Cement production waste heat recovery power generation filtering structure

Abstract

The utility model discloses a cement production waste heat recovery power generation filter structure, which belongs to the technical field of filter structures, and comprises a filter box, a swing mechanism is arranged in the filter box, the swing mechanism comprises an obliquely arranged mounting plate, and the middle position of the mounting plate is fixedly connected with a filter screen. The device has the beneficial effects that a swing mechanism and a cleaning mechanism are arranged, when a filter screen filters hot air introduced into a steam pipe, the filter screen is rotationally cleaned through a brush, and meanwhile, a cam and a fixing plate interact, so that a mounting plate swings at a certain angle around a rotating shaft, and the removal effect of impurities on the filter screen is enhanced; the inclined connecting frame is more beneficial for the impurities to directly fall into the collecting box and prevent the impurities from being accumulated, and most hot air passes through the upper half part of the filter screen, so that the accumulation amount of the impurities on the upper half part of the filter screen is large, the vibration amplitude of the swinging mounting plate to the upper half part is large, and the overall cleaning effect on the filter screen is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering structures, in particular to a filtering structure for waste heat recovery power generation in cement production. Background Technique

[0002] Cement is a powdery hydraulic inorganic binder. During the cement production process, a large amount of gas heat is generated. These gas heats are usually wasted without being recycled. By adopting the technology that one end of the magnetic levitation support component is threadedly connected to the second steam pipe, the technology of permanent magnet high-speed generators, and the organic Rankine cycle technology, the pressure energy and heat energy of the organic medium gas are converted into mechanical energy, and then the mechanical energy is converted into electrical energy, realizing the collection, circulation, and power generation of industrial low-temperature waste heat, effectively improving the energy utilization rate. However, the impurities in the gas heat recovered through the gas pipe during cement production need to be filtered to avoid affecting the normal operation of the generator.

[0003] After retrieval, the Chinese patent publication number CN220583167U discloses a filtering structure for waste heat recovery power generation in cement production. This patent uses a driving rod, bevel gears, a driven rod, a cam, a groove, a spring, and a connecting block. In order to avoid the blockage of the filter holes of the filter plate for a long time, the motor is started by an external button to drive the bevel gear one on the surface of the driving rod to mesh and rotate with the bevel gears two on both sides. Thus, the two bevel gears two drive the cam on the surface of the driven rod to rotate, and the cam will push the connecting blocks arranged at both ends of the filter plate. And the connecting blocks will squeeze and store energy in the spring. The connecting blocks move in the groove. Further, the cam intermittently pushes the filter plate, making the filter plate vibrate reciprocally so that some impurities adhered to the surface fall off, avoiding the blockage of the filter holes, ensuring the normal filtration of the filter holes, and improving the efficiency. However, during the use of this device, the impurities falling off the filter net will accumulate during long-term filtering operations, affecting the filtering effect and service life of the filter net. And since a large amount of hot steam will carry impurities through the upper half of the filter net, there are no measures to ensure the overall cleaning effect according to the overall impurity distribution of the filter net, affecting the cleaning effect of the filter net, and the practicability needs to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a filtering structure for waste heat recovery power generation in cement production to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A waste heat recovery power generation filtering structure for cement production, comprising a filtering box with openings on both sides. A gas outlet pipe is fixedly connected to the position of the gas outlet of the filtering box, and the gas outlet pipe is communicated with a magnetic levitation low-temperature waste heat generator. A swinging mechanism is arranged inside the filtering box. The swinging mechanism includes an inclined mounting plate. A filter screen is fixedly connected to the middle position of the mounting plate. A rotating shaft is fixedly connected to the bottom side of the mounting plate. A fixed seat is fixedly connected inside the filtering box, and the rotating shaft is rotatably connected to the fixed seat;

[0007] A cleaning mechanism is arranged on the mounting plate, and a collecting mechanism is arranged at the bottom of the filtering box. The cleaning mechanism includes two symmetrically arranged connecting plates. A connecting shaft is rotatably connected to the connecting plates. One end of the connecting shaft is fixedly connected with a cam. Fixed plates are fixedly connected to the positions of the inner walls on both sides of the filtering box. When the connecting shaft rotates, the cam interacts with the fixed plates to vibrate and shed the impurities on the filter screen.

