A cement rotary kiln fuel raw coal pretreatment device

Abstract

The present invention discloses a cement rotary kiln fuel raw coal pretreatment device, which relates to the technical field of rotary kilns, and comprises a bottom plate, a rotary kiln body is arranged near one side edge of the top of the bottom plate, a combustion chamber is arranged on the outer surface of the rotary kiln body, and a proportioning component is arranged near one side edge of the top of the bottom plate. In the cement rotary kiln combustion pretreatment process, in order to reasonably proportion and mix different types of raw coal, the raw coal is first transported to a collection basket arranged on the top of a platform scale, and then another collection basket is moved upward under the action of the lever principle, thereby pulling the baffle in the chute outward, so that another raw coal placed in the second storage bin falls into the other collection basket, until the parallel plate and the mounting frame are in a parallel position, and the materials can be transported to the two collection bins respectively, and then enter the two connecting pipes, and finally enter the crushing bin for mixing.

Description

Technical Field

[0001] The invention relates to the technical field of rotary kilns, in particular to a cement rotary kiln fuel raw coal pretreatment device. Background Art

[0002] The raw coal used in cement rotary kiln refers to coal used as fuel. This type of coal plays an important role in the cement production process. Raw coal is natural coal that has not been processed, treated or refined. It usually contains coal ore and non-combustible impurities. It is one of the commonly used fuels in cement kilns. The raw coal pretreatment device in the cement rotary kiln is mainly used to process the raw coal to improve its combustion efficiency and reduce environmental impact.

[0003] Currently, raw coal is an important component of cement rotary kiln combustion raw materials. Due to the different ash contents of different raw coals, the temperature control in the rotary kiln is different. Therefore, in order to ensure the stability of the temperature in the cement rotary kiln, general cement rotary kilns will use a single type of raw coal as the combustion raw material of the rotary kiln. If this type of raw coal is out of stock, the staff will not be able to flexibly respond to emergencies, resulting in the need to adjust the production plan or waste fuel, which will affect the overall production stability.

[0004] Therefore, we propose a cement rotary kiln fuel raw coal pretreatment device to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a cement rotary kiln fuel raw coal pretreatment device to solve the problem mentioned in the background art that the raw coal used in the rotary kiln combustion is relatively single and affects the stability of cement production.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cement rotary kiln fuel raw coal pretreatment device, comprising a bottom plate, a rotary kiln body is arranged near one side edge of the top of the bottom plate, a combustion chamber is arranged on the outer surface of the rotary kiln body, a proportioning component is arranged near one side edge of the top of the bottom plate, the proportioning component comprises a mounting frame, a mixing component for mixing raw coal is arranged on the outer surface of the mounting frame, a platform scale is arranged near one side edge of the top of the mounting frame, a support frame is fixed near the center of the top of the mounting frame, and a connecting rod is fixed between the opposite inner walls of the support frame. Taking over the pipe, the outer surface of the connecting pipe is movably sleeved with a parallel plate, two supporting tubes are fixedly connected between the opposite inner walls of the parallel plates, the outer surfaces of the two supporting tubes are rotatably sleeved with an auxiliary frame, the outer surfaces of the two auxiliary frames are fixedly installed with a collecting basket, a first fixing frame is fixedly fixed on the top of the mounting frame near the front surface, a first storage bin is fixedly installed on the outer surface of the first fixing frame, a connecting block is fixedly installed on the outer surface of the first storage bin, a forward and reverse motor is arranged on the top of the connecting block, a rotating shaft is fixedly provided on the output shaft of the forward and reverse motor, and a sealing plate is fixedly sleeved on the outer surface of the rotating shaft.

[0007] Preferably, a second fixing frame is fixed to the top of the mounting frame near the rear surface, and a second storage bin is fixedly connected to the outer surface of the second fixing frame. The inner walls of the two collecting baskets are provided with slots, and hydraulic rods are arranged on the inner walls of the two slots. A movable block is fixed to one end of the two hydraulic rods, and the outer surfaces of the two movable blocks are respectively slidably connected to the inner walls of the two slots.

[0008] Preferably, a supporting frame is fixedly connected to the top of the mounting frame near the other side edge, a limiting shaft is movably embedded between the relative inner walls of the supporting frame, a gear is fixedly sleeved on the outer surface of the limiting shaft, and a gear row is meshingly connected to the outer surface of the gear.

[0009] Preferably, circular plates are fixedly installed at both ends of the limit shaft, and the surfaces of the two circular plates are rotatably connected to rotating rods through limit bolts. A sliding groove is provided on the outer surface of the second storage bin, and a baffle is slidably connected inside the sliding groove, and two anti-pressure blocks are fixed to the outer surface of the baffle.

[0010] Preferably, the bottom of the mounting frame is fixedly connected to the top of the base plate, the two ends of the rotating shaft are respectively movable and penetrate to the opposite outsides of the first storage bin, the two ends of the limiting shaft are respectively movable and penetrate to the opposite outsides of the supporting frame, one end of the two rotating rods are respectively rotatably connected to the outer surfaces of the two anti-pressure blocks by limiting bolts, and the outer surface of the tooth row is fixedly connected to the outer surface of the second storage bin.

