Solid waste fuel preparation device capable of replacing cement kiln pulverized coal fuel

Abstract

The invention relates to the technical field of solid waste recycling, and discloses a solid waste fuel preparation device capable of replacing cement kiln pulverized coal fuel, the solid waste fuel preparation device comprises two groups of supporting seats which are symmetrically distributed at the bottom of a screening outer cylinder, the screening outer cylinder is slightly inclined, and a magnetic separation inner cylinder is rotatably arranged in the screening outer cylinder; the outer side of the magnetic separation inner cylinder is connected with the inner wall of the screening outer cylinder through two sets of inner bearings, and the outer side of the magnetic separation inner cylinder is sleeved with a large gear. According to the invention, the cam part is designed, on one hand, the moving cam part also enables the fuel rod to be forced to turn over under the action of a cam, so that the fuel rod in the gluing groove can be turned over and glued at the same time, and the gluing uniformity is improved; and on the other hand, the cam part is in contact with a sliding head below the cam part in the downward movement process, extrusion acting force is generated to enable a telescopic column to retract, a pressure plug is driven to move in a hydraulic cavity, and the adhesive enters two sets of adhesive spraying pipes and is sprayed outwards from the flower umbrella head, so that the adhesive is uniformly sprayed to the area of the adhesive coating part.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solid waste recycling, in particular to a solid waste fuel preparation device capable of replacing coal powder fuel of a cement kiln. BACKGROUND

[0002] According to the Action Plan for Energy Conservation and Carbon Reduction in 2024-2025, the proportion of non-fossil energy consumption of industrial units above designated size will reach about 18.9% in 2024, about 20% in 2025, and about 25% in 2030. The promotion of alternative fuel technology in the cement industry has become an important task. Currently, the actual coal calorific value used in the cement industry in China is between 21-23 MJ / kg, and the fuel cost accounts for nearly 40% of the total cost. The carbon emissions from fuel account for 35% of the carbon emissions from cement production. Therefore, the application of alternative fuels can significantly reduce the production cost of cement and the pressure of carbon emissions compliance. The industrial solid waste SRF (Solid Recovered Fuel) technology is a solution that converts industrial solid waste into high-calorific-value alternative fuels (mainly including discarded leather scraps, tires, and discarded cloth scraps), which has become an important path for enterprises to reduce carbon emissions and resource recycling worldwide.

[0003] The existing industrial solid waste SRF preparation device has many technical problems in use. First, the magnetic separation effect of the fuel is not sufficient, which causes the metal impurities to easily damage the briquetting machine during compression and increases the looseness of the fuel rod. Second, after the fuel rod is cut into sections, it is generally transported outward by a disc conveyor. During the unloading process, the fuel rod will collide with the disc, and during the transportation process, the fuel rods will collide with each other, which will cause the fuel rod to locally crack and loosen, reducing the compression molding quality. Third, during the operation of the briquetting machine, impurities are easily adhered to the inner surface of the ring die roller and the outer surface of the two sets of rollers due to the pressure effect. Over time, residues will form. The commonly used method is to install a cleaning device on the outside of the ring die roller and the two sets of rollers, but this will cause the structure of the equipment to be complex, the volume to be large, and the production and use costs to be high.

[0004] In view of the above, considering that the existing facilities cannot meet the working use requirements, we propose a solid waste fuel preparation device capable of replacing coal powder fuel of a cement kiln. SUMMARY

[0005] The main purpose of the present application is to provide a solid waste fuel preparation device capable of replacing coal powder fuel of a cement kiln, which can effectively solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: The application discloses a solid waste fuel preparation device capable of replacing cement kiln pulverized coal fuel.

[0007] As a preferred scheme of the solid waste fuel preparation device capable of replacing cement kiln pulverized coal fuel, the outer surface of the magnetic separation inner cylinder is uniformly provided with a plurality of groups of energized electromagnets, the number of the energized electromagnets is preferably 8-20 groups, a plurality of groups of discharge ports are formed in the inner part of the magnetic separation inner cylinder, the number of the discharge ports is preferably 6-16 groups, a discharge valve is installed on each group of the discharge ports, a material collecting box is connected to the bottom of the screening outer cylinder, two groups of impurity removal pipes are symmetrically installed at the lower end of the material collecting box, a feeding port is arranged at the left end of the magnetic separation inner cylinder, and a discharging port is arranged at the right end of the magnetic separation inner cylinder.

[0008] As a preferred scheme of the solid waste fuel preparation device capable of replacing cement kiln pulverized coal fuel, a material suction cover is installed on the discharging port, a material suction pipe is connected to the outside of the material suction cover, a material suction motor base is arranged at the end of the material suction pipe away from the material suction cover, a material suction motor is installed at the upper part of the inside of the material suction motor base, a feeding pipe is connected to the end of the material suction motor base away from the material suction pipe, and the feeding pipe extends horizontally into the inside of the ring die roller compactor.

[0009] As a preferred scheme of the solid waste fuel preparation device capable of replacing cement kiln pulverized coal fuel, a base is arranged at the lower end of the ring die roller compactor, a ring die roller is rotatably arranged at the middle position in the inside of the ring die roller compactor, a driving structure for the ring die roller is arranged in the base, a plurality of groups of extrusion holes are uniformly formed in the ring die roller, two groups of rollers are symmetrically arranged at the inner side of the ring die roller, a plurality of groups of pressing blocks are uniformly arranged on the rollers, extrusion gaps are formed between the two groups of rollers and the ring die roller respectively, and a first cutter and a second cutter are fixed on the ring die roller compactor and act on the outer side of the ring die roller respectively, so that the first cutter and the second cutter form a compressed bar.