[0008] Preferably, an arc-shaped plate is fixedly connected to the top of the mounting plate, and a guiding seat is fixedly connected to the inner wall of the top of the filtering box. The cross-section of the arc-shaped plate is an arc with the rotating shaft as the center of the circle. A groove matching with the arc-shaped plate is opened in the guiding seat, and several springs are installed in the guiding seat.

[0009] Preferably, the cleaning mechanism includes a connecting frame. The connecting frame is arranged on the side of the mounting plate away from the connecting plate. A motor is fixedly installed on the connecting frame. The output end of the motor is fixedly connected with a first bevel gear. Second bevel gears are meshed on both sides of the first bevel gear. The second bevel gear is fixedly connected to the end of the connecting shaft away from the cam.

[0010] Preferably, an activated carbon plate and a brush are fixedly connected to the side of the output shaft of the motor.

[0011] Preferably, the mounting plate is inclined in a direction away from the gas outlet pipe.

[0012] Preferably, the collecting mechanism includes a collecting box, and a V-shaped channel is arranged between the collecting box and the filtering box.

[0013] Preferably, a closing plate is rotatably connected to the bottom of the collecting box. A rotating buckle is rotatably connected to one side of the closing plate, and a fixed buckle is fixedly connected to the side of the collecting box.

[0014] The beneficial effects are as follows: The swinging mechanism and the cleaning mechanism are provided. When the filter screen filters the hot air introduced into the steam pipe, the filter screen is rotationally cleaned by the brush. At the same time, the cam interacts with the fixed plate to make the mounting plate swing at a certain angle around the rotating shaft, so as to enhance the removal effect of the impurities on the filter screen. The inclined connecting frame is more conducive to the impurities directly falling into the collecting box to prevent the accumulation of impurities. And because most of the hot air passes through the upper half of the filter screen, resulting in a large amount of impurities accumulating on the upper half of the filter screen, the swinging mounting plate has a large vibration amplitude on the upper half, further enhancing the cleaning effect on the overall filter screen.

[0015] The additional technical features and their advantages of the present utility model will be more clearly described in the following description content, or can be understood through the specific practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the following specific implementation manners, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is a schematic diagram of a filtering structure for waste heat recovery power generation in cement production according to the present utility model;

[0018] Figure 2 is a first-angle cross-sectional view of the filter box of a filtering structure for waste heat recovery power generation in cement production according to the present utility model;

[0019] Figure 3 is a second-angle cross-sectional view of the filter box of a filtering structure for waste heat recovery power generation in cement production according to the present utility model;

[0020] Figure 4 is an internal schematic diagram of the filter box of a filtering structure for waste heat recovery power generation in cement production according to the present utility model;

[0021] Figure 5 is a first-angle connection schematic diagram of the swing mechanism and the cleaning mechanism of a filtering structure for waste heat recovery power generation in cement production according to the present utility model;

[0022] Figure 6 is a second-angle connection schematic diagram of the swing mechanism and the cleaning mechanism of a filtering structure for waste heat recovery power generation in cement production according to the present utility model.

[0023] The description of the reference numerals in the drawings is as follows: 101, filter box; 102, steam pipe; 103, air outlet pipe; 104, cement raw material grinding production line; 105, magnetic levitation low-temperature waste heat generator; 201, mounting plate; 202, filter screen; 203, rotating shaft; 204, arc plate; 205, fixed seat; 206, guiding seat; 207, spring; 301, connecting frame; 302, motor; 303, first bevel gear; 304, activated carbon plate; 305, brush; 306, second bevel gear; 307, connecting shaft; 308, connecting plate; 309, cam; 310, fixing plate; 401, collection box; 402, V-shaped channel; 403, closing plate; 404, rotating buckle; 405, fixing buckle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0026] The present utility model will be further described below with reference to the accompanying drawings:

[0027] As Figure 1 — Figure 6 shown, a filter structure for recovering waste heat and generating electricity in cement production includes a filter box 101. Both sides of the filter box 101 are provided with openings. A steam pipe 102 is bolted to the air inlet position of the filter box 101, and the steam pipe 102 communicates with the cement raw material grinding production line 104. An air outlet pipe 103 is bolted to the air outlet position of the filter box 101, and the air outlet pipe 103 communicates with the magnetic levitation low-temperature waste heat generator 105. A swinging mechanism is arranged in the filter box 101. The swinging mechanism includes an inclined mounting plate 201. The mounting plate 201 is inclined away from the air outlet pipe 103. The swinging mounting plate 201 is beneficial to the falling off of impurities on the filter screen 202. And since most of the hot steam passes through the upper part of the filter screen 202, when the mounting plate 201 is in a swinging state, the swinging amplitude of the upper half of the filter screen 202 is greater than that of the lower half, increasing the vibration amplitude at the position with more impurities, so the overall cleaning effect of the filter screen 202 can be enhanced. A filter screen 202 is bolted to the middle position of the mounting plate 201. A rotating shaft 203 is welded to the bottom side of the mounting plate 201. A fixed seat 205 is bolted in the filter box 101, and the rotating shaft 203 is rotatably connected to the fixed seat 205;

