the front surface of the main box body (1), one side of the door (101) is hinged with the front surface of the main box body (1) through a hinge, the other side of the door (101) is locked with the main box body (1) through a lock catch, a visible observation window (102) is arranged between the front surface and the back surface of the door (101), and a handle is fixedly arranged on the front surface of the door (101).

5. The efficient environment-friendly flue gas treatment device for calcining needle coke as claimed in claim 4, wherein a receiving groove (103) is fixedly installed on the inner bottom wall of the main box body (1), the inner side wall of the receiving groove (103) close to the waste heat recovery mechanism (2) is fixedly communicated with a discharging pipe (104), one end of the discharging pipe (104) far away from the receiving groove (103) penetrates through the inner side wall of the main box body (1) and extends to the outside of the main box body (1), a discharging pump is arranged at one end of the discharging pipe (104) located at the outside of the main box body (1), two sides of the discharging pump are fixedly connected with the side face of the main box body (1) through a support, and a smoke exhaust pipe (105) is fixedly communicated with the inner side wall of the main box body (1) far away from the waste heat recovery mechanism (2).

6. The efficient and environment-friendly flue gas treatment device for calcining needle coke as claimed in claim 1, wherein reinforcing plates (207) are fixedly installed between inner side walls of the recovery box body (201) and are uniformly distributed, the reinforcing plates (207) are used for fixing the heat absorption pipes (204), through holes (208) are uniformly distributed between the top surface and the bottom surface of the reinforcing plates (207), and flue gas flows from one side of the reinforcing plates (207) to the other side through the through holes (208).

7. The high-efficiency environment-friendly flue gas treatment method for calcining needle coke is characterized by comprising the following steps of:

the method comprises the following steps: inputting flue gas into the recovery box body (201) through a flue gas inlet pipe (205), enabling air for waste heat recovery to enter a heat absorption pipe (204) through an air inlet pipe (202), performing heat transfer through the heat absorption pipe (204), and enabling the flue gas after heat transfer to enter the main box body (1) through a flue gas guide pipe (206);

step two: waste desulfurized gypsum is made into slurry and is guided into the interior of a material guide box body (301) through a feeding pipe (302), a first rotating rod (406) drives a material guide roller (303) to rotate clockwise in the interior of the material guide box body (301), the material is conveyed from right to left by a material guide spiral (304), the conveyed material is stirred by a stirring rod (305), the material enters a rotating pipe (308) through a connecting pipe (306) and a mounting pipe (307) when being conveyed to the leftmost side, the rotating pipe (308) is driven to rotate in the front-back direction through a rotation control mechanism (4), and the material in the rotating pipe (308) is sprayed out through two groups of material spraying pipes (309) in the rotating process to absorb sulfur in flue gas;

step three: after the flue gas treatment is finished, the flue gas is discharged out of the main box body (1) through the smoke discharge pipe (105), and materials contained in the material receiving groove (103) are discharged through the discharge pump and the discharge pipe (104).

8. The method for treating high-efficiency and environment-friendly flue gas for calcining needle coke as claimed in claim 7, wherein the specific process of heat transfer in the step one comprises: the flue gas flows from top to bottom through the through hole (208) in the recovery box body (201) until the flue gas flows to the smoke guide pipe (206) and flows to the inside of the main box body (1) through the smoke guide pipe (206), air for waste heat recovery enters the heat absorption pipe (204) through the air inlet pipe (202), the heat of the flue gas in the recovery box body (201) is transferred to the air in the heat absorption pipe (204) through the heat absorption pipe (204), the temperature of the air in the heat absorption pipe (204) is increased, and the heated air is discharged out of the recovery box body (201) through the air outlet pipe (203).