[0010] As a kind of preferred scheme of the preparation device of the solid waste fuel of the cement kiln coal powder fuel alternative of the application, wherein: the outer side of the first cutter and the second cutter is provided with guide chute, the upper surface of the guide chute is uniformly provided with several groups of landslide acting on compressed bar, the number of the landslide is preferably 2-4 groups, the lower end of the guide chute is connected with horizontal distributor, the upper end surface of the horizontal distributor is provided with feeding buffer platform, the upper end surface of the horizontal distributor and the both sides of feeding buffer platform are provided with limiting side baffle, the number of the limiting side baffle is 2 groups, the middle part of the feeding buffer platform extends to the inside of horizontal distributor and is provided with strip movable groove, the strip movable groove is provided with step feeder.

[0011] As a kind of preferred scheme of the preparation device of the solid waste fuel of the cement kiln coal powder fuel alternative of the application, wherein: the step feeder includes feeding plate, rubber push block, connecting arm, special-shaped connecting rod, crank arm and drive shaft and first positioning seat, the upper end of the feeding plate is equidistantly provided with rubber push block extending out of strip movable groove, the number of the rubber push block is preferably 4-8 groups, the rubber push block acts on the compressed bar of feeding buffer platform, the lower end of the feeding plate is symmetrically connected with two groups of connecting arms, two groups of the connecting arms are respectively hinged with the middle part of special-shaped connecting rod, the right end of the special-shaped connecting rod is hinged with second crank arm, the crank arm is sleeved with drive shaft, the drive shaft is rotationally arranged in first positioning seat and extends outward.

[0012] As a kind of preferred scheme of the preparation device of the solid waste fuel of the cement kiln coal powder fuel alternative of the application, wherein: the step feeder further includes first sprocket, first chain, second servo motor, swing arm and second positioning seat, the end of the drive shaft away from crank arm is sleeved in first sprocket, two groups of the first sprocket are connected by first chain, one group of the drive shaft is connected with second servo motor by shaft coupling, the second servo motor is horizontally arranged outside horizontal distributor, the left end of the crank arm is hinged with swing arm, the upper end of the swing arm is rotationally arranged on second positioning seat, the first positioning seat and the second positioning seat are riveted in the inside of horizontal distributor.

[0013] As a preferred embodiment of the solid waste fuel preparation device that can replace pulverized coal fuel in cement kilns according to the present invention, wherein: the left ends of both sets of horizontal feeders are connected to annular glue applicators, the upper end of the annular glue applicator is provided with an automatic discharge port that docks with the feeding buffer table, the lower end of the annular glue applicator is provided with a discharge channel for releasing compressed bar material, the inner wall of the annular glue applicator is provided with a bonding wheel that rotates against the wall, and the two end faces of the bonding wheel are welded with a wheel axle, each set of wheel axles is connected to the inner wall of the annular glue applicator by an outer bearing seat, the two sets of wheel axles extend out of the annular glue applicator and are fitted with a second sprocket, the two sets of second sprockets are connected by a second chain for transmission, one set of wheel axles is connected to a third servo motor through a coupling, and the third servo motor is horizontally mounted on the outside of the annular glue applicator.

[0014] As a preferred embodiment of the solid waste fuel preparation device that can replace pulverized coal fuel in cement kilns according to the present invention, the bonding wheel has several sets of adhesive grooves evenly distributed on its surface, preferably 4-8 sets. A curved limiting sleeve is symmetrically arranged at the bottom of each adhesive groove. A rotating roller is rotatably arranged inside the curved limiting sleeve. The outer surface of the rotating roller is covered with an adhesive coating part, a portion of which extends into the adhesive groove and interacts with the compressed bar material. Two sets of cam parts are symmetrically arranged on the outer surface of the rotating roller. Roller seats fixed inside the bonding wheel are provided at both ends of the rotating roller, and a roller motor is installed in one set of the roller seats.

[0015] As a preferred embodiment of the solid waste fuel preparation device that can replace pulverized coal fuel in cement kilns according to the present invention, wherein: a preheating adhesive storage box is fixed in the middle of the inside of the bonding wheel, the preheating adhesive storage box contains adhesive, a pressure pump is provided on the inner side of the preheating adhesive storage box, the pressure pump is connected to the inside of the preheating adhesive storage box by two sets of pressure pipes, several sets of adhesive supply pipes are evenly installed on the outer periphery of the preheating adhesive storage box, a first check valve is installed on the adhesive supply pipe, a pressure device is connected to the end of each set of adhesive supply pipes, the number of pressure devices is preferably 4-8 sets, two sets of adhesive spraying pipes are symmetrically connected to the outside of the pressure devices, a second check valve is installed on the adhesive spraying pipe, and a flower umbrella head acting on the adhesive coating part is installed at the end of the adhesive spraying pipe.

[0016] As a preferred embodiment of the solid waste fuel preparation device that can replace pulverized coal fuel in cement kilns according to the present invention, the pressure device includes an outer tank, a hydraulic chamber, a telescopic column, a slider, a pressure plug, and a return spring. The outer tank is fixed inside the fitting wheel. A hydraulic chamber is provided inside the outer tank. A telescopic column is movably arranged outward inside the hydraulic chamber. A slider that acts on a cam is provided at one end of the telescopic column. A pressure plug that slides and seals against the chamber wall is installed at the other end of the telescopic column located in the hydraulic chamber. A return spring that is sleeved on the outside of the telescopic column is fixed between the pressure plug and the inner surface of the outer tank.