[0011] Preferably, the mixing assembly includes a mounting plate, the bottom of the mounting plate is fixedly connected to the outer surface of the mounting frame, two cylinders are arranged on the outer surface of the mounting plate, and a moving rod is fixedly installed between one ends of the two cylinders.

[0012] Preferably, collection bins are fixed on the outer surface of the moving rod near both ends, the bottoms of the two collecting bins are fixedly connected with connecting pipes, one end of the two connecting pipes is fixedly connected with a telescopic tube, and a feeding pipe is fixedly installed between one ends of the two telescopic tubes.

[0013] Preferably, a first solenoid valve is provided on the outer surface of the feed pipe, a crushing bin is fixed on the outer surface of the mounting frame, one end of the feed pipe passes through the interior of the crushing bin, an air pump is fixedly installed on the outer surface of one side of the crushing bin near the center by screws, and the output end of the air pump is fixedly connected to an air pipe.

[0014] Preferably, a pressure sensor is arranged near the top on the outer surface of one side of the crushing bin, a driving motor is fixedly installed by screws near the top on the outer surface of the other side of the crushing bin, a first crushing roller is fixedly installed at the output end of the driving motor, and one end of the first crushing roller penetrates into the interior of the crushing bin to the inner wall.

[0015] Preferably, the outer surface of the first crushing roller is meshingly connected with the second crushing roller, and the two ends of the second crushing roller are respectively movably embedded in the relative inner walls of the crushing bin, and the bottom of the crushing bin is fixedly connected with a discharge pipe, one end of the discharge pipe passes through the interior of the combustion chamber, and a second solenoid valve is arranged on the outer surface of the discharge pipe, and a separation plate is fixedly fixed near the center between the relative inner walls of the crushing bin, and the rear surface of the crushing bin is fixedly connected with a secondary separation bin, and a pressure-resistant plate is fixedly installed on the outer surface of the secondary separation bin, and a servo motor is arranged on the top of the pressure-resistant plate, and the output shaft of the servo motor is fixedly connected with a mounting rod, and a rolling roller is fixedly sleeved on the outer surface of the mounting rod, and an inclined plate is fixedly installed on the bottom of the separation plate, and the outer surface of the inclined plate passes through the interior of the secondary separation bin.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the cement rotary kiln combustion pretreatment process, in order to reasonably proportion and mix different types of raw coal, the raw coal is first transported to the collecting basket arranged on the top of the platform scale, and then the other collecting basket is moved upward under the action of the lever principle, so that the baffle in the chute is pulled outward, so that another type of raw coal placed in the second storage bin falls into the other collecting basket until the parallel plate and the mounting frame are in a parallel position, and the materials can be transported to the two collecting bins respectively, and then enter the two connecting pipes, and finally enter the crushing bin for mixing, which solves the problem of the relatively single type of raw coal used for rotary kiln combustion in the prior art affecting the stability of cement production.

[0018] 2. After the proportioning of two different types of raw coal is completed, in order to speed up the mixing of the two raw coals, after the two materials enter the corresponding collecting bins respectively, the air pump is started to make the interior of the crushing bin in a negative pressure state. When the pressure sensor detects that the pressure in the crushing bin reaches the required value, the first solenoid valve is opened, so that the materials placed in the two collecting bins enter the interior of the two telescopic pipes through the two connecting pipes respectively under the action of the pressure difference, and finally enter the interior of the crushing bin after mixing through the feed pipe, thereby realizing the automatic proportioning and mixing of raw coal for cement rotary kiln.

[0019] 3. When the two kinds of raw coal enter the crushing bin, the driving motor is started to drive the first crushing roller and the second crushing roller to rotate relative to each other to crush the two kinds of raw coal, so that the two kinds of raw coal are crushed synchronously while mixing, so that the two different kinds of raw coal are fully mixed and the particle size after crushing is consistent. By mixing and crushing different kinds of raw coal, the combustion efficiency of the mixed raw coal is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front perspective view of a raw coal pretreatment device for cement rotary kiln fuel of the present invention;

[0021] Figure 2 It is a partial three-dimensional diagram of a proportioning component of a raw coal pretreatment device for a cement rotary kiln fuel of the present invention;

[0022] Figure 3 It is a cross-sectional perspective view of a collecting basket structure of a raw coal pretreatment device for a cement rotary kiln fuel according to the present invention;

[0023] Figure 4 It is a partially cutaway perspective view of a first storage bin of a cement rotary kiln fuel raw coal pretreatment device of the present invention;

[0024] Figure 5 It is a three-dimensional view of a support frame portion of a cement rotary kiln fuel raw coal pretreatment device of the present invention;

[0025] Figure 6It is a partially cutaway perspective view of a second storage bin of a cement rotary kiln fuel raw coal pretreatment device of the present invention;

[0026] Figure 7 This is a perspective view of the structure of a support frame of a raw coal pretreatment device for a cement rotary kiln fuel according to the present invention;

[0027] Figure 8 It is a partial three-dimensional diagram of a mixing component of a raw coal pretreatment device for a cement rotary kiln fuel of the present invention;

[0028] Fig. 9 It is a sectional perspective view of a crushing bin portion of a cement rotary kiln fuel raw coal pretreatment device of the present invention;

[0029] Fig.10 It is a three-dimensional view of the compression plate portion of a cement rotary kiln fuel raw coal pretreatment device of the present invention;

[0030] Fig.11 It is a cross-sectional perspective view of the crushing bin part of a cement rotary kiln fuel raw coal pretreatment device of the present invention from another angle;

[0031] Fig.12 This is a sectional stereoscopic view of the partial structure of the secondary separation bin of a cement rotary kiln fuel raw coal pretreatment device of the present invention.