9. The method for treating the high-efficiency environment-friendly flue gas for calcining the needle coke according to claim 7, wherein the specific process that the rotation control mechanism (4) drives the rotating pipe (308) to rotate in the second step comprises the following steps: the driving motor (403) is started to drive the first rotating shaft (404) to rotate anticlockwise, the first rotating rod (406) and the second rotating rod (407) are driven to rotate clockwise and anticlockwise respectively through the third transmission gear (412) and the fourth transmission gear (413), when the first half gear (409) is in contact with the fifth transmission gear (415), the rotating pipe (308) is driven to rotate anticlockwise through the fifth transmission gear (415), when the second half gear (411) is in contact with the fifth transmission gear (415), the rotating pipe (308) is driven to rotate clockwise through the fifth transmission gear (415), and the first half gear (409) and the second half gear (411) are in contact with the fifth transmission gear (415) alternately, so that the rotating pipe (308) rotates back and forth in a reciprocating mode.

Technical Field

The invention relates to the technical field of flue gas treatment, in particular to a high-efficiency environment-friendly flue gas treatment device and a treatment method for calcining needle coke.

Background

The needle coke is a high-quality variety which is vigorously developed in carbon materials, the appearance of the needle coke is a porous solid with silver gray and metallic luster, the structure of the needle coke has obvious flowing textures, the holes are large and few and are slightly oval, the particles have larger length-width ratio, such as fibrous or needle-shaped texture trend, and have lubricating feeling when touching, and the needle coke is a raw material for producing high-end carbon products such as ultrahigh-power electrodes, special carbon materials, carbon fibers and composite materials thereof;

the needle coke calcination can generate a large amount of flue gas with harmful substances, the flue gas can be discharged after being treated, the existing flue gas treatment device for needle coke calcination usually adopts desulfurized gypsum to prepare slurry to spray the flue gas, and the desulfurized gypsum slurry is used for absorbing sulfur in the flue gas;

the invention patent with publication number CN106621663A discloses a boiler flue gas treatment device and a method, the boiler flue gas treatment device has the advantages of simple system, less equipment, small occupied area, low investment and operation cost and the like, the adaptability of different industrial and mining coal types is solved, and the purposes of energy conservation, emission reduction and air purification are achieved; however, although the boiler flue gas treatment device is provided with the double-layer spray tower for spraying the flue gas, the spraying angles of the two spraying layers are fixed and the spraying layers are sprayed from top to bottom, so that the coverage of the spraying liquid is small, the contact between the spraying liquid and the flue gas is insufficient, and the absorption effect of the spraying liquid on sulfur dioxide in the flue gas is influenced;

in view of the above technical problems, the present application proposes a solution.

Disclosure of Invention

The invention aims to solve the problems of poor desulfurization effect caused by fixed spray liquid injection angle and small injection range when the conventional flue gas treatment device performs spray desulfurization treatment on flue gas, and provides an efficient environment-friendly flue gas treatment device and a treatment method for calcining needle coke.

The purpose of the invention can be realized by the following technical scheme:

a high-efficiency environment-friendly flue gas treatment device for calcining needle coke comprises a main box body, wherein a waste heat recovery mechanism is arranged on the side surface of the main box body, and a material guide mechanism is arranged on the inner top wall of the main box body;

the waste heat recovery mechanism comprises a recovery box body, the top and the bottom of the recovery box body are respectively and fixedly communicated with an air inlet pipe and an air outlet pipe, a heat absorption pipe is fixedly communicated between the air inlet pipe and one end of the air outlet pipe positioned in the recovery box body through a joint, and two inner side walls of the recovery box body are respectively and fixedly communicated with a smoke inlet pipe and a smoke guide pipe;

the material guiding mechanism comprises a material guiding box body, the inner top wall of the material guiding box body is fixedly communicated with a material inlet pipe, a material guiding roller is movably connected inside the material guiding box body, a material guiding part and a stirring part which are uniformly distributed are fixedly arranged on the outer surface of the material guiding roller, the material guiding part comprises two material guiding spirals, the stirring part comprises stirring rods which are uniformly distributed on the outer surface of the material guiding roller, a connecting pipe is fixedly communicated with the inner bottom wall of the material guiding box body, an installation pipe is fixedly communicated with the bottom of the connecting pipe, one end of the installation pipe is fixedly connected with the inner side wall of the main box body, the other end of the installation pipe is movably connected with a rotating pipe through a connector, two groups of material spraying pipes are fixedly communicated with the inner bottom wall of the rotating pipe, and the two groups of material spraying pipes are respectively positioned on the front side and the rear side of the bottom of the rotating pipe;

and a rotation control mechanism for controlling the rotation of the rotating pipe is arranged on one side of the material guide mechanism.

