Waste heat recovery, desulfurization and dust removal equipment

By utilizing the centrifugal force of a motor to spray the chemical solution and the suction fan to quickly exhaust the air in the desulfurization and dust removal equipment, combined with multi-layer filters and heating strips, the problem of insufficient contact between flue gas and chemical solution is solved, achieving efficient removal of harmful substances and extending the life of the filter screen.

CN223901554UActive Publication Date: 2026-02-13SHANDONG RUIJIA VENTILATION ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202520348660.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-02-13
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

When existing desulfurization and dust removal equipment is in operation, the flue gas cannot fully react with the desulfurization solution, resulting in the failure to effectively remove harmful substances and causing environmental pollution.

Method used

A waste heat recovery desulfurization and dust removal device was designed. It uses the centrifugal force generated by the motor to spray the liquid medicine and combine it with the flue gas. Combined with the suction fan, the reaction gas is quickly discharged. The contact area and reaction efficiency are improved by using multi-layer filter screens and heating strips.

Benefits of technology

It achieves full reaction between flue gas and liquid chemicals, improves the removal effect of harmful substances, enhances the desulfurization and dust removal capabilities of the equipment, extends the service life of the filter screen, and controls the amount of flue gas through segmented emission control.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of desulfurization and dust removal, and particularly relates to waste heat recovery desulfurization and dust removal equipment which comprises a first box body, the top of the first box body is fixedly connected with a first motor; the output end of the first motor is fixedly connected with a first rotating shaft; a first bevel gear is fixedly connected to the end of the side, away from the first motor, of the first rotating shaft. The middle part of the first box body is rotationally connected with a hollow rotating shaft; the top of the hollow rotating shaft is fixedly connected with a liquid injection port; the middle part of the hollow rotating shaft is fixedly connected with a second bevel gear; the second bevel gear is in meshed connection with the first bevel gear; by arranging the first motor and utilizing centrifugal force generated by rotation of the motor, liquid medicine in the liquid storage box is sprayed into the first box body, so that the liquid medicine is fully combined and reacted with smoke in the first box body, harmful substances in the smoke are removed, and the air suction fan can be used for sucking air after the smoke in the first box body and the liquid medicine are neutralized and reacted. And when the emission standard is reached, the gas in the first box body is rapidly pumped out.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to desulfurization dust removal technical field, specifically waste heat recovery desulfurization dust removal equipment. BACKGROUND

[0002] Waste heat recovery refers to the technology of recycling waste heat generated in industrial production process, for example, in steel, chemical, cement and other industries, many production links will generate a large amount of high-temperature waste gas, these waste gas contains considerable heat energy, for example, blast furnace gas in steel industry, its temperature is high, through waste heat boiler and other equipment, its heat energy can be recovered, used to generate steam, and the steam can be used to drive steam turbine to generate electricity or meet the heating demand in other process.

[0003] Desulfurization refers to the removal of sulfur dioxide (SO2) contained in combustion waste gas or industrial waste gas, sulfur dioxide is a major atmospheric pollutant, which can cause acid rain, chemical smog and other environmental problems, common desulfurization methods include wet desulfurization, dry desulfurization and semi-dry desulfurization; Dust removal is the process of removing solid particles in waste gas, industrial waste gas often contains a large amount of dust, which will cause harm to the atmospheric environment and human health if directly discharged.

[0004] And the existing desulfurization dust removal equipment, when working, the flue gas cannot be fully contacted with the desulfurization liquid to react, so that some harmful substances contained in the flue gas are discharged, thereby causing pollution to the environment.

[0005] Therefore, the utility model provides a waste heat recovery desulfurization dust removal equipment. Utility model content

[0006] In order to make up for the deficiency of prior art, solve at least one technical problem proposed in the background art.