[0032] In the figure:

[0033] 1. Bottom plate; 2. Rotary kiln body; 3. Combustion chamber; 4. Proportioning assembly; 401. Mounting frame; 402. Platform scale; 403. Support frame; 404. Connecting pipe; 405. Parallel plate; 406. Support pipe; 407. Auxiliary frame; 408. Collecting basket; 409. First fixed frame; 410. First storage bin; 411. Connecting block; 412. Forward and reverse motor; 413. Rotating shaft; 414. Sealing plate; 415. Second fixed frame; 416. Second storage bin; 417. Carrying frame; 418. Limiting shaft; 419. Gear; 420. Circular plate; 421. Rotating rod; 422. Slideway; 423. Baffle; 424. Anti-pressure block; 425. Gear row; 426. 6. Slot; 427. Hydraulic rod; 428. Movable block; 5. Mixing assembly; 501. Mounting plate; 502. Cylinder; 503. Moving rod; 504. Collecting bin; 505. Connecting pipe; 506. Telescopic pipe; 507. Feeding pipe; 508. First solenoid valve; 509. Crushing bin; 510. Air pump; 511. Air pipe; 512. Pressure sensor; 513. Driving motor; 514. First crushing roller; 515. Second crushing roller; 516. Discharging pipe; 517. Second solenoid valve; 518. Separation plate; 519. Secondary separation bin; 520. Pressure plate; 521. Servo motor; 522. Mounting rod; 523. Rolling roller; 524. Inclined plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1-12The present invention provides a technical solution: a cement rotary kiln fuel raw coal pretreatment device, comprising a bottom plate 1, a rotary kiln body 2 is arranged near one side edge of the top of the bottom plate 1, a combustion chamber 3 is arranged on the outer surface of the rotary kiln body 2, a proportioning component 4 is arranged near one side edge of the top of the bottom plate 1, the proportioning component 4 comprises a mounting frame 401, a mixing component 5 for mixing raw coal is arranged on the outer surface of the mounting frame 401, a platform scale 402 is arranged near one side edge of the top of the mounting frame 401, a support frame 403 is fixed near the center of the top of the mounting frame 401, a connecting pipe 404 is fixed between the opposite inner walls of the supporting frame 403, a parallel plate 405 is movably sleeved on the outer surface of the connecting pipe 404, and a parallel plate 405 is fixedly connected between the opposite inner walls of the parallel plate 405 Two support tubes 406, the outer surfaces of the two support tubes 406 are both rotatably sleeved with auxiliary frames 407, the outer surfaces of the two auxiliary frames 407 are both fixedly installed with collection baskets 408, the top of the mounting frame 401 is fixed with a first fixing frame 409 near the front surface, the outer surface of the first fixing frame 409 is fixedly installed with a first storage bin 410, the outer surface of the first storage bin 410 is fixedly installed with a connecting block 411, the top of the connecting block 411 is provided with a forward and reverse motor 412, the output shaft of the forward and reverse motor 412 is fixed with a rotating shaft 413, the outer surface of the rotating shaft 413 is fixedly sleeved with a sealing plate 414, the top of the mounting frame 401 is fixed with a second fixing frame 415 near the rear surface, the outer surface of the second fixing frame 415 is fixedly connected with a second storage bin 416, the two A card slot 426 is provided on the inner wall of each collecting basket 408, and a hydraulic rod 427 is provided on the inner wall of the two card slots 426. A movable block 428 is fixed at one end of the two hydraulic rods 427. The outer surfaces of the two movable blocks 428 are slidably connected to the inner walls of the two card slots 426 respectively. A supporting frame 417 is fixedly connected to the top of the mounting frame 401 near the other side edge. A limiting shaft 418 is movably embedded between the relative inner walls of the supporting frame 417. A gear 419 is fixedly sleeved on the outer surface of the limiting shaft 418. The outer surface of the gear 419 is meshed with a tooth row 425. Circular plates 420 are fixedly installed at both ends of the limiting shaft 418. The surfaces of the two circular plates 420 are rotatably connected to the rotating rod 421 through limiting bolts. A slide groove 422 is provided, and a baffle plate 423 is slidably connected inside the slide groove 422. Two anti-pressure blocks 424 are fixed on the outer surface of the baffle plate 423. The bottom of the mounting frame 401 is fixedly connected to the top of the bottom plate 1. The two ends of the rotating shaft 413 are respectively movable and penetrated to the opposite outer sides of the first storage bin 410. The two ends of the limiting shaft 418 are respectively movable and penetrated to the opposite outer sides of the supporting frame 417. One end of the two rotating rods 421 is respectively rotatably connected to the outer surfaces of the two anti-pressure blocks 424 through limiting bolts. The outer surface of the tooth row 425 is fixedly connected to the outer surface of the second storage bin 416. The mixing component 5 includes a mounting plate 501. The bottom of the mounting plate 501 is fixedly connected to the outer surface of the mounting frame 401. Two cylinders 502 are arranged on the outer surface of the mounting plate 501.A moving rod 503 is fixedly installed between one ends of the two cylinders 502, and collecting bins 504 are fixedly installed on the outer surface of the moving rod 503 near both ends. A connecting pipe 505 is fixedly connected to the bottom of the two collecting bins 504, and one end of the two connecting pipes 505 is fixedly connected to a telescopic tube 506, and a feeding pipe 507 is fixedly installed between one ends of the two telescopic tubes 506. A first solenoid valve 508 is arranged on the outer surface of the feeding pipe 507, and a crushing bin 509 is fixedly installed on the outer surface of the mounting frame 401, and one end of the feeding pipe 507 penetrates into the crushing bin 509. An air pump 510 is fixedly installed on the outer surface of one side of the crushing bin 509 near the center by screws, and an output end of the air pump 510 is fixedly connected to an air pipe 511, a pressure sensor 512 is arranged on the outer surface of one side of the crushing bin 509 near the top, and a driving motor 513 is fixedly installed on the outer surface of the other side of the crushing bin 509 near the top by screws, and a first crushing roller 514 is fixedly installed on the output end of the driving motor 513. One end of a crushing roller 514 penetrates the interior of the crushing chamber 509 to the inner wall, the outer surface of the first crushing roller 514 is meshed with a second crushing roller 515, and the two ends of the second crushing roller 515 are respectively movably embedded in the opposite inner walls of the crushing chamber 509. The bottom of the crushing chamber 509 is fixedly connected with a discharge pipe 516, one end of the discharge pipe 516 penetrates the interior of the combustion chamber 3, and a second electromagnetic valve 517 is arranged on the outer surface of the discharge pipe 516. The second electromagnetic valve 517 is fixed near the center between the opposite inner walls of the crushing chamber 509. There is a separation plate 518, the rear surface of the crushing chamber 509 is fixedly connected to the secondary separation chamber 519, the outer surface of the secondary separation chamber 519 is fixedly installed with a pressure plate 520, the top of the pressure plate 520 is provided with a servo motor 521, the output shaft of the servo motor 521 is fixedly connected with a mounting rod 522, the outer surface of the mounting rod 522 is fixedly sleeved with a rolling roller 523, the bottom of the separation plate 518 is fixedly installed with an inclined plate 524, and the outer surface of the inclined plate 524 penetrates into the interior of the secondary separation chamber 519.