As a preferred embodiment of the present invention, the rotation control mechanism includes a control box, the top of the control box is fixedly connected to the inner top wall of the main box, a partition is fixedly installed between the side surface of the control box and the inner side wall of the main box, the side surface of the control box far away from the waste heat recovery mechanism is fixedly installed with a driving motor through a motor base, the inner side wall of the control box near the driving motor is movably connected with a first rotating shaft and a second rotating shaft through a bearing, the output end of the driving motor is fixedly connected with the first rotating shaft, a first rotating rod and a second rotating rod are movably connected between the two inner side walls of the control box through a bearing, the material guiding roller is fixedly installed on the outer surface of the first rotating rod at one end inside the material guiding box, the outer surface of the first rotating rod is fixedly installed with a first transmission gear and a first half gear with teeth only on half circumference, the outer surface of the second rotating rod is fixedly provided with a second transmission gear and a second half gear only provided with teeth on a half circumference, the outer surfaces of the first rotating shaft and the second rotating shaft are respectively and fixedly connected with a third transmission gear and a fourth transmission gear, the third transmission gear is meshed with the first transmission gear and the fourth transmission gear, and the bottom of the fourth transmission gear is meshed with the second transmission gear.

As a preferred embodiment of the present invention, a connecting rod penetrates through and is movably connected to an inner side wall of the control box body, the outer surface of one end of the connecting rod, which is located inside the control box body, is fixedly provided with a fifth transmission gear, the fifth transmission gear is meshed with the first half gear and the second half gear, and one end of the connecting rod, which is located outside the control box body, is fixedly connected to a rotating pipe.

As a preferred embodiment of the present invention, a door is disposed on the front surface of the main box, one side of the door is hinged to the front surface of the main box through a hinge, the other side of the door is locked to the main box through a lock catch, a visual observation window is disposed between the front surface and the back surface of the door, and a handle is fixedly mounted on the front surface of the door.

As a preferred embodiment of the invention, a material receiving groove is fixedly installed on the inner bottom wall of the main tank body, a material discharging pipe is fixedly communicated with the inner side wall of the material receiving groove close to the waste heat recovery mechanism, one end of the material discharging pipe, far away from the material receiving groove, penetrates through the inner side wall of the main tank body and extends to the outside of the main tank body, a material discharging pump is arranged at one end of the material discharging pipe, located at the outside of the main tank body, two sides of the material discharging pump are fixedly connected with the side face of the main tank body through supports, and a smoke discharging pipe is fixedly communicated with the inner side wall of the main tank body, far away from the waste heat recovery mechanism.

As a preferred embodiment of the present invention, evenly distributed reinforcing plates are fixedly installed between the inner side walls of the recovery box body, the reinforcing plates are used for fixing the heat absorption pipe, evenly distributed through holes are formed between the top surface and the bottom surface of the reinforcing plates, and the flue gas flows from one side of the reinforcing plates to the other side through the through holes.

A high-efficiency environment-friendly flue gas treatment method for calcining needle coke comprises the following steps:

the method comprises the following steps: inputting the smoke into the recycling box body through the smoke inlet pipe, enabling the air for waste heat recycling to enter the heat absorbing pipe through the air inlet pipe, transferring heat through the heat absorbing pipe, and enabling the smoke after heat transfer to enter the main box body through the smoke guide pipe;

step two: waste desulfurized gypsum is made into slurry and is guided into the interior of the material guide box body through the feeding pipe, the first rotating rod drives the material guide roller to rotate clockwise in the interior of the material guide box body, the material is conveyed from right to left by utilizing the material guide screw, the conveyed material is stirred through the stirring rod at the same time, the material enters the rotating pipe through the connecting pipe and the mounting pipe when being conveyed to the leftmost side, the rotating pipe is driven to rotate in the front-back direction through the rotation control mechanism, and the material in the rotating pipe is sprayed out through the two groups of material spraying pipes in the rotating process to absorb sulfur in the flue gas;

step three: after the flue gas treatment is finished, the flue gas is discharged out of the main box body through the smoke discharge pipe, and materials contained in the material receiving groove are discharged through the discharge pump and the discharge pipe.