[0007] The utility model solves its technical problem adopts the technical scheme that the utility model discloses a kind of waste heat recovery desulfurization dust removal equipment, including first box body;The first box body top is fixedly connected with first motor;The first motor output end is fixedly connected with first shaft;The first shaft is fixedly connected with first bevel gear on the side end portion away from first motor;The first box body middle part is rotatably connected with hollow shaft;The hollow shaft top is fixedly connected with liquid injection port;The hollow shaft middle part is fixedly connected with second bevel gear;Second bevel gear and first bevel gear are meshed connection;The hollow shaft bottom is fixedly connected with liquid storage box;Multiple liquid outlets are arranged on the side wall of the liquid storage box;The liquid outlet is a certain distance away from the bottom of the liquid storage box;The first box body side wall is fixedly connected with suction fan;The suction fan side wall is fixedly connected with exhaust pipe;The first box body side wall is fixedly connected with first air inlet pipe;The first air inlet pipe is fixedly connected with second box body on the side end portion away from the first box body side wall;The second box body side wall is fixedly connected with second air inlet pipe, by being provided with first motor, centrifugal force generated by motor rotation is used, liquid medicine inside liquid storage box is sprayed to first box body inside, to make it fully first box body inside flue gas combination reaction, remove harmful substances in flue gas, and suction fan can be after flue gas in first box body and liquid neutralization reaction end, reach when discharging standard, the gas in first box body is extracted quickly, the volume amount when subsequent flue gas enters first box body inside is conveniently regulated.

[0008] Preferably, the first box body interior side wall is fixedly connected with a first filter screen;The first filter screen is arranged in the middle part of the first box body interior space;The middle part of the first filter screen is fixedly connected with a rubber ring on the side wall;The inner side wall of the rubber ring is fixedly connected with an arc-shaped groove;The inner side wall of the arc-shaped groove is fixedly connected with a second filter screen;The arc-shaped groove is arranged between the rubber ring and the second filter screen, and is smoothly connected with the side surfaces of the rubber ring and the second filter screen;A pair of rubber rods are fixedly connected with the first box body on the side wall of the rubber ring;The ends of the pair of rubber rods are fixedly connected with the inner side wall of the first box body, by being provided with the second filter screen, not only can the flue gas be dedusted, but also the liquid medicine sprayed by the liquid storage box can quickly slide off the surface of the second filter screen, reducing the accumulation of liquid medicine on the surface, and the arrangement of the arc-shaped groove can make the liquid medicine on the surface of the second filter screen slide off more smoothly, reducing the liquid medicine remaining at the junction of the first filter screen and the second filter screen, allowing more liquid medicine to fall to the lower part of the first box body, increasing the contact area of the flue gas and the liquid medicine, and improving the desulfurization and dust removal effect.

[0009] Preferably, the first box outer side wall is fixed with a second motor close to the lower part; the second motor output end is fixed with a second rotating shaft; the second rotating shaft end away from the first box is fixed with a first fixed block; the first fixed block side wall is fixed with a plurality of second rubber sticks; the second rubber stick end is fixed with a rubber block; the rubber block surface and the second filter screen surface are in contact with each other, by setting the rubber block, the surface of the second filter screen can be continuously knocked when a plurality of rubber blocks rotate together, forming vibration, which can not only accelerate the sliding of the liquid on the surface of the second filter screen, but also vibrate the second filter screen, thereby driving the first filter screen to vibrate together through the rubber ring, reducing the accumulation of dust inside the first filter screen and the second filter screen, and increasing the service life.

[0010] Preferably, the first box outer side wall is fixed with a second motor close to the lower part; the second motor output end is fixed with a second rotating shaft; the second rotating shaft end away from the first box is fixed with a first fixed block; the first fixed block side wall is fixed with a plurality of second rubber sticks; the second rubber stick end is fixed with a rubber block; the rubber block surface and the second filter screen surface are in contact with each other, by setting the rubber block, the surface of the second filter screen can be continuously knocked when a plurality of rubber blocks rotate together, forming vibration, which can not only accelerate the sliding of the liquid on the surface of the second filter screen, but also vibrate the second filter screen, thereby driving the first filter screen to vibrate together through the rubber ring, reducing the accumulation of dust inside the first filter screen and the second filter screen, and increasing the service life.

[0011] Preferably, the first box outer side wall is fixed with a second motor close to the lower part; the second motor output end is fixed with a second rotating shaft; the second rotating shaft end away from the first box is fixed with a first fixed block; the first fixed block side wall is fixed with a plurality of second rubber sticks; the second rubber stick end is fixed with a rubber block; the rubber block surface and the second filter screen surface are in contact with each other, by setting the rubber block, the surface of the second filter screen can be continuously knocked when a plurality of rubber blocks rotate together, forming vibration, which can not only accelerate the sliding of the liquid on the surface of the second filter screen, but also vibrate the second filter screen, thereby driving the first filter screen to vibrate together through the rubber ring, reducing the accumulation of dust inside the first filter screen and the second filter screen, and increasing the service life.

