Flue gas recovery treatment device suitable for clean utilization of coal

Abstract

The invention provides a flue gas recovery treatment device suitable for clean utilization of coal, and relates to the technical field of flue gas treatment. Four supporting blocks are fixed to the bottom end face of the equipment base and make contact with the ground, a recycling box is fixed to the equipment base, a flue gas pipe is installed in the recycling box and connected with a coal waste gas discharging pipe, the positions, located on the front side and the rear side of the flue gas pipe, in the recycling box are each fixedly provided with a water tank, and water is stored in the water tanks. In the aspect of heat energy recovery, the flue gas pipe of a wave-shaped structure in the recovery assembly greatly prolongs the path in the recovery box, the heat diffusion area is remarkably enlarged through cooperation with the annular cooling fins welded to the outer wall of the flue gas pipe at equal intervals, heat energy in flue gas can be more sufficiently transmitted to a water tank in the recovery box, and heat energy recovery is efficiently achieved; and meanwhile, heat insulation cotton adhered to the inner wall of the recycling box effectively reduces heat loss, the heat recycling efficiency is further improved, and secondary utilization of energy is achieved.

Description

Technical Field

[0001] This invention relates to the field of flue gas treatment technology, and in particular to a flue gas recovery and treatment device adapted to the clean utilization of coal. Background Technology

[0002] Flue gas recovery and treatment equipment is a device used to recover, utilize, and purify flue gas generated during coal combustion and other processes. It aims to achieve clean coal utilization, reduce pollutant emissions, and improve energy efficiency.

[0003] Although the existing device is equipped with heat recovery components, it cannot achieve multiple expansions of heat dissipation, resulting in low recovery efficiency. When filtering flue gas, the existing device cannot fully improve the contact effect between flue gas and filter liquid, resulting in poor filtration effect. Summary of the Invention

[0004] This invention relates to a flue gas recovery and treatment device adapted to the clean utilization of coal, which solves the problems of existing devices, although equipped with heat recovery components, cannot achieve multiple expansions of heat dissipation and have low recovery efficiency; and existing devices cannot fully improve the contact effect between flue gas and filter liquid when filtering flue gas, resulting in poor filtration effect.

[0005] This invention provides a flue gas recovery and treatment device adapted to the clean utilization of coal, specifically including: an equipment base; four support blocks are fixed on the bottom surface of the equipment base, all four support blocks are in contact with the ground, a recovery assembly is installed on the equipment base, the recovery assembly consists of a recovery box, a flue gas pipe, heat sink, water tank, heat insulation cotton, connecting pipe, jet pipe and spray hole, the recovery box is fixed on the equipment base, the flue gas pipe is installed in the recovery box and connected to the coal waste gas emission pipe, a water tank is fixed on both the front and rear sides of the flue gas pipe inside the recovery box, the water tank stores water, the flue gas pipe has a corrugated structure, and the gas inside the flue gas pipe contains heat.

[0006] Furthermore, heat sinks are welded at equal intervals on the flue pipe. The heat sinks are annular plate structures and serve as auxiliary diffusers for heat dissipation in the flue pipe.

[0007] Furthermore, the recycling bin has a rectangular box-shaped structure, and heat insulation cotton is adhered to the inner wall of the recycling bin.

[0008] Furthermore, a connecting pipe is connected to one end of the flue gas pipe on the right side, and two jet pipes are connected to the connecting pipe; a processing assembly is installed on the equipment base, which consists of a processing box, a cover plate, a drain pipe, an exhaust pipe, a partition, a through hole, and a filter box. The processing box is fixed on the upper surface of the equipment base, and both jet pipes are located inside the processing box, which is filled with flue gas filter liquid.

[0009] Furthermore, both jet pipes are cylindrical tubular structures, and each jet pipe has nozzles arranged in a ring array on its outer wall.

[0010] Furthermore, a partition is fixed inside the processing box. The partition is a rectangular plate structure with through holes evenly spaced on it. The through holes are circular holes. The partition is located above the jet pipe.