As a preferred embodiment of the present invention, the specific process of heat transfer in the first step includes: the flue gas flows through the through hole from top to bottom inside the recovery box body until the flue gas flows to the smoke guide pipe and flows to the inside of the main box body through the smoke guide pipe, air for waste heat recovery enters the heat absorption pipe through the air inlet pipe, flue gas heat in the recovery box body is transferred to the air inside the heat absorption pipe through the heat absorption pipe, the temperature of the air inside the heat absorption pipe is increased, and the air after temperature rise is discharged out of the recovery box body through the air outlet pipe.

As a preferred embodiment of the present invention, the specific process of the step two in which the rotation control mechanism drives the rotation tube to rotate includes: the driving motor is started to drive the first rotating shaft to rotate anticlockwise, the first rotating rod and the second rotating rod are driven to rotate clockwise and anticlockwise respectively through the third transmission gear and the fourth transmission gear, when the first half gear is in contact with the fifth transmission gear, the rotating pipe is driven to rotate anticlockwise through the fifth transmission gear, when the second half gear is in contact with the fifth transmission gear, the rotating pipe is driven to rotate clockwise through the fifth transmission gear, and the first half gear and the second half gear are in contact with the fifth transmission gear alternately, so that the rotating pipe can rotate back and forth in a reciprocating mode.

Compared with the prior art, the invention has the beneficial effects that:

1. the rotary control mechanism can control the rotary pipes to rotate at a constant speed in the front-back direction, when the rotary pipes rotate, the spray pipes on the two sides of the bottom of the rotary pipes spray out spray liquid, so that the coverage area of the spray pipes is enlarged, the spray liquid can be in full contact with all smoke inside the main box body, sulfur dioxide in the smoke is fully absorbed by desulfurized gypsum slurry, and therefore the treatment effect on the smoke is improved;

2. the waste heat recovery mechanism can recover waste heat of the flue gas before desulfurization treatment, external air enters the heat absorption pipe to absorb heat of the flue gas, the heat absorption pipe is a serpentine pipeline made of aluminum alloy, the aluminum alloy ensures heat transfer efficiency, meanwhile, the serpentine pipeline can prolong the time of gas in the heat absorption pipe flowing through the recovery box body, the flue gas and the air in the heat absorption pipe are subjected to full heat exchange, and then the air and the flue gas are respectively discharged, so that the waste heat recovery efficiency is ensured;

3. the material guide mechanism through setting up can carry out the thick liquid with the material from the inlet pipe leading-in to the rotating tube and spray, and the guide in-process stirs the thick liquid through the puddler, and stirring part has guaranteed guide and stirring effect with the setting of guide part in turn, and the guide roller is followed first bull stick and is rotated in step simultaneously, and first bull stick is driven by driving motor, consequently need not add the motor for the guide mechanism, has reduced the use quantity of motor, has reduced the manufacturing cost of equipment.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a front sectional view of the structure of the main case of the present invention;

FIG. 2 is a front sectional view of the waste heat recovery mechanism of the present invention;

FIG. 3 is a front sectional view of the structure of the reinforcing plate of the present invention;

FIG. 4 is a front sectional view of the material guiding mechanism of the present invention;

FIG. 5 is a left side sectional view of a rotary tube according to an embodiment of the present invention;

FIG. 6 is a front cross-sectional view of the rotary control mechanism of the present invention;

FIG. 7 is a left side elevational view of the first half gear, second half gear and fifth transfer gear of the present invention;

FIG. 8 is a front view of the structure of the main case of the present invention;

fig. 9 is a left side sectional view showing the structure of a rotary tube in the second embodiment of the present invention.