[0028] A cleaning mechanism is provided on the mounting plate 201, and a collection mechanism is provided at the bottom of the filter box 101. The cleaning mechanism includes two symmetrically arranged connecting plates 308. A connecting shaft 307 is rotatably connected to the connecting plate 308. One end of the connecting shaft 307 is bolted with a cam 309. Fixing plates 310 are bolted to the inner walls on both sides of the filter box 101. The surface of the fixing plate 310 facing the cam 309 forms a certain angle with the horizontal plane to prevent the cam 309 from getting stuck with the fixing plate 310 during rotation, which may affect the swing of the connecting frame 301. The cam 309 is used to interact with the fixing plate 310 when the connecting shaft 307 rotates, driving the mounting plate 201 to reciprocally swing within a certain angle range, causing the impurities on the filter screen 202 to vibrate and fall off.

[0029] In this embodiment, an arc-shaped plate 204 is bolted to the top of the mounting plate 201, and a guide seat 206 is bolted to the inner wall of the top of the filter box 。The cross-section of the arc-shaped plate 204 is an arc centered on the rotating shaft . A groove matching the arc-shaped plate 204 is formed in the guide seat 206, and several springs 207 are installed in the guide seat 206. When the mounting plate 201 swings, the arc-shaped plate 204 at the top of the mounting plate 201 moves synchronously and compresses the springs 207 in the guide seat 206. The springs 207 will periodically release the elastic force during compression, causing the mounting plate 201 to vibrate, and the impurities on the filter screen 202 to fall off.

[0030] In this embodiment, the cleaning mechanism includes a connecting frame 301. The connecting frame 301 is arranged on the side of the mounting plate 201 away from the connecting plate 308. A motor 302 is fixedly installed on the connecting frame 301. The output shaft of the motor 302 passes through the center of the filter screen 202 and is rotatably connected. A first bevel gear 303 is bolted to the output end of the motor 30 , and two second bevel gears 306 are meshed on both sides of the first bevel gear 303. The second bevel gear 306 is bolted to the end of the connecting shaft 307 away from the cam 309. An activated carbon plate 304 and a brush 305 are fixedly connected to the side of the output shaft of the motor 302. When filtering the hot steam generated during cement production, the motor 302 runs continuously. The motor 302 drives the first bevel gear 303, the activated carbon plate 304 and the brush 305 to rotate. The brush 305 continuously cleans the surface of the filter screen 202 to ensure a good cleaning effect. The activated carbon plate 304 absorbs harmful substances in the steam. The first bevel gear 303 drives the second bevel gear 306 to rotate, and drives the cam 309 to rotate through the connecting shaft 307, thereby realizing the swinging effect of the mounting plate 201.

[0031] In this embodiment, the collection mechanism includes a collection box 401. A V-shaped channel 402 is provided between the collection box 401 and the filtration box 101. The impurities falling off the filter screen 202 fall into the collection box 401 through the V-shaped channel 402. The setting of the V-shaped channel 402 prevents steam from passing through and causing a negative pressure effect, so that the impurities do not return to the filtration box 101.

[0032] In this embodiment, a closing plate 403 is rotatably connected to the bottom of the collection box 401. A rotating buckle 404 is rotatably connected to one side of the closing plate 403. A fixing buckle 405 is connected to the side of the collection box 401 by bolts. Rotating the rotating buckle 404 can open the closing plate 403, thereby discharging the impurities in the collection box 401.