[0017] As a kind of preferred scheme of the preparation device of the solid waste fuel of cement kiln coal powder fuel alternative, wherein: the lower position of the inside of the ring die roller press is provided with annular slot, the groove wall of the annular slot is provided with annular limiting track, the inner side of the annular limiting track is uniformly distributed with several groups of strip teeth, the upper and lower end faces of the annular limiting track are provided with limiting sliding steps, and the cleaning walking car is movably arranged on the annular limiting track.

[0018] As a kind of preferred scheme of the preparation device of the solid waste fuel of cement kiln coal powder fuel alternative, wherein: the inside of the cleaning walking car is provided with track groove wrapped outside the annular limiting track, the track groove is rotatably provided with movement gear engaged with strip teeth, the inner wall of the track groove is symmetrically distributed with guide wheels acting on limiting sliding steps, and the number of guide wheels is 2 or 4 groups.

[0019] As a kind of preferred scheme of the preparation device of the solid waste fuel of cement kiln coal powder fuel alternative, wherein: the inside of the annular limiting track is outwardly provided with driving groove, the driving groove is provided with uniform speed motor, the rotating shaft of the uniform speed motor is connected with the driving groove through locating bearing, the end of the rotating shaft away from the uniform speed motor is provided with cleaning rod, the cleaning rod extends to the inside of the ring die roller, the cleaning rod is uniformly distributed with several groups of cleaning metal wires, and the cleaning metal wires sequentially act on the inner wall of the ring die roller and the wheel surface of the two groups of roller.

[0020] The application provides a preparation device of solid waste fuel alternative to cement kiln coal powder fuel by improvement, which has the following significant improvements and advantages compared with the prior art. The first servo motor is started, a series of transmissions are carried out to make the magnetic separation inner cylinder rotate, on the one hand, the crushed fuel in the inner cylinder is effectively dispersed, and the crushed fuel is spirally fed to the right through the inclination, the iron-containing impurities in the crushed fuel are fully adsorbed by the electromagnetic force generated by the plurality of energized electromagnets in the movement process, the purpose of automatically screening the iron-containing impurities is achieved, and the screening effect is improved; on the other hand, the iron-containing impurities can freely move after losing the electromagnetic constraint, and slowly move with the magnetic separation inner cylinder, and are randomly dropped into the material collecting box from the plurality of discharge ports to be collected, so that the purpose of automatically removing impurities is achieved.

[0021] The cut fuel rods are slid downward along the plurality of lands on the guide inclined plate, and the fuel rods are separated, so that concentrated stacking is avoided, the primary separation is achieved, the second servo motor on the step feeder is started, a series of transmissions are carried out to make the upper end feeding plate make counterclockwise meandering motion, the plurality of rubber push blocks stepwisely push the fuel rods to move from right to left on the feeding buffer table, so that the dual effects of flexible separation and feeding are achieved, the fuel rods are further prevented from being broken and loose, and the degree of automation is high.

[0022] The cam part is designed, on one hand, the cam part moves and forces the fuel rod to turn over by cam action, so that the fuel rod in the glue tank can be turned over and coated with glue, and the uniformity of the glue coating is improved; on the other hand, the cam part contacts the sliding head below during the downward movement, generates extrusion force to cause the telescopic column to be retracted, drives the pressure plug to move in the hydraulic chamber, and makes the adhesive enter the two groups of glue spraying pipes, is sprayed from the umbrella head position, uniformly sprays the adhesive on the glue coating part area, maintains the amount of glue coating on the glue coating part, ensures the glue coating effect, and has high automation degree.

[0023] The cleaning walking vehicle moves on the annular limiting track, and the annular path sequentially passes through one of the inner surfaces of the ring mold roller and the outer surfaces of the two groups of rollers. By starting the uniform speed motor, the rotating shaft drives the cleaning rod to rotate at high speed, cooperates with the self-movement of the ring mold roller and the two groups of rollers respectively, increases the contact force, and enables the plurality of cleaning metal wires to effectively clean the residues on the roller surface or wheel surface, so that the automatic cleaning purpose is achieved, a plurality of cleaning devices do not need to be designed, the equipment structure is simplified, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic view in one direction of the solid waste fuel preparation device which can replace the cement kiln pulverized coal fuel; Figure 2 It is a whole structure schematic view in another direction of the solid waste fuel preparation device which can replace the cement kiln pulverized coal fuel; Figure 3 It is an external structure schematic view of the screening outer cylinder; Figure 4 It is an internal structure schematic view of the screening outer cylinder; Figure 5 It is a transmission structure schematic view of the magnetic selection inner cylinder; Figure 6 It is a bottom view perspective schematic view of the two groups of annular glue applicators; Figure 7 It is a connection schematic view of the horizontal material distributor and the annular glue applicator; Figure 8 It is an internal structure schematic view of the horizontal material distributor; Figure 9 It is a transmission structure schematic view of the step feeder; Figure 10 It is an internal specific structure schematic view of the annular glue applicator; Figure 11 It is an internal structure schematic view of the adhering wheel; Figure 12 It is a specific structure schematic view of the rotating roller; and Figure 13 is a sectional view of the pressure device of the present application; Figure 14 is a schematic diagram of the external structure of the ring die roll press in the second embodiment of the present application; Figure 15 is a schematic diagram of the installation position of the cleaning rod of the present application; Figure 16 is a schematic diagram of the specific structure of the cleaning walking vehicle of the present application.