In the figure: 1. a main box body; 101. a box door; 102. a visual observation window; 103. a material receiving groove; 104. a discharge pipe; 105. a smoke exhaust pipe; 2. a waste heat recovery mechanism; 201. a recovery box body; 202. an air inlet pipe; 203. an air outlet pipe; 204. a heat absorbing tube; 205. a smoke inlet pipe; 206. a smoke guide pipe; 207. a reinforcing plate; 208. a through hole; 3. a material guiding mechanism; 301. a material guiding box body; 302. a feed pipe; 303. a material guide roller; 304. the material guiding is spiral; 305. a stirring rod; 306. a connecting pipe; 307. installing a pipe; 308. rotating the tube; 309. a material spraying pipe; 4. a rotation control mechanism; 401. a control box body; 402. a partition plate; 403. a drive motor; 404. a first rotating shaft; 405. a second rotating shaft; 406. a first rotating lever; 407. a second rotating rod; 408. a first drive gear; 409. a first half gear; 410. a second transmission gear; 411. a second half gear; 412. a third transmission gear; 413. a fourth transmission gear; 414. a connecting rod; 415. and a fifth transmission gear.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-8, a high-efficiency environment-friendly flue gas treatment device for calcining needle coke, comprising a main box body 1, a box door 101 arranged on the front surface of the main box body 1, one side of the box door 101 hinged with the front surface of the main box body 1 through a hinge, the other side of the box door 101 locked with the main box body 1 through a lock catch, a visual observation window 102 arranged between the front surface and the back surface of the box door 101, wherein the spraying effect of spraying liquid can be observed through the visual observation window 102 in the flue gas treatment process, a handle is fixedly arranged on the front surface of the box door 101, the lock catch is unlocked during equipment maintenance, the box door 101 is opened by holding the handle with hands, so as to maintain the internal parts of the main box body 1, a controller is arranged on the front surface of the main box body 1, the output end of the controller is electrically connected with the input end of a driving motor 403, a waste heat recovery mechanism 2 is arranged on the side surface of the main box body 1, the waste heat recovery mechanism 2 comprises a recovery box body 201, the side surface of the recovery box body 201 is fixedly connected with the side surface of the main box body 1, the top and the bottom of the recovery box body 201 are respectively and fixedly communicated with an air inlet pipe 202 and an air outlet pipe 203, the air inlet pipe 202 and the air outlet pipe 203 are positioned at one end inside the recovery box body 201 and are fixedly communicated with a heat absorbing pipe 204 through a joint, the heat absorbing pipe 204 is a serpentine pipeline made of aluminum alloy, the heat in the flue gas is rapidly conducted to the air inside the heat absorbing pipe 204 by utilizing the good heat absorbing performance of the aluminum alloy, the serpentine pipeline can prolong the time of the air in the heat absorbing pipe 204 flowing through the recovery box body 201, so that the air inside the heat absorbing pipe 204 can fully absorb the heat of the flue gas, the full conversion of the heat of the flue gas is realized, one end of the air outlet pipe 203 positioned outside the recovery box body 201 is communicated with external power generation equipment, the air discharged by the air outlet pipe 203 is used for steam power generation, the inner side wall of the recovery box body 201 far away from the main box body 1 is fixedly communicated with an air inlet pipe 205, the inner side wall of the recovery box body 201 close to the main box body 1 is fixedly communicated with a smoke guide pipe 206, one end of the smoke guide pipe 206 far away from the recovery box body 201 penetrates through the inner side wall of the main box body 1 and extends to the inside of the main box body 1, the air inlet pipe 202 and the air outlet pipe 203 are respectively arranged on the upper side and the lower side of the recovery box body 201, the smoke inlet pipe 205 and the smoke guide pipe 206 are respectively arranged on the left side and the right side of the recovery box body 201, a reinforcing plate 207 which is uniformly distributed is fixedly arranged between the inner side wall of the recovery box body 201, the reinforcing plate 207 is used for fixing the heat absorption pipe 204, through holes 208 which are uniformly distributed are formed between the top surface and the bottom surface of the reinforcing plate 207, and smoke flows to the other side from one side of the reinforcing plate 207 through the through holes 208.