[0012] Preferably, the first box inner side is fixed with a plurality of heating strips; each group of heating strips is arranged on the upper and lower parts of the inner side wall of the first box, and is a certain distance away from the surface of the first filter screen, so that the flue gas in the first box can be neutralized and reacted with the liquid to remove sulfide more quickly and efficiently, the temperature environment can be controlled to speed up the related neutralization reaction, and the desulfurization effect is improved.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The waste heat recovery desulfurization dust removal equipment of the utility model, through setting up first motor, utilize centrifugal force produced by motor rotation, spray the liquid medicine inside the liquid storage box to the inside of first box body, make it combine reaction with the flue gas inside first box body fully, remove harmful substances in flue gas, and the suction fan can be after the flue gas inside first box body and the neutralization of liquid medicine end, reach the discharge standard, quickly extract the gas inside first box body, facilitate the volume of subsequent flue gas entering the inside of first box body when regulating and controlling.

[0015] 2. The waste heat recovery desulfurization dust removal equipment of the utility model, through setting up second filter screen, not only can carry out dust removal to flue gas, simultaneously, also can make the liquid medicine sprayed out of liquid storage box slide on the surface of second filter screen quickly, reduce the accumulation of liquid medicine on its surface, and the setting of arc-shaped groove can make the liquid medicine on the surface of second filter screen slide more smoothly, reduce the liquid medicine storage at the junction of first filter screen and second filter screen, let more liquid medicine fall to the lower part of first box body, increase the contact area of flue gas and liquid medicine, improve the desulfurization and dust removal effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings.

[0017] Figure 1 It is the perspective view of the utility model;

[0018] Figure 2 It is the sectional view of first box body and second box body in the utility model;

[0019] Figure 3 It is the structure schematic view of second filter screen in the utility model;

[0020] Figure 4 It is the structure schematic view of third motor in the utility model;

[0021] Figure 5 It is the sectional view of third filter screen in the utility model;

[0022] Figure 6 It is the structure schematic view of heating strip in the utility model;

[0023] In the figure: 1, the first box; 11, the first motor; 12, the first rotating shaft; 13, the first bevel gear; 14, the second bevel gear; 15, the liquid injection port; 16, the hollow rotating shaft; 17, the liquid storage box; 18, the liquid outlet; 19, the air suction fan; 110, the exhaust pipe; 111, the first air inlet pipe; 112, the second box; 113, the second air inlet pipe; 2, the first filter screen; 21, the rubber ring; 22, the arc-shaped groove; 23, the second filter screen; 24, the first rubber rod; 3, the second motor; 31, the second rotating shaft; 32, the first fixed block; 33, the second rubber rod; 34, the rubber block; 4, the third motor; 41, the third rotating shaft; 42, the second fixed block; 43, the connecting rod; 44, the baffle; 5, the third filter screen; 6, the heating strip. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0025] As Figures 1 to 3As shown in the embodiment of this utility model, a waste heat recovery desulfurization and dust removal device includes a first housing 1; a first motor 11 is fixedly connected to the top of the first housing 1; a first rotating shaft 12 is fixedly connected to the output end of the first motor 11; a first bevel gear 13 is fixedly connected to the end of the first rotating shaft 12 away from the first motor 11; a hollow rotating shaft 16 is rotatably connected to the middle of the first housing 1; a liquid injection port 15 is fixedly connected to the top of the hollow rotating shaft 16; a second bevel gear 14 is fixedly connected to the middle of the hollow rotating shaft 16; the second bevel gear 14 and the first bevel gear 13 are meshed; and a liquid storage box is fixedly connected to the bottom of the hollow rotating shaft 16. 17; The liquid storage box 17 has multiple liquid outlets 18 on its side wall; The liquid outlets 18 are at a certain distance from the bottom of the liquid storage box 17; An air intake fan 19 is fixedly connected to the side wall of the first box 1; An exhaust pipe 110 is fixedly connected to the side wall of the air intake fan 19; A first air inlet pipe 111 is fixedly connected to the side wall of the first box 1; A second box 112 is fixedly connected to the end of the first air inlet pipe 111 away from the side wall of the first box 1; A second air inlet pipe 113 is fixedly connected to the side wall of the second box 112. In use, high-temperature flue gas passes through the second air inlet pipe 113 and then through the interior of the second box 112. Subsequently, the heat will be fully absorbed by the cold water inside the second chamber 112, and then enter the first chamber 1 through the first air inlet pipe 111. At this time, an appropriate amount of medicine is injected into the storage box 17 through the injection port 15, and then the injection port 15 is blocked to seal it tightly. The switch of the first motor 11 is turned on to start it working. At this time, the first bevel gear 13 starts to rotate. Since the first bevel gear 13 and the second bevel gear 14 are meshed, the rotation of the first bevel gear 13 will drive the second bevel gear 14 to rotate together. The rotation of the second bevel gear 14 will drive the hollow rotating shaft 16 and the storage box 17 to rotate together. The liquid medicine inside the storage box 17 is evenly sprayed into the air above the inside of the first box 1. Finally, the gas inside the first box 1 is discharged by the suction fan 19. By setting the first motor 11, the centrifugal force generated by the rotation of the motor is used to spray the liquid medicine inside the storage box 17 into the inside of the first box 1, so that it can fully combine and react with the flue gas inside the first box 1 to remove harmful substances in the flue gas. The suction fan 19 can quickly extract the gas inside the first box 1 after the neutralization reaction between the flue gas and the liquid medicine inside the first box 1 is completed and the emission standard is met, so as to facilitate the control of the volume of subsequent flue gas entering the first box 1.