[0036] In this embodiment, during the cement rotary kiln combustion pretreatment process, in order to reasonably proportion and mix different types of raw coal, firstly, two collecting baskets 408 are respectively arranged at the bottom of the first storage bin 410 and the second storage bin 416, and the distances between the two collecting baskets 408 and the connection point between the parallel plate 405 and the connecting pipe 404 match the mass ratio of the two different raw coals. In addition, the distance between the collecting basket 408 arranged at the bottom of the second storage bin 416 and the connection point between the parallel plate 405 and the connecting pipe 404 is greater than or equal to the distance between the collecting basket 408 arranged at the top of the platform scale 402 and the parallel plate 405 and the connecting pipe 404. Then, the forward and reverse motors 412 are started to drive the rotating shaft 413 to rotate, thereby driving the sealing plate 414 to rotate. When the outer surface of the sealing plate 414 is separated from the inner wall of the first storage bin 410, the material placed in the first storage bin 410 can be transported downward to the inside of the corresponding collecting basket 408, so that the collecting basket 408 moves downward under the action of its own gravity. Figure 3 As shown in the figure, through the action of the support tube 406, the auxiliary frame 407 is kept vertically downward during the downward movement, so that the collection basket 408 is kept vertically with the top of the mounting frame 401 during the downward movement. When the bottom surface of the collection basket 408 contacts the top of the platform scale 402, the weight of the collection basket 408 can be measured. When the platform scale 402 measures that the weight of the collection basket 408 reaches the required weight, a signal is transmitted to the external control system, and the forward and reverse motor 412 is started again through the external control system to drive the sealing plate 414 to rotate in the opposite direction, so that the inner surface of the sealing plate 414 is The wall is in full contact with the outer surface of the first storage bin 410, so that the bottom of the first storage bin 410 can be sealed. At the same time, during the downward movement of the collection basket 408, according to the lever principle, the other collection basket 408 corresponding thereto moves upward, thereby driving the gear row 425 to move upward, and then driving the gear 419 to rotate. During the rotation of the gear 419, the two circular plates 420 are driven to rotate. The rotation of the two circular plates 420 drives one end of the rotating rod 421 to rotate, thereby driving the other end of the rotating rod 421 to be subjected to the force to pull the baffle 423 limited in the slide groove 422 outward, wherein, as Figure 6-Figure 7As shown, a plurality of rollers are arranged at the bottom of the baffle 423, and the relative inner walls of the slide groove 422 are all provided with strip grooves for limiting the rollers, the purpose of which is to further facilitate the movement of the baffle 423. When the outer surface of the baffle 423 is separated from the inner wall of the second storage bin 416, the other raw coal placed in the second storage bin 416 moves downward under the action of its own gravity and falls into the corresponding collection basket 408. When the weight of the material in the collection basket 408 matches the weight of the material in the other collection basket 408, it moves downward under the action of its own gravity, thereby driving the gear row 425 to move downward, thereby driving the gear 419 to rotate in the opposite direction, so that the circular plate 420 rotates in the opposite direction. The baffle plate 423 is rotated in the direction of rotation, thereby driving the baffle plate 423 to move toward the inside of the slide groove 422. When the outer surface of the baffle plate 423 is inserted into the slide groove 422, the parallel plate 405 is in a state parallel to the top of the mounting frame 401, so that the material ratio in the two collecting baskets 408 reaches the standard value, and then the two cylinders 502 can be started to shorten it, driving the moving rod 503 to move toward the bottom of the collecting basket 408, thereby driving the two collecting bins 504 to move toward the bottom of the collecting basket 408, thereby extending the two telescopic tubes 506. When the two collecting bins 504 move to the bottom of the two collecting baskets 408 respectively, the two hydraulic rods 427 are respectively started through the external control system to shorten them, thereby driving The two movable blocks 428 are respectively moved toward the inner wall away from the collecting basket 408, so that the raw coal placed in the two collecting baskets 408 moves downward along the inclined plate at the bottom of the collecting basket 408 and enters the interior of the two collecting bins 504 respectively. At the same time, the air pump 510 is started to extract gas into the crushing bin 509, so that the interior of the crushing bin 509 is in a negative pressure state. When the pressure sensor 512 detects that the pressure in the crushing bin 509 reaches the required value, the core function of the pressure sensor 512 is to convert the pressure change into an electrical signal. The principle that resistance changes with pressure is used. There is a piezoresistive material inside the sensor. Its resistance value changes under the action of pressure, thereby generating an electric The first electromagnetic valve 508 is opened to measure the pressure change in the crushing bin 509, so that the materials placed in the two collecting bins 504 enter the two telescopic tubes 506 through the two connecting pipes 505 respectively under the action of the pressure difference, and finally enter the crushing bin 509 after being mixed through the feeding pipe 507, thereby realizing the automatic proportioning and mixing of raw coal for cement rotary kiln. By mixing and proportioning different types of raw coal in a certain proportion, the raw coal combustion in the rotary kiln can be adjusted according to market fluctuations or supply conditions, thereby improving the flexibility and adaptability of production, and solving the problem that the raw coal type used for rotary kiln combustion in the prior art is relatively single and affects the stability of cement production.