[0011] Furthermore, a cover plate is fixed to the top of the processing box. The cover plate has a stepped structure, with the outer wall of the lower half of the cover plate in contact with the inner wall of the processing box, and the bottom end face of the upper half of the cover plate in contact with the top end face of the processing box.

[0012] Furthermore, a drain pipe is welded to the treatment box, an exhaust pipe is welded to the cover plate, a filter box is fixed to the exhaust pipe, and the filter box is filled with activated carbon.

[0013] Furthermore, an adjustment assembly is installed inside the processing box. The adjustment assembly consists of a base block, an electric cylinder, a mounting frame, and a clearing rod. Two base blocks are symmetrically fixed on the inner wall of the processing box. An electric cylinder is fixed to the bottom end of each base block. The protruding ends of the two electric cylinders are fixed to the mounting frame. The mounting frame has a hollow structure. Clearing rods are welded at equal intervals to the bottom end of the mounting frame. The clearing rods are aligned with the through holes.

[0014] Furthermore, the unblocking rod is a cylindrical rod-shaped structure with a diameter larger than that of the through hole. The lower end of the unblocking rod is a pointed structure, which is used to adjust the flow rate of the through hole.

[0015] Furthermore, an auxiliary component is installed inside the processing box. The auxiliary component consists of a mixing plate, a threaded rod, and a motor. The mixing plate is located inside the processing box and slides on two jet pipes. A threaded rod rotates on the processing box and is threadedly connected to the mixing plate. A motor is fixed to the right end face of the processing box, and the output shaft of the motor is fixed to the threaded rod.

[0016] This invention provides a flue gas recovery and treatment device adapted to the clean utilization of coal, which has the following beneficial effects: In terms of heat recovery, the flue gas pipe with a wavy structure in the recovery component significantly extends the path within the recovery box. Combined with the annular heat sink welded at equal intervals on its outer wall, it significantly expands the heat diffusion area, allowing the heat energy in the flue gas to be more fully transferred to the water tank inside the recovery box, thus achieving efficient heat recovery. At the same time, the heat insulation cotton adhered to the inner wall of the recovery box effectively reduces heat loss, further improving the heat recovery efficiency and realizing the secondary utilization of energy.

[0017] In terms of flue gas filtration, this application utilizes two jet pipes in the treatment assembly to disperse the flue gas through an annular array of nozzles, increasing the contact area with the filter liquid inside the treatment chamber. The baffle above the jet pipes and its equidistantly spaced through holes can separate the bubbles formed by the flue gas, further enhancing the gas-liquid contact effect and improving filtration efficiency. When the flue gas filtered by the liquid is discharged through the exhaust pipe, it will be further purified by activated carbon in the filter box fixed on the exhaust pipe. This multi-filtration mechanism significantly improves the flue gas treatment effect, ensuring cleaner exhaust gas.

[0018] This application effectively solves the clogging problem during long-term use by adjusting the component settings. Two electric cylinders drive the mounting bracket to move the unclogging rod up and down. When the unclogging rod is aligned with the through hole, it can promptly remove the blockage in the through hole and ensure smooth flue gas flow. At the same time, by taking advantage of the fact that the diameter of the unclogging rod is larger than that of the through hole and that the lower end is pointed, the flow rate of the through hole can be flexibly changed by adjusting its insertion depth, so as to achieve precise control of the flue gas treatment effect.

[0019] This application, through the setting of auxiliary components, enables the motor to drive the threaded rod to rotate back and forth, causing the mixing plate to move back and forth on the two jet pipes, thereby accelerating the flow speed of the filtered liquid, making the mixing of liquid and flue gas more uniform and the contact more sufficient, and improving the overall treatment efficiency.