[0026] like Figures 1 to 3As shown, the first box 1 is internally connected with a first filter screen 2; the first filter screen 2 is arranged in the middle of the internal space of the first box 1; the middle side wall of the first filter screen 2 is fixedly connected with a rubber ring 21; the inner side wall of the rubber ring 21 is fixedly connected with an arc-shaped groove 22; the inner side wall of the arc-shaped groove 22 is fixedly connected with a second filter screen 23; the arc-shaped groove 22 is arranged between the rubber ring 21 and the second filter screen 23 and is smoothly connected with the two side surfaces of the rubber ring 21 and the second filter screen 23; the side wall of the rubber ring 21 is fixedly connected with a pair of first rubber rods 24; the ends of the pair of first rubber rods 24 are fixedly connected with the inner side wall of the first box 1; in use, flue gas enters the inside of the first box 1 from the bottom thereof through the first air inlet pipe 111, and then slowly gathers upward in the inside of the first box 1, fills the internal space of the first box 1, and when the flue gas gathers upward, first passes through the first filter screen 2 and the second filter screen 23 to filter the flue gas and remove dust particles therefrom, and then further reacts with the liquid medicine sprayed from the liquid storage box 17 to remove sulfide substances; by arranging the second filter screen 23, dust in the flue gas can be removed, and at the same time, the liquid medicine sprayed from the liquid storage box 17 can quickly slide on the surface of the second filter screen 23 to reduce the accumulation of the liquid medicine on the surface thereof; the arrangement of the arc-shaped groove 22 can make the sliding of the liquid medicine on the surface of the second filter screen 23 more smooth, reduce the liquid medicine remaining at the junction of the first filter screen 2 and the second filter screen 23, and make more liquid medicine fall to the lower part of the first box 1 to increase the contact area of the flue gas with the liquid medicine and improve the desulfurization and dust removal effect.

[0027] As shown in Figure 2 the lower part of the first box 1 is fixedly connected with a second motor 3; the output end of the second motor 3 is fixedly connected with a second rotating shaft 31; the end of the second rotating shaft 31 away from the first box 1 is fixedly connected with a first fixed block 32; the side wall of the first fixed block 32 is fixedly connected with a plurality of second rubber rods 33; the ends of the second rubber rods 33 are fixedly connected with rubber blocks 34; the surfaces of the rubber blocks 34 are in contact with the surface of the second filter screen 23; in use, the switch of the second motor 3 is turned on to make the second motor 3 start to work, at this time, the second rotating shaft 31 starts to rotate under the driving of the second motor 3 and drives the second rubber rods 33 and the rubber blocks 34 to rotate together, the rubber blocks 34 continuously contact with the surface of the second filter screen 23 when rotating to form a vibration effect and continuously knock the surface thereof; by arranging the rubber blocks 34, the surfaces of the second filter screen 23 can be continuously knocked when the plurality of rubber blocks 34 rotate together to form a vibration, which can not only accelerate the sliding of the liquid on the surface of the second filter screen 23, but also vibrate the second filter screen 23 to further drive the first filter screen 2 to vibrate through the rubber ring 21, reduce the accumulation of the filtered dust in the first filter screen 2 and the second filter screen 23, and increase the service life thereof.