[0037] Embodiment 2: Figure 1 and Figure 8-12As shown, the mixing assembly 5 includes a mounting plate 501, the bottom of the mounting plate 501 is fixedly connected to the outer surface of the mounting frame 401, two cylinders 502 are arranged on the outer surface of the mounting plate 501, a moving rod 503 is fixedly installed between one ends of the two cylinders 502, and a collecting bin 504 is fixed near both ends of the outer surface of the moving rod 503, the bottoms of the two collecting bins 504 are fixedly connected with a connecting pipe 505, one end of the two connecting pipes 505 is fixedly connected with a telescopic pipe 506, and one end of the two telescopic pipes 506 is fixedly installed between one end of the two telescopic pipes 506. A feed pipe 507 is provided, and a first solenoid valve 508 is provided on the outer surface of the feed pipe 507. A crushing bin 509 is fixed on the outer surface of the mounting frame 401. One end of the feed pipe 507 penetrates into the crushing bin 509. An air pump 510 is fixedly installed near the center of the outer surface of one side of the crushing bin 509 by screws. An air pipe 511 is fixedly connected to the output end of the air pump 510. A pressure sensor 512 is provided near the top of the outer surface of one side of the crushing bin 509. A driving electric motor 512 is fixedly installed near the top of the outer surface of the other side of the crushing bin 509 by screws. The output end of the driving motor 513 is fixedly installed with a first crushing roller 514, one end of the first crushing roller 514 penetrates into the inner wall of the crushing bin 509, the outer surface of the first crushing roller 514 is meshedly connected with a second crushing roller 515, the two ends of the second crushing roller 515 are respectively movably embedded in the opposite inner walls of the crushing bin 509, the bottom of the crushing bin 509 is fixedly connected with a discharge pipe 516, one end of the discharge pipe 516 penetrates into the interior of the combustion chamber 3, the outer surface of the discharge pipe 516 is provided with a second electromagnetic valve 517, and the crushing bin 509 is provided with a second electromagnetic valve 518. A separation plate 518 is fixed near the center between the relative inner walls of 09, and a secondary separation bin 519 is fixedly connected to the rear surface of the crushing bin 509. A pressure-resistant plate 520 is fixedly installed on the outer surface of the secondary separation bin 519. A servo motor 521 is arranged on the top of the pressure-resistant plate 520. The output shaft of the servo motor 521 is fixedly connected to a mounting rod 522. A rolling roller 523 is fixedly sleeved on the outer surface of the mounting rod 522. An inclined plate 524 is fixedly installed on the bottom of the separation plate 518, and the outer surface of the inclined plate 524 passes through the interior of the secondary separation bin 519.