[0025] In the figure: 1, support seat; 2, screening outer cylinder; 3, magnetic separation inner cylinder; 4, inner bearing; 5, large gear; 6, small gear; 7, first servo motor; 8, shell seat; 10, electrified electromagnet; 11, discharge port; 12, discharge valve; 13, material collecting box; 14, impurity discharge pipe; 15, feeding port; 16, discharging port; 20, material suction cover; 21, material suction pipe; 22, material suction motor base; 23, material suction motor; 24, feeding pipe; 25, ring die roll press; 26, machine base; 27, driving structure; 30, ring die roller; 31, extrusion hole; 32, roller; 33, briquetting; 34, extrusion gap; 35, No. 1 cutter; 37, No. 2 cutter; 40, guide slope; 41, landslide; 42, horizontal material distributor; 43, feeding buffer table; 44, limiting side baffle; 45, strip-shaped movable groove; 50, feeding plate; 51, rubber push block; 52, connecting arm; 53, special-shaped connecting rod; 54, crank arm; 55, driving shaft; 56, first positioning seat; 60, first sprocket; 61, first chain; 62, second servo motor; 63, swing arm; 64, second positioning seat; 70, ring-shaped rubberizer; 71, automatic discharge port; 72, lamination wheel; 73, wheel shaft; 74, outer bearing seat; 76, second sprocket; 77, second chain; 78, third servo motor; 80, rubberizing groove; 81, curved limiting sleeve; 82, rotating roller; 83, rubberizing part; 84, cam part; 85, roller seat; 86, roller motor; 90, preheating rubber storage box; 91, pressure pump; 92, pressure pipe; 93, pressure device; 94, rubber supply pipe; 95, rubber spraying pipe; 96, umbrella head; 100, outer tank; 101, hydraulic chamber; 102, telescopic column; 103, sliding head; 104, pressure plug; 105, return spring; 110, annular slot; 111, annular limiting track; 112, strip tooth; 113, limiting sliding step; 120, cleaning walking vehicle; 121, track groove; 122, movement gear; 123, guide wheel; 124, driving groove; 125, positioning bearing; 126, rotating shaft; 127, cleaning rod; 128, cleaning wire. DETAILED DESCRIPTION

[0026] 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 embodiments of the present invention, and not all embodiments. Based on the 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. Example 1

[0027] like Figures 1-13 As shown, this embodiment provides a solid waste fuel preparation device that can replace pulverized coal fuel in cement kilns. It includes a support base 1, with two sets of support bases symmetrically distributed at the bottom of the outer screening cylinder 2, which serve as supports. The outer screening cylinder 2 is set at a slight inclination. A magnetic separation inner cylinder 3 is rotatably arranged inside the outer screening cylinder 2. The inclination of the magnetic separation inner cylinder 3 facilitates screw feeding. The outer side of the magnetic separation inner cylinder 3 is connected to the inner wall of the outer screening cylinder 2 through two sets of inner bearings 4. A large gear 5 is sleeved on the outer side of the magnetic separation inner cylinder 3. A small gear 6 is meshed on the upper end of the large gear 5. The small gear 6 is sleeved on the output shaft of the first servo motor 7. A housing 8 is fixed at the upper end of the outer screening cylinder 2. The small gear 6 and the first servo motor 7 are both housed in the housing 8.

[0028] The inner magnetic separator 3 has several sets of energized electromagnets 10 evenly distributed on its outer surface near the center. Several sets of discharge ports 11 are perforated inside the inner magnetic separator 3, each equipped with a discharge valve 12. During screening, the discharge valve 12 is closed. A collection box 13 is connected to the bottom of the outer screening cylinder 2. Two sets of waste removal pipes 14 are symmetrically installed at the lower end of the collection box 13. An inlet 15 is located at the left end of the inner magnetic separator 3, and an outlet 16 is located at the right end. Figures 3-5 As shown.

[0029] Furthermore, a suction hood 20 is installed on the discharge port 16, and a suction pipe 21 is connected to the outside of the suction hood 20. A suction motor base 22 is provided at the end of the suction pipe 21 away from the suction hood 20. A suction motor 23 is installed inside the suction motor base 22, near the top. A feed pipe 24 is connected to the end of the suction motor base 22 away from the suction pipe 21. The feed pipe 24 extends horizontally into the interior of the ring die roller press 25, such as... Figure 1 and Figure 2 As shown.

[0030] Specifically, the lower end of the ring die roll bender 25 is provided with a base 26, the inner middle position of the ring die roll bender 25 is rotatably provided with a ring die roller 30, the base 26 is provided with a driving structure 27 acting on the ring die roller 30, the ring die roller 30 is uniformly provided with a plurality of groups of extrusion holes 31, the size and number of the extrusion holes 31 are designed according to actual conditions, the inner side of the ring die roller 30 is symmetrically provided with two groups of rollers 32, the two groups of rollers 32 are both provided with transmission structures, the rollers 32 are uniformly provided with a plurality of groups of pressing blocks 33 on the circumference, the two groups of rollers 32 and the ring die roller 30 form extrusion gaps 34 respectively, the ring die roll bender 25 is fixed with a first cutter 35 and a second cutter 37 acting on the outer side of the ring die roller 30 respectively, the first cutter 35 has a downward cutter head, the second cutter 37 has an upward cutter head, and the compressed rod is formed by the first cutter 35 and the second cutter 37, as shown in Figure 1 、 Figure 2 and Figure 15

[0031] Further, the outer sides of the first cutter 35 and the second cutter 37 are both provided with guide inclined plates 40, the upper surfaces of the guide inclined plates 40 are uniformly provided with a plurality of groups of sliding lands 41 acting on the compressed rod, the surfaces of the sliding lands 41 are smooth and have small resistance, the lower ends of the guide inclined plates 40 are connected with a horizontal material distributor 42, as shown in Figure 1 、 Figure 2 and Figure 7