[0028] As shown in Figure 4As shown, the first box 1 is away from the second motor 3 side of the outer wall of the fixed connection with the third motor 4; the third motor 4 output end is fixedly connected with the third rotating shaft 41; the third rotating shaft 41 end is fixedly connected with the second fixed block 42; the second fixed block 42 side wall is fixedly connected with the connecting rod 43; the connecting rod 43 end is fixedly connected with the baffle 44; the baffle 44 and the first box 1 inner wall contact, in use, open the switch of the third motor 4, make it start to work, under the action of the third motor 4, the third rotating shaft 41 starts to rotate, the rotation of the third rotating shaft 41 will drive the second fixed block 42, connecting rod 43 and baffle 44 rotate together, and then the position of the baffle 44 can be adjusted by rotating, by setting the baffle 44, after a large amount of flue gas enters the first box 1, start the third motor 4, and then adjust the position of the baffle 44 to close the opening of the first inlet pipe 111, prohibit the flue gas from entering the first box 1, reduce the continuous entry of flue gas, so that the flue gas in the first box 1 can be fully desulfurized and dedusted, after the flue gas is discharged, adjust the position of the baffle 44, open the opening of the first inlet pipe 111, so as to achieve the step type discharge and air intake.

[0029] As shown in Figure 5 the first inlet pipe 111 is fixedly connected with a plurality of third filter screens 5; the third filter screens 5 are evenly arranged in the first inlet pipe 111, in use, after the high temperature flue gas enters from the second inlet pipe 113, passes through the inside of the second box 112, the heat is fully absorbed, then enters the inside of the first inlet pipe 111, and then passes through the plurality of third filter screens 5 in the first inlet pipe 111, and is preliminarily filtered, by setting a plurality of third filter screens 5, the harmful substances and dust in the flue gas can be preliminarily filtered before entering the first box 1, so that the flue gas can be better operated in the next step when entering the first box 1.

[0030] As shown in Figure 6 a plurality of heating strips 6 are fixedly connected inside the first box 1; each group of the heating strip 6 is arranged on the upper and lower parts of the inner wall of the first box 1, and is a certain distance away from the surface of the first filter screen 2, in use, open the switch of the heating strip 6, make it start to heat, the heat is conducted to the inside of the first box 1 through the side wall of the first box 1, the temperature of the space in the first box 1 is raised, by setting a plurality of heating strips 6, the flue gas in the first box 1 can be more quickly and efficiently removed when it is neutralized with the liquid medicine, by controlling the temperature environment, the related neutralization reaction is accelerated, and the desulfurization effect is improved.

[0031] The working principle is that when in use, high-temperature flue gas passes through the inside of the second box body 112 through the second air inlet pipe 113, and after the high-temperature flue gas passes through the inside of the second box body 112, the heat is fully absorbed by the cold water in the inside of the second box body 112, and then enters the inside of the first box body 1 through the first air inlet pipe 111, at this time, an appropriate amount of liquid medicine is injected into the inside of the liquid storage box 17 through the liquid injection opening 15, and then the liquid injection opening 15 is blocked to make it tightly closed, the switch of the first motor 11 is turned on, and the first motor 11 starts to work, at this time, the first bevel gear 13 starts to rotate, since the first bevel gear 13 and the second bevel gear 14 are meshed and connected, the first bevel gear 13 rotates to drive the second bevel gear 14 to rotate, and the second bevel gear 14 rotates to drive the hollow rotating shaft 16 and the liquid storage box 17 to rotate, and the centrifugal force is used to uniformly spray the liquid medicine in the inside of the liquid storage box 17 in the air in the inside of the first box body 1, and finally the gas in the inside of the first box body 1 is exhausted through the air suction fan 19, the flue gas enters the inside of the first box body 1 from the bottom of the first box body 1 through the first air inlet pipe 111, and then slowly gathers in the air in the inside of the first box body 1, and fills the inside space of the first box body 1, when the flue gas gathers upward, the flue gas is first filtered through the first filter screen 2 and the second filter screen 23, and the dust particles in the flue gas are removed, and then the flue gas further reacts with the liquid medicine sprayed by the liquid storage box 17 to remove sulfide substances, the switch of the second motor 3 is turned on, and the second motor 3 starts to work, at this time, under the drive of the second motor 3, the second rotating shaft 31 starts to rotate, and drives the second rubber rod 33 and the rubber block 34 to rotate, the rubber block 34 rotates to continuously contact the surface of the second filter screen 23 to form a vibration effect and continuously knock the surface of the second filter screen 23, the switch of the third motor 4 is turned on, and the third motor 4 starts to work, under the action of the third motor 4, the third rotating shaft 41 starts to rotate, the rotation of the third rotating shaft 41 drives the second fixed block 42, the connecting rod 43 and the baffle 44 to rotate, and then the position of the baffle 44 can be adjusted by rotating, after the high-temperature flue gas enters through the second air inlet pipe 113, passes through the inside of the second box body 112, and the heat is fully absorbed, the flue gas enters the inside of the first air inlet pipe 111, and then passes through the plurality of third filter screens 5 in the inside of the first air inlet pipe 111 for preliminary filtration, the switch of the heating strip 6 is turned on, and the heating strip 6 starts to heat, heat is conducted to the inside of the first box body 1 through the side wall of the first box body 1 to raise the temperature of the space in the inside of the first box body 1.