[0038] In this embodiment, after the two different types of raw coal enter the crushing bin 509 under the action of negative pressure, the driving motor 513 is started to drive the first crushing roller 514 connected thereto to rotate, and then drive the second crushing roller 515 to rotate in the opposite direction, so as to crush the two types of raw coal entering the crushing bin 509, so that the two types of raw coal are crushed synchronously while mixing, and the crushed raw coal falls to the top of the separation plate 518 under the action of its own gravity, as shown in FIG. Figure 1As shown, the separation plate 518 is inclined and has a plurality of small holes on its surface, the purpose of which is to facilitate the raw coal with qualified particle size to fall to the bottom of the crushing bin 509 through the small holes, and the material that is not completely crushed continues to move downward along the inclined surface, and moves to the bottom of the rolling roller 523 through the inclined plate 524. At the same time, the servo motor 521 is started to drive the mounting rod 522 to rotate, and then drives the rolling roller 523 to rotate, so that the raw coal that is not crushed is crushed for the second time, and the crushed raw coal continues to move downward through the inclined plate 524, falls to the inside of the secondary separation bin 519, and finally moves along the inclined plate 524 as shown in FIG. Fig.11 As shown, the inclined surface of the inner bottom surface of the secondary separation bin 519 slides down to the inner bottom surface of the crushing bin 509, so that the two different raw coals are fully mixed and the particle size after crushing is consistent. When the raw coal mixing and crushing is completed, the second solenoid valve 517 is opened, so that the mixed and crushed raw coal enters the interior of the combustion chamber 3 through the discharge pipe 516, so as to be used for the later operation of the rotary kiln body 2. By mixing and crushing different types of raw coal, the combustion efficiency of the mixed raw coal is further improved.

[0039] The use method and working principle of the device: In the cement rotary kiln combustion pretreatment process, in order to reasonably proportion and mix different types of raw coal, firstly, two collecting baskets 408 are respectively arranged at the bottom of the first storage bin 410 and the second storage bin 416, and the distances between the two collecting baskets 408 and the connection between the parallel plate 405 and the connecting pipe 404 match the mass proportions of the two different raw coals. In addition, the distance between the collecting basket 408 arranged at the bottom of the second storage bin 416 and the connection between the parallel plate 405 and the connecting pipe 404 is greater than or equal to the distance between the collecting basket 408 arranged at the top of the platform scale 402 and the parallel plate 405 and the connecting pipe 404. Then, the forward and reverse motors 412 are started to drive the rotating shaft 413 to rotate, thereby driving the sealing plate 4 14 rotates, and when the outer surface of the sealing plate 414 is separated from the inner wall of the first storage bin 410, the materials placed in the first storage bin 410 can be transported downward to the inside of the corresponding collection basket 408, so that the collection basket 408 moves downward under the action of its own gravity, so that the collection basket 408 remains vertical to the top of the mounting frame 401 during the downward movement. When the bottom surface of the collection basket 408 contacts the top of the platform scale 402, the weight of the collection basket 408 can be measured. When the platform scale 402 measures that the weight of the collection basket 408 reaches the required weight, a signal is transmitted to the external control system, and the forward and reverse motors 412 are started again through the external control system to drive the sealing plate 414 to rotate in the opposite direction, so that the sealing The inner wall of the plate 414 is in full contact with the outer surface of the first storage bin 410, so that the bottom of the first storage bin 410 can be sealed. At the same time, in the process of the collection basket 408 moving downward, the other collection basket 408 corresponding to it moves upward, thereby driving the gear row 425 to move upward, and then driving the gear 419 to rotate. In the process of the rotation of the gear 419, the two circular plates 420 are driven to rotate. The rotation of the two circular plates 420 drives one end of the rotating rod 421 to rotate, thereby driving the other end of the rotating rod 421 to be subjected to the force to pull the baffle 423 limited in the slide groove 422 outward. When the outer surface of the baffle 423 is separated from the inner wall of the second storage bin 416, the other raw coal placed in the second storage bin 416 is pulled outward under its own weight. When the weight of the material in the collection basket 408 matches that in the other collection basket 408, the material will move downward under the action of its own gravity, thereby driving the gear row 425 to move downward, thereby driving the gear 419 to rotate in the opposite direction, causing the circular plate 420 to rotate in the opposite direction, thereby driving the baffle plate 423 to move toward the inside of the chute 422. When the outer surface of the baffle plate 423 is inserted into the chute 422, the parallel plate 405 is in a state parallel to the top of the mounting frame 401, thereby making the material ratio in the two collection baskets 408 reach the standard value, and then the two cylinders 502 can be started to shorten them, driving the moving rod 503 to move toward the bottom of the collection basket 408.The two collecting bins 504 are then driven to move toward the bottom of the collecting basket 408, thereby extending the two telescopic tubes 506. When the two collecting bins 504 move to the bottom of the two collecting baskets 408, the two hydraulic rods 427 are respectively started through the external control system to shorten them, thereby driving the two movable blocks 428 to move away from the inner wall of the collecting basket 408, so that the raw coal placed in the two collecting baskets 408 move downward along the inclined plate at the bottom of the collecting basket 408, and enter the interior of the two collecting bins 504 respectively. At the same time, the air pump 510 is started to extract gas into the crushing bin 509, so that the interior of the crushing bin 509 is in a negative pressure state. When the pressure sensor 512 detects that the pressure in the crushing bin 509 reaches the required value, the first solenoid valve 508 is opened, so that the raw coal placed in the two collecting bins 504 Under the action of pressure difference, the materials enter the interior of the two telescopic tubes 506 through the two connecting pipes 505 respectively, and finally enter the interior of the crushing bin 509 after being mixed through the feeding pipe 507, thereby realizing the automatic proportioning and mixing of raw coal for the cement rotary kiln. By mixing and batching different types of raw coal in a certain proportion, the raw coal combustion in the rotary kiln can be adjusted according to market fluctuations or supply conditions. When two different types of raw coal enter the crushing bin 509 under the action of negative pressure, the driving motor 513 is started to drive the first crushing roller 514 connected thereto to rotate, and then drive the second crushing roller 515 to rotate in the opposite direction, so that the two types of raw coal entering the crushing bin 509 are crushed, so that the two types of raw coal are crushed synchronously while mixing, and the crushed raw coal falls to the top of the separation plate 518 under the action of its own gravity, such as, Figure 1 As shown in the figure, the separation plate 518 is inclined and has a plurality of small holes on its surface. The materials that are not completely crushed continue to move downward along the inclined surface and move to the bottom of the rolling roller 523 through the inclined plate 524. At the same time, the servo motor 521 is started to drive the mounting rod 522 to rotate, thereby driving the rolling roller 523 to rotate, so that the raw coal that is not crushed is crushed for the second time. The crushed raw coal continues to move downward through the inclined plate 524 and falls into the interior of the secondary separation bin 519, and finally moves along the inclined plate 524 to the bottom of the secondary separation bin 519. Fig.11 The inclined surface of the inner bottom surface of the secondary separation bin 519 slides down to the inner bottom surface of the crushing bin 509, so that the two different raw coals are fully mixed and the particle size after crushing is consistent. When the raw coal mixing and crushing is completed, the second solenoid valve 517 is opened, so that the mixed and crushed raw coal enters the combustion chamber 3 through the discharge pipe 516, so as to be used for the later operation of the rotary kiln body 2.