[0032] Among them, the upper end surface of the horizontal material distributor 42 is provided with a feeding buffer table 43, the upper end surface of the horizontal material distributor 42 and located on both sides of the feeding buffer table 43 are provided with limiting side baffles 44, the limiting side baffles 44 play a limiting and blocking role, the middle part of the feeding buffer table 43 extends to the inside of the horizontal material distributor 42 to form a strip-shaped movable groove 45, and the strip-shaped movable groove 45 is provided with a step feeder, as shown in Figure 7

[0033] Specifically, the step feeder includes a feeding plate 50, a rubber push block 51, a connecting arm 52, a special-shaped connecting rod 53, a crank arm 54, a driving shaft 55 and a first positioning seat 56, as shown in Figure 8 and Figure 9

[0034] ​​​​The upper end of the feeding plate 50 is equidistantly provided with a rubber push block 51 extending out of the strip-shaped movable slot 45, which acts on the compressed bar stock of the feeding buffer table 43. The rubber push block 51 is made of rubber material and has a buffering protection function. The lower end of the feeding plate 50 is symmetrically connected with two groups of connecting arms 52, which are respectively hinged to the middle part of the special-shaped connecting rod 53. The right end of the special-shaped connecting rod 53 is hinged to a No. 2 crank arm 54, which makes a circular motion. A driving shaft 55 is sleeved on the crank arm 54 and is rotatably arranged in a first positioning seat 56 and extends outward.

[0035] Further, the step-feeding device further comprises a first sprocket 60, a first chain 61, a second servo motor 62, a swing arm 63 and a second positioning seat 64, as shown in Figure 8 and Figure 9 .

[0036] In this embodiment, the end of the driving shaft 55 away from the crank arm 54 is sleeved on the first sprocket 60. The two groups of first sprockets 60 are connected by the first chain 61. One of the driving shafts 55 is connected with the second servo motor 62 by a shaft coupling. The second servo motor 62 is arranged horizontally outside the horizontal material dividing machine 42. The left end of the crank arm 54 is hinged to the swing arm 63. The upper end of the swing arm 63 is rotatably arranged in the second positioning seat 64. The swing arm 63 swings repeatedly. The first positioning seat 56 and the second positioning seat 64 are riveted inside the horizontal material dividing machine 42.

[0037] Further, the left end of the two groups of horizontal material dividing machines 42 is connected with a ring-shaped rubber coating device 70. The upper end of the ring-shaped rubber coating device 70 is provided with an automatic material dropping port 71 which is in abutment with the feeding buffer table 43. The lower end of the ring-shaped rubber coating device 70 is provided with a discharging channel 72 for releasing the compressed bar stock. The cross-sectional size of the automatic material dropping port 71 and the discharging channel 72 is the same as or similar to that of the rubber coating groove 80, as shown in Figure 6 and Figure 7 .

[0038] The inner wall of the ring-shaped rubber coating device 70 is rotatably provided with a matching wheel 73. The two end faces of the matching wheel 73 are welded with wheel shafts 74 at the middle positions. Each group of wheel shafts 74 is connected with the inner wall of the ring-shaped rubber coating device 70 by an outer bearing seat 75. The two groups of wheel shafts 74 are sleeved with second sprockets 76 outside the ring-shaped rubber coating device 70. The two groups of second sprockets 76 are connected by a second chain 77. One of the wheel shafts 74 is connected with a third servo motor 78 by a shaft coupling. The third servo motor 78 is horizontally arranged outside the ring-shaped rubber coating device 70, as shown in Figure 6 , Figure 7 and Figure 10 .

[0039] The wheel surface of the fitting wheel 73 is uniformly provided with a plurality of groups of glue grooves 80. The bottom of the glue groove 80 is symmetrically provided with a curved limiting sleeve 81. The curved limiting sleeve 81 plays a limiting and guiding role on the fuel rod. A rotating roller 82 is rotatably arranged in the curved limiting sleeve 81, as shown in Figure 10 .

[0040] Specifically, the outer surface of the rotating roller 82 is wrapped with a glue coating part 83. The glue coating part 83 partially extends into the glue groove 80 and interacts with the compressed rod. The outer surface of the rotating roller 82 is symmetrically provided with two groups of cam parts 84 (the specific structure and size of the cam part 84 is designed according to the actual situation). The two ends of the rotating roller 82 are provided with roller seats 85 fixed in the inside of the fitting wheel 73. The roller seat 85 is provided with two groups of roller bearings. One of the roller seats 85 is provided with a roller motor 86, as shown in Figure 11 and Figure 12 .

[0041] The inside of the fitting wheel 73 is fixed with a preheating glue storage box 90 at the middle position. The preheating glue storage box 90 is provided with an electric heater outside. The preheating glue storage box 90 is placed with an adhesive inside. The inside of the preheating glue storage box 90 is provided with a pressure pump 91. The pressure pump 91 is connected with the inside of the preheating glue storage box 90 through two groups of pressure pipes 92 to improve the air pressure power in the inside of the preheating glue storage box 90. The preheating glue storage box 90 is uniformly provided with a plurality of groups of glue supply pipes 94 outside the periphery. The glue supply pipe 94 is provided with a one-way valve, as shown in Figure 11 .

[0042] Further, the end of each group of glue supply pipes 94 is connected with a pressure device 93. The outside of the pressure device 93 is symmetrically connected with two groups of glue spraying pipes 95. The glue spraying pipe 95 is provided with a two-way valve. The end of the glue spraying pipe 95 is provided with a umbrella head 96 acting on the glue coating part 83. The two groups of umbrella heads 96 are symmetrically distributed below the two sides of the rotating roller 82, as shown in Figure 11 and Figure 13 .

[0043] Specifically, the pressure device 93 includes an outer tank 100, a hydraulic chamber 101, a telescopic column 102, a sliding head 103, a pressure plug 104 and a reset spring 105, as shown in Figure 13 .