[0020] The top of the treatment box in this application adopts a stepped cover plate, with the lower half of the outer wall in contact with the inner wall of the treatment box and the bottom surface of the upper half fitting against the top surface of the treatment box, which significantly enhances the sealing performance and effectively avoids pollution caused by flue gas leakage; the drain pipe on the treatment box facilitates timely replacement of the filter liquid and ensures the stability of the treatment effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0022] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0023] In the attached diagram: Figure 1 This invention provides an axial view of the flue gas recovery and treatment device adapted to the clean utilization of coal. Figure 2 This invention provides a schematic front view of a flue gas recovery and treatment device adapted to the clean utilization of coal. Figure 3 This shows a partially cut-out axial view of the flue gas recovery and treatment device of the present invention adapted to the clean utilization of coal. Figure 4 The present invention is shown. Figure 3A schematic diagram of the axial view structure after further cross-section; Figure 5 The present invention is shown. Figure 4 A magnified structural diagram at point A; Figure 6 The present invention is shown. Figure 4 A magnified structural diagram at point B; Figure 7 The present invention is shown. Figure 3 A schematic diagram of the main structure after further cross-section; Figure 8 A schematic axial view of the jet pipe, nozzle, baffle, and auxiliary components of the present invention is shown.

[0024] List of reference numerals 1. Equipment base; 101. Support block; 2. Recycling component; 201. Recycling box; 202. Flue gas pipe; 203. Heat sink; 204. Water tank; 205. Insulation cotton; 206. Connecting pipe; 207. Jet pipe; 208. Spray hole; 3. Processing component; 301. Processing box; 302. Cover plate; 303. Drain pipe; 304. Exhaust pipe; 305. Partition plate; 306. Through hole; 307. Filter box; 4. Adjustment component; 401. Base block; 402. Electric cylinder; 403. Mounting bracket; 404. Unblocking rod; 5. Auxiliary component; 501. Mixing plate; 502. Threaded rod; 503. Motor. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figures 1 to 8 : This invention proposes a flue gas recovery and treatment device adapted to the clean utilization of coal, comprising: an equipment base 1; four support blocks 101 are fixed to the bottom surface of the equipment base 1, all four support blocks 101 are in contact with the ground; a recovery assembly 2 is installed on the equipment base 1, the recovery assembly 2 consists of a recovery box 201, a flue gas pipe 202, a heat sink 203, a water tank 204, heat insulation cotton 205, a connecting pipe 206, a jet pipe 207, and a spray hole 208; the recovery box 201 is fixed on the equipment base 1, and the flue gas pipe 202 is installed inside the recovery box 201. 2. Connected to the coal exhaust pipe, the recovery box 201 has a water tank 204 fixed on both sides of the flue gas pipe 202. The water tank 204 stores water. The flue gas pipe 202 has a wavy structure. The gas inside the flue gas pipe 202 contains heat. After the flue gas enters the flue gas pipe 202, the heat emitted by the flue gas pipe 202 can heat the water in the water tank 204, realizing heat energy recovery. Moreover, because the flue gas pipe 202 has a wavy structure, the length of the flue gas pipe 202 inside the recovery box 201 is extended, thereby improving the efficiency of heat energy recovery.

[0027] Among them, heat sinks 203 are welded at equal intervals on the flue pipe 202. The heat sinks 203 are annular plate structures and serve as auxiliary diffusers for heat from the flue pipe 202. The heat sinks 203 can expand the heat diffusion area of ​​the flue pipe 202, thereby improving the heat recovery efficiency.

[0028] The recycling bin 201 has a rectangular box-shaped structure. The inner wall of the recycling bin 201 is covered with heat insulation cotton 205. Under the blocking effect of the heat insulation cotton 205, the heat loss of the flue pipe 202 can be reduced, which in turn improves the heat recovery effect.