[0040] The wiring diagram of the rotary kiln body 2, the forward and reverse motor 412, the hydraulic rod 427, the cylinder 502, the first solenoid valve 508, the air pump 510, the pressure sensor 512, the drive motor 513, the second solenoid valve 517 and the servo motor 521 in the present invention belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the rotary kiln body 2, the forward and reverse motor 412, the hydraulic rod 427, the cylinder 502, the first solenoid valve 508, the air pump 510, the pressure sensor 512, the drive motor 513, the second solenoid valve 517 and the servo motor 521 are no longer explained in detail.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cement rotary kiln fuel raw coal pretreatment device, comprising a bottom plate (1), a rotary kiln body (2) is arranged near one side edge of the top of the bottom plate (1), a combustion chamber (3) is arranged on the outer surface of the rotary kiln body (2), a proportioning component (4) is arranged near one side edge of the top of the bottom plate (1), the proportioning component (4) comprises a mounting frame (401), and a mixing component (5) for mixing raw coal is arranged on the outer surface of the mounting frame (401); Features: A platform scale (402) is arranged near one side edge of the top of the mounting frame (401), a support frame (403) is fixed near the center of the top of the mounting frame (401), a connecting pipe (404) is fixed between opposite inner walls of the supporting frame (403), a parallel plate (405) is movably sleeved on the outer surface of the connecting pipe (404), two support pipes (406) are fixedly connected between opposite inner walls of the parallel plates (405), and auxiliary frames (407) are rotatably sleeved on the outer surfaces of the two support pipes (406), and the two auxiliary frames (407) are rotatably sleeved on the outer surfaces of the two support pipes (406). 7) are fixedly mounted with a collecting basket (408), a first fixing frame (409) is fixedly mounted on the top of the mounting frame (401) near the front surface, a first storage bin (410) is fixedly mounted on the outer surface of the first fixing frame (409), a connecting block (411) is fixedly mounted on the outer surface of the first storage bin (410), a forward and reverse motor (412) is arranged on the top of the connecting block (411), a rotating shaft (413) is fixedly mounted on the output shaft of the forward and reverse motor (412), and a sealing plate (414) is fixedly mounted on the outer surface of the rotating shaft (413); Then, the forward and reverse motor (412) is started to drive the rotating shaft (413) to rotate, thereby driving the sealing plate (414) to rotate. When the outer surface of the sealing plate (414) is separated from the inner wall of the first storage bin (410), the material placed in the first storage bin (410) can be transported downward to the inside of the corresponding collection basket (408).