[0044] In this embodiment, the outer tank 100 is fixed in the inside of the fitting wheel 73. The inside of the outer tank 100 is provided with the hydraulic chamber 101. The inside of the hydraulic chamber 101 is movably provided with the telescopic column 102. One end of the telescopic column 102 is provided with the sliding head 103 acting on the cam part 84. The other end of the telescopic column 102 is provided with the pressure plug 104 slidingly sealed with the cavity wall. The pressure plug 104 and the inner surface of the outer tank 100 are fixed with the reset spring 105 sleeved outside the telescopic column 102. The reset spring 105 generates a reset compression elastic force after being compressed.

[0045] In use, the pulverized fuel to be treated is fed into the magnetic separation inner cylinder 3 from the feed inlet 15, and then a plurality of groups of energized electromagnets 10 are turned on, the first servo motor 7 is started, the pinion gear 6 is driven to rotate, the meshing causes the rotation of the large gear 5, the magnetic separation inner cylinder 3 is caused to rotate, the pulverized fuel inside is effectively dispersed, and is fed by right helix through the inclination, the iron-containing impurities in the pulverized fuel are fully adsorbed by the electromagnetic force generated by the plurality of groups of energized electromagnets 10 during the movement, and then the suction motor 23 is started to generate strong suction, the suction cover 20 is used to suck the pulverized fuel in the magnetic separation inner cylinder 3 into the suction motor seat 22, and continuously injects into the inside of the ring die roller press 25 through the feeding pipe 24, the plurality of groups of energized electromagnets 10 are turned off, the large amount of iron-containing impurities in the magnetic separation inner cylinder 3 can move freely after losing the electromagnetic restraint, and slowly move together with the magnetic separation inner cylinder 3, and randomly fall into the collection box 13 from the plurality of groups of discharge ports 11, and are discharged outward through the two groups of impurity discharge pipes 14.

[0046] The ring die roller cylinder 30 and the two groups of roller wheels 32 in the ring die roller press 25 move clockwise, form extrusion action on the pulverized fuel at the two extrusion gap 34 positions, form fuel rods in the plurality of groups of extrusion holes 31, and the fuel rods are contacted by the first cutter 35 and the second cutter 37 respectively, and the fuel rods are cut off to the same length, the cut fuel rods are just slid downward along the plurality of groups of sliding slopes 41 on the guide chute 40, and the fuel rods are distributed, avoiding concentrated stacking, the distributed fuel rods move to the right end of the feeding buffer table 43, and are in a horizontal swing state, the second servo motor 62 on the stepping feeder is started, one of the driving shafts 55 is driven to rotate, and the two groups of driving shafts 55 are simultaneously and circularly moved through the connection transmission of the first chain 61, the special-shaped connecting rods 53 connected with the crank arms 54 are moved, the upper end feeding plate 50 is counterclockwise back-shaped moved by cooperation of the reciprocating swing of the swing arm 63, the fuel rods are step by step pushed from right to left on the feeding buffer table 43 by the plurality of groups of rubber push blocks 51, and achieve the dual effects of flexible distribution and feeding.

[0047] A single group or a few groups of fuel rods are pushed from the left end of the feeding buffer table 43 into the automatic feeding port 71, and fall into a group of the upper glue grooves 80 on the top of the matching wheel 73. The third servo motor 78 is started, and the wheel shaft 74 drives the matching wheel 73 to move intermittently, so that each group of the upper glue grooves 80 receives the falling fuel rods in the automatic feeding port 71 in turn, forming continuity. At the same time, for the upper glue grooves 80 after receiving the materials, the roller motor 86 is started to drive the rotating roller 82 to rotate. On the one hand, the glue applying part 83 on the rotating roller 82 contacts the local fuel rod to apply adhesive to the fuel rod, further combining the crushed materials, so that the fuel rod is not easy to split. On the other hand, the glue applying part 83 makes the fuel rod turn over by contact force, and the cam part 84 also makes the fuel rod turn over by cam action, so that the fuel rod in the upper glue groove 80 can be turned over while being glued, improving the uniformity of gluing. Then, the upper glue groove 80 moves downward with the matching wheel 73 to the discharging channel 72 position, and the glued fuel rod is discharged outward from the discharging channel 72.

[0048] When the rotating roller 82 moves, the cam part 84 contacts the lower slide head 103 in the downward movement process, generates extrusion force to cause the telescopic column 102 to retract, and the telescopic column 102 drives the pressure plug 104 to move in the hydraulic cavity 101, compresses the adhesive in the cavity, and makes the adhesive enter the two groups of glue spraying pipes 95, so that the second one-way valve is opened outward from the umbrella head 96 position to spray the adhesive uniformly to the area of the glue applying part 83, maintains the amount of glue applied to the glue applying part 83, and when the cam part 84 and the slide head 103 are separated, the telescopic column 102 extends outward under the compression of the return spring 105, so that a negative pressure state is formed in the hydraulic cavity 101. The adhesive in the preheating glue storage box 90 in a positive pressure state is injected into the hydraulic cavity 101 from the glue supply pipe 94 as a supplement (the second one-way valve is opened under pressure), forming continuous supply of adhesive. Example Two

[0049] On the basis of example one, when the ring die roller press 25 works, the inner surface of the ring die roller 30 and the outer surface of the two groups of roller wheels 32 are easy to stick with impurities, which will form residues after a long time, and additional increase the movement resistance of the ring die roller 30 and the two groups of roller wheels 32, and interfere with the effective forming of the fuel rod at the extrusion hole 31 position. The current common method is to install a cleaning device on the outer side of the ring die roller 30 and the two groups of roller wheels 32, but this will lead to complex structure, large size, high production and use cost of the equipment. In order to solve the above technical problems, we have the following design, as shown in Figures 14-16 .