The inner bottom wall of the main box body 1 is fixedly provided with a receiving groove 103, the front, back and left side surfaces of the receiving groove 103 are fixedly connected with the inner side wall of the main box body 1 to ensure that desulfurized gypsum slurry sprayed from the rotating pipe 308 can enter the receiving groove 103 to be recovered, the inner side wall of the receiving groove 103 close to the waste heat recovery mechanism 2 is fixedly communicated with a discharge pipe 104, one end of the discharge pipe 104 far away from the receiving groove 103 penetrates through the inner side wall of the main box body 1 and extends to the outside of the main box body 1, one end of the discharge pipe 104 positioned at the outside of the main box body 1 is provided with a discharge pump and an electromagnetic valve, the material discharge that connects the flourishing material of silo 103 in will connecing through the solenoid valve of opening discharge pump and discharging pipe 104 after the flue gas is handled and is retrieved, and the both sides of discharge pump all are through support and main box 1 side fixed connection, and the fixed intercommunication of inside wall that waste heat recovery mechanism 2 was kept away from to main box 1 has smoke pipe 105, and the flue gas of accomplishing desulfurization is through smoke pipe 105 discharge main box 1.

Top wall is provided with rotation control mechanism 4 in the main tank 1, rotation control mechanism 4 includes control box 401, top wall fixed connection in control box 401 top and the main tank 1, fixed mounting has baffle 402 between control box 401 side and the main tank 1 inside wall, the side that waste heat recovery mechanism 2 is kept away from to control box 401 has driving motor 403 through motor cabinet fixed mounting, the inside wall that control box 401 is close to driving motor 403 has first pivot 404 and second pivot 405 through bearing swing joint, driving motor 403 output and first pivot 404 fixed connection, driving motor 403 is used for driving first pivot 404 to rotate, drive second pivot 405 through third drive gear 412 and fourth 413 drive gear and rotate in step simultaneously, there are first bull stick 406 and second bull stick through bearing swing joint between two inside walls of control box 401, the surface fixed mounting of first bull stick 406 has first drive gear 408 and first pinion 409 (half-gear is gear wheel 407) Only half of the periphery of the second rotating rod 407 is provided with teeth), the outer surface of the second rotating rod 407 is fixedly provided with a second transmission gear 410 and a second half gear 411 (the half gear is provided with teeth only at half of the periphery of the gear), the outer surfaces of the first rotating shaft 404 and the second rotating shaft 405 are respectively fixedly connected with a third transmission gear 412 and a fourth transmission gear 413, the third transmission gear 412 is meshed with the first transmission gear 408 and the fourth transmission gear 413, the bottom of the fourth transmission gear 413 is meshed with the second transmission gear 410, the third transmission gear 412 is meshed with the first transmission gear 408 and the second transmission gear 410, the inner side wall of the control box 401 far away from the driving motor 403 is movably connected with a connecting rod 414 in a penetrating way, the outer surface of one end of the connecting rod 414 positioned in the control box 401 is fixedly provided with a fifth transmission gear 415, the fifth transmission gear 415 is meshed with the first half gear 409 and the second half gear 411, the driving motor 403 drives the rotating shaft to rotate anticlockwise, the first rotating rod 406 and the second rotating rod 407 are driven to rotate clockwise and anticlockwise respectively through the third transmission gear 412 and the fourth transmission gear 413, when the first half gear 409 contacts with the fifth transmission gear 415, the rotating pipe 308 is driven to rotate anticlockwise through the fifth transmission gear 415, when the second half gear 411 contacts with the fifth transmission gear 415, the rotating pipe 308 is driven to rotate clockwise through the fifth transmission gear 415, the first half gear 409 and the second half gear 411 alternately contact with the fifth transmission gear 415, so that the rotating pipe 308 rotates back and forth in a reciprocating manner, the rotating pipe 308 rotates synchronously, the spraying range of the spraying pipe at the bottom of the rotating pipe 308 on slurry is expanded, and the flue gas desulfurization treatment effect is improved.