2. The cement rotary kiln fuel raw coal pretreatment device according to claim 1, characterized in that: A second fixing frame (415) is fixed to the top of the mounting frame (401) near the rear surface, and a second storage bin (416) is fixedly connected to the outer surface of the second fixing frame (415). The inner walls of the two collecting baskets (408) are provided with a card slot (426), and the inner walls of the two card slots (426) are provided with a hydraulic rod (427). A movable block (428) is fixed to one end of the two hydraulic rods (427), and the outer surfaces of the two movable blocks (428) are respectively slidably connected to the inner walls of the two card slots (426).

3. The cement rotary kiln fuel raw coal pretreatment device according to claim 2, characterized in that: A support frame (417) is fixedly connected to the top of the mounting frame (401) near the other side edge, a limiting shaft (418) is movably embedded between the opposite inner walls of the supporting frame (417), a gear (419) is fixedly sleeved on the outer surface of the limiting shaft (418), and a gear row (425) is meshingly connected to the outer surface of the gear (419).

4. The cement rotary kiln fuel raw coal pretreatment device according to claim 3 is characterized in that: Circular plates (420) are fixedly mounted at both ends of the limiting shaft (418), and the surfaces of the two circular plates (420) are rotatably connected to rotating rods (421) via limiting bolts. A sliding groove (422) is provided on the outer surface of the second storage bin (416), and a baffle (423) is slidably connected inside the sliding groove (422), and two anti-pressure blocks (424) are fixed to the outer surface of the baffle (423).

5. The device for pre-treating raw coal for cement rotary kiln fuel according to claim 4, characterized in that: The bottom of the mounting frame (401) is fixedly connected to the top of the bottom plate (1), the two ends of the rotating shaft (413) are respectively movable and penetrate to the opposite outer sides of the first storage bin (410), the two ends of the limiting shaft (418) are respectively movable and penetrate to the opposite outer sides of the supporting frame (417), one end of the two rotating rods (421) are respectively rotatably connected to the outer surfaces of the two anti-pressure blocks (424) through limiting bolts, and the outer surface of the gear row (425) is fixedly connected to the outer surface of the second storage bin (416).

6. The device for pre-treating raw coal for cement rotary kiln fuel according to claim 5, characterized in that: The mixing assembly (5) comprises a mounting plate (501), the bottom of the mounting plate (501) being fixedly connected to the outer surface of the mounting frame (401), two cylinders (502) being arranged on the outer surface of the mounting plate (501), and a moving rod (503) being fixedly mounted between one ends of the two cylinders (502).

7. The device for pre-treating raw coal for cement rotary kiln fuel according to claim 6, characterized in that: Collection bins (504) are fixed to the outer surface of the moving rod (503) near both ends, the bottoms of the two collecting bins (504) are fixedly connected to connecting pipes (505), one end of the two connecting pipes (505) is fixedly connected to a telescopic pipe (506), and a feeding pipe (507) is fixedly installed between one ends of the two telescopic pipes (506).

8. The device for pre-treating raw coal for cement rotary kiln fuel according to claim 7, characterized in that: A first solenoid valve (508) is provided on the outer surface of the feed pipe (507); a crushing bin (509) is fixed to the outer surface of the mounting frame (401); one end of the feed pipe (507) penetrates into the crushing bin (509); an air pump (510) is fixedly mounted on the outer surface of one side of the crushing bin (509) near the center thereof by means of screws; an output end of the air pump (510) is fixedly connected to an air pipe (511).

9. The device for pre-treating raw coal for cement rotary kiln fuel according to claim 8, characterized in that: A pressure sensor (512) is provided on the outer surface of one side of the crushing bin (509) near the top, and a drive motor (513) is fixedly mounted on the outer surface of the other side of the crushing bin (509) near the top by means of screws, and a first crushing roller (514) is fixedly mounted on the output end of the drive motor (513), and one end of the first crushing roller (514) penetrates the interior of the crushing bin (509) to the inner wall.

10. The device for pre-treating raw coal for cement rotary kiln fuel according to claim 9, characterized in that: The outer surface of the first crushing roller (514) is meshingly connected with a second crushing roller (515), and the two ends of the second crushing roller (515) are respectively movably embedded in the opposite inner walls of the crushing bin (509). A discharge pipe (516) is fixedly connected to the bottom of the crushing bin (509), and one end of the discharge pipe (516) penetrates into the interior of the combustion chamber (3). A second solenoid valve (517) is arranged on the outer surface of the discharge pipe (516). A separation plate (518) is fixed between the opposite inner walls of the crushing bin (509) near the center. 9) is fixedly connected to a secondary separation bin (519) on its rear surface, a pressure-resistant plate (520) is fixedly installed on the outer surface of the secondary separation bin (519), a servo motor (521) is arranged on the top of the pressure-resistant plate (520), an output shaft of the servo motor (521) is fixedly connected to a mounting rod (522), a rolling roller (523) is fixedly sleeved on the outer surface of the mounting rod (522), an inclined plate (524) is fixedly installed on the bottom of the separation plate (518), and the outer surface of the inclined plate (524) passes through the interior of the secondary separation bin (519).

Images