[0050] Specifically, the lower inside of the ring die roller press 25 is provided with a ring-shaped slot 110, and the slot wall of the ring-shaped slot 110 is provided with a ring-shaped limiting track 111. The inner side of the ring-shaped limiting track 111 is uniformly distributed with a plurality of groups of strip teeth 112. The upper and lower end faces of the ring-shaped limiting track 111 are provided with limiting sliding steps 113. The ring-shaped limiting track 111 is movably provided with a cleaning walking vehicle 120, as shown in Figure 14 .

[0051] Further, the inside of the cleaning walking vehicle 120 is provided with a track groove 121 wrapped outside the ring-shaped limiting track 111. The track groove 121 is rotatably provided with a movement gear 122 engaged with the strip teeth 112. The movement gear 122 extends from the inside of the cleaning walking vehicle 120 into the track groove 121. The inside of the cleaning walking vehicle 120 is provided with a drive motor for driving the movement gear 122. The inner wall of the track groove 121 is symmetrically distributed with guide wheels 123 acting on the limiting sliding steps 113. The guide wheels 123 are guided to rotate along the limiting sliding steps 113, as shown in Figure 14 and Figure 16 .

[0052] Among them, the inside of the ring-shaped limiting track 111 is outwardly provided with a drive groove 124. The drive groove 124 is installed with a constant-speed motor. The rotating shaft 126 of the constant-speed motor is connected with the drive groove 124 through a positioning bearing 125, as shown in Figure 16 .

[0053] Further, the end of the rotating shaft 126 away from the constant-speed motor is installed with a cleaning rod 127. The cleaning rod 127 extends into the inside of the ring die roller 30. The cleaning rod 127 is uniformly distributed with a plurality of groups of cleaning metal wires 128. The cleaning metal wires 128 successively act on the inner wall of the ring die roller 30 and the wheel surface of the two groups of roller wheels 32 and temporarily stay at the above three points, as shown in Figure 16 .

[0054] In use, the drive motor is started to drive the movement gear 122 to rotate. The movement gear 122 is engaged with the strip teeth 112 to cause the cleaning walking vehicle 120 to move around the ring-shaped limiting track 111. The moving path thereof successively passes through one of the inner surface of the ring die roller 30 and the outer surface of the two groups of roller wheels 32. The constant-speed motor is started to drive the rotating shaft 126 to rotate at high speed. The rotating shaft 126 is matched with the movement of the ring die roller 30 and the two groups of roller wheels 32 (increasing the contact force) to enable the plurality of groups of cleaning metal wires 128 to effectively automatically clean the residues on the roller surface or wheel surface.

[0055] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0056] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preparing a solid waste fuel that can replace pulverized coal fuel in a cement kiln, comprising a support seat (1) and a ring die roller compactor (25), characterized in that: The support seat (1) is symmetrically distributed in two groups at the bottom of the screening outer cylinder (2), the screening outer cylinder (2) is arranged in a slight inclination, the magnetic separation inner cylinder (3) is rotatably arranged in the screening outer cylinder (2), the outer side of the magnetic separation inner cylinder (3) is connected with the inner wall of the screening outer cylinder (2) through two groups of inner bearings (4), and the outer side of the magnetic separation inner cylinder (3) is sleeved with a large gear (5); A plurality of groups of energized electromagnets (10) are uniformly distributed on the outer surface of the magnetic separation inner cylinder (3) in a middle position, a plurality of groups of discharge ports (11) are formed through the magnetic separation inner cylinder (3), a discharge valve (12) is arranged on each group of the discharge ports (11), and a material collecting box (13) is arranged in communication at the bottom of the screening outer cylinder (2); two groups of impurity removal pipes (14) are symmetrically arranged at the lower end of the material collecting box (13); Two groups of horizontal material distributors (42) are arranged on the left side of the ring die roll press (25), and a ring-shaped rubber coating device (70) is connected to the left end of each group of the horizontal material distributors (42); an automatic material falling port (71) is formed at the upper end of the ring-shaped rubber coating device (70) and is in abutment with the feeding buffer table (43); a discharge channel (72) for releasing the compressed rod material is formed at the lower end of the ring-shaped rubber coating device (70); and a lamination wheel (73) is rotatably arranged in the ring-shaped rubber coating device (70). A plurality of groups of rubber coating grooves (80) are uniformly formed on the wheel surface of the lamination wheel (73), curved limiting sleeves (81) are symmetrically arranged at the bottom of the rubber coating grooves (80), a rotating roller (82) is rotatably arranged in the curved limiting sleeve (81), a rubber coating part (83) is wrapped on the outer surface of the rotating roller (82), and the rubber coating part (83) partially extends into the rubber coating groove (80) and interacts with the compressed rod material; and two groups of cam parts (84) are symmetrically arranged on the outer surface of the rotating roller (82).

2. A device for preparing a cement kiln coal powder fuel replaceable solid waste fuel according to claim 1, characterized in that: The upper end of the large gear (5) is meshed with a small gear (6), the small gear (6) is sleeved on the output shaft of a first servo motor (7), the upper end of the screening outer cylinder (2) is fixed with a shell seat (8), the small gear (6) and the first servo motor (7) are accommodated in the shell seat (8), and the left end of the magnetic separation inner cylinder (3) is provided with a feeding port (15).