The inner side wall of the main box body 1 is provided with a material guide mechanism 3, the material guide mechanism 3 comprises a material guide box body 301, one side of the material guide box body 301 is fixedly connected with the inner side wall of the main box body 1, the other side of the material guide box body 301 is fixedly connected with the side surface of the control box body 401, the inner top wall of the material guide box body 301 is fixedly communicated with a feeding pipe 302 for feeding, the feeding pipe 302 can also be communicated with external water storage equipment, after the flue gas treatment is finished, cleaning liquid in the external water storage equipment is guided into a rotating pipe 308 to spray and clean parts in the main box body 1, the top of the feeding pipe 302 penetrates through the inner top wall of the main box body 1 and extends to the outside of the main box body 1, one end of a first rotating rod 406, which is far away from a driving motor 403, penetrates through one inner side wall of the material guide box body 301 and is movably connected with the other inner side wall of the material guide box body 301 through a bearing, and a material guide roller 303 is fixedly installed on the outer surface of the first rotating rod 406, which is positioned at one end in the material guide box body 301, the first rotating rod 406 is driven by the driving motor 403, while the first rotating rod 406 drives the gear-lacking part to rotate, the material guiding roller 303 also synchronously rotates along with the first rotating rod 406, so that the material guiding roller 303 of the material guiding mechanism 3 does not need to be separately driven by a motor, the production cost of the equipment is reduced, the outer surface of the material guiding roller 303 is fixedly provided with a material guiding part and a stirring part which are uniformly distributed, the material guiding part comprises two material guiding spirals 304, when the material guiding roller 303 rotates, the material is conveyed from right to left by the material guiding spirals 304, the stirring part comprises stirring rods 305 which are uniformly distributed on the outer surface of the material guiding roller 303, the slurry is stirred by the stirring rods 305 during the conveying process, the mixing effect of the slurry is better, the material guiding part and the stirring part are alternately arranged on the outer surface of the material guiding roller 303, the inner bottom wall of the material guiding box body 301 is fixedly communicated with a connecting pipe 306, the middle part of the connecting pipe 306 is provided with a material pump and an electromagnetic valve, the material pump is used for pumping slurry on the left side of the material guide box body 301 into the rotating pipe 308, the bottom of the connecting pipe 306 is fixedly communicated with an installation pipe 307, one end of the installation pipe 307 is fixedly connected with the inner side wall of the main box body 1, the other end of the installation pipe 307 is movably connected with the rotating pipe 308 through a joint, one end of the rotating pipe 308 far away from the installation pipe 307 is sealed, one sealed end of the rotating pipe 308 is fixedly connected with one end of the connecting rod 414 positioned outside the control box body 401, drive the rotating tube 308 through connecting rod 414 and rotate and spray, the fixed intercommunication evenly distributed of bottom wall spouts material pipe 309 in the rotating tube 308, the desulfurization gypsum thick liquid in the rotating tube 308 spouts through rotatory spout material pipe 309, the surface swing joint at rotating tube 308 middle part has the stop collar, the bottom surface fixed connection of link and guide box 301 is passed through at the stop collar top, the stop collar is spacing to the rotating tube 308 at the middle part of rotating tube 308, stability when improving rotating tube 308 and rotating.

Example 2

As shown in fig. 9, two groups of material spraying pipes 309 are arranged, the two groups of material spraying pipes 309 are respectively arranged on the front side and the rear side of the bottom of the rotating pipe 308, an included angle formed by the two groups of material spraying pipes 309 is α, and a value range of α is thirty degrees to forty-five degrees, preferably thirty degrees; the arrangement of the two groups of material spraying pipes 309 in tandem can further improve the coverage of the slurry sprayed by the material spraying pipes 309, for example, when the clockwise and counterclockwise rotation angles of the rotating pipe 308 are both thirty degrees, a group of material spraying pipes is arranged at the bottom of the rotating pipe 308, the spraying coverage angle formed by the material spraying pipes is sixty degrees, and when the material spraying pipes rotate to the front side, the spraying effect of the rear side area is poor, and the uniform spraying effect of the front side spraying liquid and the rear side spraying liquid cannot be realized in the rotating process; two groups of injection pipes are arranged in tandem, when the alpha value is thirty degrees, the coverage angle of spraying by combining the two groups of injection pipes is ninety degrees, the front side area and the rear side area are respectively responsible for spraying by the front side injection pipe and the rear side injection pipe, and the effect of uniformly spraying the front side and the rear side in the rotating process is realized while the spraying coverage angle is improved.