[0029] The flue gas pipe 202 is connected to a connecting pipe 206 on one side, and two jet pipes 207 are connected to the connecting pipe 206. The equipment base 1 is equipped with a processing component 3, which consists of a processing box 301, a cover plate 302, a drain pipe 303, an exhaust pipe 304, a partition plate 305, a through hole 306, and a filter box 307. The processing box 301 is fixed to the upper surface of the equipment base 1. Both jet pipes 207 are located inside the processing box 301. The processing box 301 is filled with flue gas filtration liquid. When the flue gas ejected from the jet pipes 207 comes into contact with the filtration liquid in the processing box 301, the flue gas can be filtered.

[0030] Both jet pipes 207 are cylindrical tubular structures, and each jet pipe 207 has annular array nozzles 208 on its outer wall. When the flue gas is ejected through the annular array nozzles 208, the contact effect between the flue gas and the filter liquid can be improved, thereby improving the filtration effect of the flue gas.

[0031] The treatment box 301 is fixed with a partition 305, which is a rectangular plate structure. The partition 305 has through holes 306 at equal intervals. The through holes 306 are circular holes. The partition 305 is located above the jet pipe 207. When the flue gas is ejected through the nozzle 208, it will move upward. At this time, the flue gas will pass through the through holes 306. Under the separation effect of the through holes 306, the bubbles formed by the flue gas can be separated, which further improves the contact effect between the flue gas and the filter liquid, and thus further improves the treatment effect of the flue gas.

[0032] The top of the treatment box 301 is fixed with a cover plate 302. The cover plate 302 has a stepped structure. The outer wall of the lower half of the cover plate 302 contacts the inner wall of the treatment box 301, and the bottom surface of the upper half of the cover plate 302 contacts the top surface of the treatment box 301. The stepped structure of the cover plate 302 can improve the sealing performance between the cover plate 302 and the treatment box 301, thereby preventing the leakage of flue gas.

[0033] The treatment box 301 is welded with a drain pipe 303, the cover plate 302 is welded with an exhaust pipe 304, and a filter box 307 is fixed on the exhaust pipe 304. The filter box 307 is filled with activated carbon. When the flue gas is filtered by the liquid in the treatment box 301, it will be discharged through the exhaust pipe 304. At this time, the flue gas can be further treated by the filter box 307, which improves the treatment effect of the flue gas.

[0034] The processing box 301 is equipped with an adjustment component 4, which consists of a base block 401, an electric cylinder 402, a mounting frame 403, and a blockage-clearing rod 404. Two base blocks 401 are symmetrically fixed on the inner wall of the processing box 301. Each base block 401 has an electric cylinder 402 fixed on its bottom end. The extended ends of the two electric cylinders 402 are fixed on the mounting frame 403. The mounting frame 403 has a hollow structure. The blockage-clearing rods 404 are welded at equal intervals on the bottom end of the mounting frame 403. The blockage-clearing rods 404 are aligned with the through hole 306. When clearing the blockage of the through hole 306, the two electric cylinders 402 are driven to extend. The two electric cylinders 402 drive the mounting frame 403 and the blockage-clearing rods 404 to move downward. The blockage-clearing rods 404 can clear the blockage of the through hole 306.

[0035] The treatment box 301 is equipped with an auxiliary component 5, which consists of a mixing plate 501, a threaded rod 502, and a motor 503. The mixing plate 501 is located inside the treatment box 301 and slides on two jet pipes 207. The threaded rod 502 rotates on the treatment box 301 and is threadedly connected to the mixing plate 501. The motor 503 is fixed to the right end face of the treatment box 301, and the output shaft of the motor 503 is fixed to the threaded rod 502. When mixing the liquid inside the treatment box 301, the motor 503 is driven to rotate reciprocally. The motor 503 drives the threaded rod 502 to rotate reciprocally. Through the reciprocating drive of the threaded rod 502, the mixing plate 501 can move left and right. Through the left and right reciprocating movement of the mixing plate 501, the flow of liquid inside the treatment box 301 can be accelerated, thereby improving the contact effect between the liquid and the flue gas, and ultimately improving the treatment effect of the flue gas.