[0033] Working principle: When the device is in use, the hot steam generated by the cement in the cement raw material grinding production line 104 enters the filtration box 101 through the steam pipe 102, is filtered through the filter screen 202, and then passes through the magnetic levitation low-temperature waste heat generator 105 for power generation, achieving the effect of waste heat recovery power generation. When the filter screen 202 is filtering, the motor 302 is continuously turned on. The motor 302 drives the first bevel gear 303, the activated carbon plate 304 and the brush 305 to rotate. The brush 305 continuously cleans the surface of the filter screen 202 to ensure a good cleaning effect. The activated carbon plate 304 absorbs harmful substances in the steam. The first bevel gear 303 drives the second bevel gear 306 to rotate. The second bevel gear 306 drives the cam 309 to rotate through the connecting shaft 307. The cam 309 is used to interact with the fixing plate 310 to push the mounting plate 201 to swing. The mounting plate 201 drives the arc plate 204 to move synchronously and compresses the spring 207 in the guide seat 206. The spring 207 will periodically release the elastic force during compression, causing the mounting plate 201 to produce a vibration effect. The mounting plate 201 swings reciprocally within a certain angle range, causing the impurities on the filter screen 202 to vibrate and fall off, further improving the overall cleaning effect of the filter screen 202. The fallen impurities will fall into the collection box 401 through the V-shaped channel 402. When the impurities in the collection box 401 accumulate to a certain extent, the staff rotates the rotating buckle 404 to open the closing plate 403, thereby discharging the impurities in the collection box 401. In this way, during the process of waste heat recovery power generation in cement production, continuous and efficient filtration operations are achieved.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtration structure for waste heat recovery power generation in cement production, comprising a filtration box (101), with openings on both sides of the filtration box (101), and an air outlet pipe (103) fixedly connected to the air outlet position of the filtration box (101), the air outlet pipe (103) being communicated to a magnetic levitation low-temperature waste heat generator (105), characterized in that: A swing mechanism is arranged inside the filter box (101). The swing mechanism includes an inclined mounting plate (201). A filter screen (202) is fixedly connected to the middle position of the mounting plate (201). A rotating shaft (203) is fixedly connected to the bottom side of the mounting plate (201). A fixed seat (205) is fixedly connected inside the filter box (101), and the rotating shaft (203) is rotatably connected to the fixed seat (205). A cleaning mechanism is arranged on the mounting plate (201), and a collecting mechanism is arranged at the bottom of the filter box (101). The cleaning mechanism includes two symmetrically arranged connecting plates (308). A connecting shaft (307) is rotatably connected to the connecting plates (308). One end of the connecting shaft (307) is fixedly connected with a cam (309). Fixed plates (310) are fixedly connected to the inner wall positions on both sides of the filter box (101). The cam (309) is used to interact with the fixed plate (310) when the connecting shaft (307) rotates, so that the impurities on the filter screen (202) vibrate and fall off.

2. The filtering structure for waste heat recovery power generation in cement production according to claim 1, wherein: An arc-shaped plate (204) is fixedly connected to the top of the mounting plate (201). A guide seat (206) is fixedly connected to the inner wall of the top of the filter box (101). The cross-section of the arc-shaped plate (204) is an arc with the rotating shaft (203) as the center of the circle. A groove matching with the arc-shaped plate (204) is opened in the guide seat (206), and a plurality of springs (207) are installed in the guide seat (206).

3. A cement production waste heat recovery power generation filtration structure according to claim 1, characterized in that: The cleaning mechanism includes a connecting frame (301). The connecting frame (301) is arranged on the side of the mounting plate (201) away from the connecting plate (308). A motor (302) is fixedly installed on the connecting frame (301). A first bevel gear (303) is fixedly connected to the output end of the motor (302). Second bevel gears (306) are meshed on both sides of the first bevel gear (303), and the second bevel gears (306) are fixedly connected to the ends of the connecting shafts (307) away from the cams (309).

4. A cement production waste heat recovery power generation filtration structure according to claim 3, characterized in that: An activated carbon plate (304) and a brush (305) are fixedly connected to the side of the output shaft of the motor (302).

5. A cement production waste heat recovery power generation filtration structure according to claim 1, characterized in that: The mounting plate (201) is inclined in a direction away from the air outlet pipe (103).

6. The filtering structure for waste heat recovery power generation in cement production according to claim 1, characterized in that: The collecting mechanism includes a collecting box (401). A V-shaped channel (402) is arranged between the collecting box (401) and the filter box (101).

7. A cement production waste heat recovery power generation filtration structure according to claim 6, characterized in that: A closing plate (403) is rotatably connected to the bottom of the collecting box (401). A rotating buckle (404) is rotatably connected to one side of the closing plate (403), and a fixed buckle (405) is fixedly connected to the side of the collecting box (401).

Images