Example 3

The high-efficiency environment-friendly flue gas treatment method for calcining needle coke comprises the following steps:

the method comprises the following steps: inputting flue gas into the recovery box body 201 through the flue gas inlet pipe 205, wherein the flue gas flows through the through hole 208 from top to bottom in the recovery box body 201 until the flue gas flows to the smoke guide pipe 206 and flows into the main box body 1 through the smoke guide pipe 206, air for waste heat recovery enters the heat absorption pipe 204 through the air inlet pipe 202, the heat of the flue gas in the recovery box body 201 is transferred to the air in the heat absorption pipe 204 through the heat absorption pipe 204, so that the temperature of the air in the heat absorption pipe 204 is raised, and the raised air is discharged out of the recovery box body 201 through the air outlet pipe 203;

step two: starting a driving motor 403 to drive a first rotating shaft 404 to rotate anticlockwise, driving a first rotating rod 406 and a second rotating rod 407 to rotate clockwise and anticlockwise respectively through a third transmission gear 412 and a fourth transmission gear 413, driving a rotating pipe 308 to rotate anticlockwise through a fifth transmission gear 415 when a first half gear 409 contacts with the fifth transmission gear 415, driving the rotating pipe 308 to rotate clockwise through the fifth transmission gear 415 when a second half gear 411 contacts with the fifth transmission gear 415, and alternately contacting with the fifth transmission gear 415 through the first half gear 409 and the second half gear 411 to enable the rotating pipe 308 to rotate back and forth;

step three: waste desulfurized gypsum is made into slurry and is guided into the interior of the material guide box body 301 through the feeding pipe 302, the first rotating rod 406 drives the material guide roller 303 to rotate clockwise in the interior of the material guide box body 301, the material is conveyed from right to left by the material guide screw 304, the conveyed material is stirred by the stirring rod 305 at the same time, the material enters the rotating pipe 308 through the connecting pipe 306 and the mounting pipe 307 when being conveyed to the leftmost side, the material in the rotating pipe 308 is sprayed by the material spraying pipe 309 to absorb sulfur in the flue gas in the main box body 1, and the covering angle of material spraying is enlarged through the rotating pipes 308 which rotate forwards and backwards, so that the material is in full contact with the flue gas;

step four: after the flue gas treatment is finished, the flue gas is discharged out of the main box body 1 through the smoke discharge pipe 105, and the materials contained in the material receiving groove 103 are discharged through the discharge pump and the discharge pipe 104.

When the invention is used, flue gas is input into the recovery box body 201 through the smoke inlet pipe 205, waste heat recovery is carried out on the flue gas through the heat absorbing pipe 204 in the recovery box body 201, the flue gas after waste heat recovery enters the main box body 1 through the smoke guide pipe 206, waste desulfurized gypsum is made into slurry and is guided into the material guide box body 301 through the feed pipe 302, the controller controls the driving motor 403 to be started, the first rotating rod 406 and the second rotating rod 407 are driven to respectively rotate anticlockwise and clockwise, the first half gear 409 and the second half gear 411 are matched to drive the connecting rod 414 to rotate back and forth in a reciprocating manner, the first rotating rod 406 drives the material guide roller 303 to rotate, the slurry is guided and stirred by the material guide screw 304 and the stirring rod 305, finally the slurry is sprayed out through the rotating injection pipe at the bottom of the rotating pipe 308 to fully absorb sulfur dioxide in the flue gas, the driving motor 403 is closed after the flue gas treatment is finished, and opening the electromagnetic valve of the discharge pump and the discharge pipe 104 to discharge the slurry contained in the receiving groove 103, thereby completing the whole flue gas treatment process.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.