[0036] Example 2, based on Example 1, such as Figures 1-8 As shown, the unblocking rod 404 is a cylindrical rod-shaped structure with a diameter larger than that of the through hole 306. The lower end of the unblocking rod 404 is a pointed structure. When adjusting the flow rate of the through hole 306, the two electric cylinders 402 are driven to extend. The two electric cylinders 402 drive the mounting bracket 403 and the unblocking rod 404 to move downward. By adjusting the position of the unblocking rod 404 inserted into the through hole 306, the flow rate of the through hole 306 can be adjusted, thereby adjusting the flue gas treatment effect.

[0037] The working principle of this embodiment is as follows: First, the coal waste gas emission pipe is connected to the flue gas pipe 202, allowing the flue gas to smoothly enter the flue gas pipe 202 in the recovery assembly 2. At this time, the heat contained in the gas in the flue gas pipe 202 begins to play a role. Since the flue gas pipe 202 has a wavy structure, its length within the recovery box 201 is extended. At the same time, the annular heat dissipation fins 203 welded at equal intervals on the flue gas pipe 202 further expand the heat diffusion area. This heat will heat the water in the water tanks 204 located on both sides of the flue gas pipe 202 inside the recovery box 201, realizing heat energy recovery. Meanwhile, the heat insulation cotton 205 adhered to the inner wall of the recovery box 201 will prevent heat loss and improve the heat recovery effect. The flue gas that has undergone heat energy recovery will pass through the flue gas pipe 202. The connecting pipe 206 connected to the right end enters two jet pipes 207 and is ejected into the processing box 301 of the processing assembly 3 through the annular array of nozzles 208 on the outer wall of the jet pipes 207. The processing box 301 is pre-filled with flue gas filter liquid. The ejected flue gas comes into contact with the filter liquid to achieve preliminary filtration. Due to the annular array design of the nozzles 208, the contact effect between the flue gas and the filter liquid is improved. When the flue gas moves upward, it passes through the equidistant circular through holes 306 on the fixed partition 305 inside the processing box 301. The partition 305 is located above the jet pipes 207. The through holes 306 will divide the bubbles formed by the flue gas, further improving the contact effect. The stepped cover plate 302 at the top of the processing box 301 connects to the lower half of the outer wall. The contact between the inner wall of the treatment box 301 and the bottom surface of the upper part of the treatment box 301 with the top surface of the treatment box 301 ensures good sealing and prevents flue gas leakage. To further improve the flue gas treatment effect, the adjustment component 4 can be activated. When it is necessary to clear the blockage of the through hole 306 or adjust the flow rate, the electric cylinders 402 on the bottom surfaces of the two base blocks 401 symmetrically fixed on the inner wall of the treatment box 301 are extended. The electric cylinders 402 drive the mounting bracket 403 and the unblocking rods 404 welded at equal intervals on the bottom surfaces to move downward. The unblocking rods 404 are aligned with the through hole 306. The design of its pointed lower end and larger than the diameter of the through hole 306 can not only clear the blockage, but also adjust the flow rate of the through hole 306 by the insertion position, thereby adjusting the flue gas treatment effect. At the same time, the auxiliary component 5 can be activated. The motor 503, fixed to the right end of the treatment box 301, reciprocates. The output shaft of the motor 503 drives the threaded rod 502 to reciprocate, causing the mixing plate 501, which is threaded onto the threaded rod 502 and slides on the two jet pipes 207, to move back and forth, accelerating the flow of liquid in the treatment box 301 and improving the contact effect between the liquid and the flue gas. The flue gas, after being treated by the filtered liquid in the treatment box 301, will be discharged through the exhaust pipe 304 welded on the cover plate 302. The activated carbon filled in the filter box 307 fixed on the exhaust pipe 304 will further treat the flue gas, ultimately achieving clean emission. During use, the used filtered liquid can be discharged in time through the drain pipe 303 welded on the treatment box 301 for replacement with new filtered liquid.