[0032] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model, and the utility model will have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery desulfurization and dust removal apparatus, characterized by: The utility model provides a kind of liquid injection device, including first box (1);The first box (1) top is fixedly connected with first motor (11);The first motor (11) output end is fixedly connected with first rotating shaft (12);The first rotating shaft (12) is fixedly connected with first bevel gear (13) on the side end portion away from first motor (11);The first box (1) middle part is rotatably connected with hollow rotating shaft (16);The hollow rotating shaft (16) top is fixedly connected with liquid injection port (15);The hollow rotating shaft (16) middle part is fixedly connected with second bevel gear (14);Second bevel gear (14) and first bevel gear (13) are meshing connection;The hollow rotating shaft (16) bottom is fixedly connected with liquid storage box (17);The liquid storage box (17) side wall is equipped with multiple liquid outlets (18);The liquid outlet (18) is away from the bottom of liquid storage box (17) with certain distance;The first box (1) side wall is fixedly connected with suction fan (19);The suction fan (19) side wall is fixedly connected with exhaust pipe (110);The first box (1) side wall is fixedly connected with first air inlet pipe (111);The first air inlet pipe (111) is fixedly connected with second box (112) on the side end portion away from the first box (1) side wall;The second box (112) side wall is fixedly connected with second air inlet pipe (113).

2. The waste heat recovery desulfurization and dust removal equipment according to claim 1, characterized in that: The first box (1) inside side wall is fixedly connected with first filter screen (2);The first filter screen (2) is arranged in the middle of the inside space of first box (1);The first filter screen (2) middle part side wall is fixedly connected with rubber ring (21);The rubber ring (21) inner side wall is fixedly connected with arc slot (22);The arc slot (22) inner side wall is fixedly connected with second filter screen (23);The arc slot (22) is arranged between rubber ring (21) and second filter screen (23), and is smoothly connected with rubber ring (21) and second filter screen (23) two side surfaces;The rubber ring (21) side wall is fixedly connected with a pair of first rubber stick (24);A pair of first rubber stick (24) end is fixedly connected with the inside side wall of first box (1).

3. The waste heat recovery desulfurization and dust removal apparatus according to claim 2, characterized by: The first box (1) outside side wall is fixedly connected with second motor (3) near lower part;The second motor (3) output end is fixedly connected with second rotating shaft (31);The second rotating shaft (31) end portion away from first box (1) side is fixedly connected with first fixed block (32);The first fixed block (32) side wall is fixedly connected with multiple second rubber stick (33);Second rubber stick (33) end is fixedly connected with rubber block (34);The surface of rubber block (34) and the surface of second filter screen (23) are in contact with each other.

4. The waste heat recovery desulfurization and dust removal apparatus according to claim 3, characterized by: The first box (1) side away from second motor (3) is fixedly connected with third motor (4) on the outside side wall;The third motor (4) output end is fixedly connected with third rotating shaft (41);The third rotating shaft (41) end is fixedly connected with second fixed block (42);The second fixed block (42) side wall is fixedly connected with connecting rod (43);The connecting rod (43) end is fixedly connected with baffle (44);The baffle (44) is in contact with the inside side wall of first box (1).

5. The waste heat recovery desulfurization and dust removal apparatus according to claim 4, characterized by: A plurality of third filter screens (5) are fixed in the middle of the first air inlet pipe (111); the third filter screens (5) are evenly arranged inside the first air inlet pipe (111).

6. The waste heat recovery desulfurization and dust removal apparatus according to claim 5, characterized by: A plurality of groups of heating strips (6) are fixed on the inner side of the first box body (1); each group of the heating strips (6) is arranged on the upper and lower parts of the inner side wall of the first box body (1) and is a certain distance away from the surface of the first filter screen (2).