Claims

1. A flue gas recovery and treatment device adapted to the clean utilization of coal, characterized in that, include: The equipment base has four support blocks fixed to its bottom surface, all of which are in contact with the ground. A recycling assembly is installed on the equipment base. The recycling assembly consists of a recycling box, a flue gas pipe, heat sinks, a water tank, insulation cotton, a connecting pipe, a jet pipe, and nozzles. The recycling box is fixed on the equipment base, and a flue gas pipe is installed inside the recycling box. The flue gas pipe is connected to a coal waste gas emission pipe. A water tank is fixed on both the front and rear sides of the flue gas pipe inside the recycling box. The water tanks store water. The flue gas pipe has a corrugated structure, and the gas inside the flue gas pipe contains heat. Heat sinks are welded at equal intervals on the flue gas pipe. The heat sinks have annular plate structures and serve as auxiliary heat diffusers for the flue gas pipe.

2. The flue gas recovery and treatment device adapted to clean coal utilization according to claim 1, characterized in that, The recycling bin has a rectangular box-shaped structure, and the inner wall of the recycling bin is covered with heat insulation cotton.

3. A flue gas recovery and treatment device adapted to clean coal utilization according to claim 2, characterized in that, One end of the flue gas pipe is connected to a connecting pipe, and two jet pipes are connected to the connecting pipe; a processing assembly is installed on the equipment base. The processing assembly consists of a processing box, a cover plate, a drain pipe, an exhaust pipe, a partition, a through hole, and a filter box. The processing box is fixed on the upper surface of the equipment base, and both jet pipes are located inside the processing box. The processing box is filled with flue gas filtration liquid.

4. A flue gas recovery and treatment device adapted to clean coal utilization according to claim 3, characterized in that, Both jet pipes are cylindrical tubular structures, and each jet pipe has nozzles arranged in a ring array on its outer wall.

5. A flue gas recovery and treatment device adapted to clean coal utilization according to claim 4, characterized in that, The processing box is fixed with a partition, which is a rectangular plate structure with through holes evenly spaced on it. The through holes are circular holes, and the partition is located above the jet pipe.

6. A flue gas recovery and treatment device adapted to clean coal utilization according to claim 5, characterized in that, The top of the processing box is fixed with a cover plate, which has a stepped structure. The outer wall of the lower half of the cover plate contacts the inner wall of the processing box, and the bottom surface of the upper half of the cover plate contacts the top surface of the processing box.

7. A flue gas recovery and treatment device adapted to clean coal utilization according to claim 6, characterized in that, The treatment box is welded with a drain pipe, and the cover is welded with an exhaust pipe. A filter box is fixed on the exhaust pipe, and the filter box is filled with activated carbon.

8. A flue gas recovery and treatment device adapted to clean coal utilization according to claim 7, characterized in that, The processing box is equipped with an adjustment assembly, which consists of a base block, an electric cylinder, a mounting frame, and a clearing rod. Two base blocks are symmetrically fixed on the inner wall of the processing box. An electric cylinder is fixed on the bottom end of each base block. The protruding ends of the two electric cylinders are fixed on the mounting frame. The mounting frame has a hollow structure. Clearing rods are welded at equal intervals on the bottom end of the mounting frame, and the clearing rods are aligned with the through holes.

9. A flue gas recovery and treatment device adapted to clean coal utilization according to claim 8, characterized in that, The unblocking rod is a cylindrical rod-shaped structure with a diameter larger than that of the through hole. The lower end of the unblocking rod is a pointed structure, which is used to adjust the flow rate of the through hole.

10. A flue gas recovery and treatment device adapted to clean coal utilization according to claim 9, characterized in that, An auxiliary component is installed inside the processing box. The auxiliary component consists of a mixing plate, a threaded rod, and a motor. The mixing plate is located inside the processing box and slides on two jet pipes. A threaded rod rotates on the processing box and is threadedly connected to the mixing plate. A motor is fixed to the right end face of the processing box, and the output shaft of the motor is fixed to the threaded rod.

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