3. A device for preparing a cement kiln coal powder fuel replaceable solid waste fuel according to claim 1, characterized in that: A material suction cover (20) is arranged on the discharge port (16), a material suction pipe (21) is connected to the outside of the material suction cover (20), a material suction motor seat (22) is arranged at the end of the material suction pipe (21) away from the material suction cover (20), a material suction motor (23) is arranged in the material suction motor seat (22), a feeding pipe (24) is connected to the end of the material suction motor seat (22) away from the material suction pipe (21), and the feeding pipe (24) horizontally extends into the ring die roll press (25). The lower end of the ring die roll bender (25) is provided with a base (26), the inside of the ring die roll bender (25) is rotationally provided with a ring die roller (30), the base (26) is provided with a driving structure (27) acting on the ring die roller (30), a plurality of extrusion holes (31) are uniformly arranged on the ring die roller (30), two groups of rollers (32) are symmetrically arranged on the inner side of the ring die roller (30), a plurality of groups of pressing blocks (33) are uniformly arranged on the roller (32), the two groups of rollers (32) and the ring die roller (30) form an extrusion gap (34) respectively, and a first cutter (35) and a second cutter (37) acting on the outer side of the ring die roller (30) are fixed on the ring die roll bender (25), and the first cutter (35) and the second cutter (37) form a compressed bar.

4. A device for preparing a cement kiln coal powder fuel replaceable solid waste fuel according to claim 3, characterized in that: The outer side of the first cutter (35) and the second cutter (37) is provided with a material guiding inclined plate (40), a plurality of slide lands (41) acting on the compressed bar are uniformly arranged on the upper surface of the material guiding inclined plate (40), the lower end of the material guiding inclined plate (40) is connected with a horizontal material distributing machine (42), the upper end surface of the horizontal material distributing machine (42) is provided with a feeding buffer table (43), the upper end surface of the horizontal material distributing machine (42) and located on both sides of the feeding buffer table (43) is provided with a limiting side baffle (44), a strip-shaped movable groove (45) is arranged in the middle part of the feeding buffer table (43) and extends to the inside of the horizontal material distributing machine (42), and a stepping feeder is arranged in the strip-shaped movable groove (45).

5. A device for producing a cement kiln coal powder fuel-replaceable solid waste fuel according to claim 4, characterized in that: The stepping feeder comprises a feeding plate (50), a rubber pushing block (51), a connecting arm (52), a special-shaped connecting rod (53), a crank arm (54), a driving shaft (55), and a first positioning seat (56), the upper end of the feeding plate (50) is equidistantly provided with rubber pushing blocks (51) extending out of the strip-shaped movable groove (45), the rubber pushing blocks (51) act on the compressed bar of the feeding buffer table (43), the lower end of the feeding plate (50) is symmetrically connected with two groups of connecting arms (52), the two groups of connecting arms (52) are respectively hinged to the middle part of the special-shaped connecting rod (53), the right end of the special-shaped connecting rod (53) is hinged to a second crank arm (54), the driving shaft (55) is sleeved on the crank arm (54), and the driving shaft (55) is rotationally arranged in the first positioning seat (56) and extends outward; The stepping feeder further comprises a first sprocket (60), a first chain (61), a second servo motor (62), a swing arm (63), and a second positioning seat (64), the end of the driving shaft (55) away from the crank arm (54) is sleeved on the first sprocket (60), the two groups of first sprockets (60) are connected by the first chain (61), one group of the driving shafts (55) are connected with the second servo motor (62) by a shaft coupling, the left end of the crank arm (54) is hinged to the swing arm (63), and the upper end of the swing arm (63) is rotationally arranged on the second positioning seat (64).

6. A device for preparing a cement kiln coal powder fuel replaceable solid waste fuel according to claim 1, characterized in that: Both ends of the fitting wheel (73) are welded with wheel shafts (74), each group of wheel shafts (74) is connected with the outer bearing seat (75) and the inner wall of the ring-shaped rubber coating device (70), two groups of second sprocket wheels (76) are connected with the second chain (77) through the second chain (77), and one group of wheel shafts (74) is connected with the third servo motor (78) through the shaft coupling. Both ends of the rotating roller (82) are provided with roller seats (85) fixed in the interior of the fitting wheel (73), and one group of roller seats (85) is provided with a roller motor (86).

7. A device for producing a cement kiln coal powder fuel-replaceable solid waste fuel according to claim 6, characterized in that: The interior of the fitting wheel (73) is fixed with a preheating glue storage box (90), the preheating glue storage box (90) is placed with an adhesive, the inner side of the preheating glue storage box (90) is provided with a pressure pump (91), the pressure pump (91) is connected with the interior of the preheating glue storage box (90) through two groups of pressure pipes (92), a plurality of groups of glue supply pipes (94) are uniformly installed on the outer periphery of the preheating glue storage box (90), a one-way valve is installed on the glue supply pipe (94), and the end of each group of glue supply pipes (94) is connected with a pressure device (93). The outer side of the pressure device (93) is symmetrically connected with two groups of glue spraying pipes (95), the glue spraying pipes (95) are provided with a two-way valve, and the end of the glue spraying pipes (95) is provided with a umbrella head (96) acting on the rubber coating part (83).

8. A device for producing a cement kiln coal powder fuel-replaceable solid waste fuel according to claim 7, characterized in that: The pressure device (93) comprises an outer tank (100), a hydraulic cavity (101), a telescopic column (102), a sliding head (103), a pressure plug (104) and a reset spring (105), the outer tank (100) is fixed in the interior of the fitting wheel (73), the interior of the outer tank (100) is provided with a hydraulic cavity (101), the interior of the hydraulic cavity (101) is outwardly provided with a telescopic column (102), one end of the telescopic column (102) is provided with a sliding head (103) acting on the cam part (84), the other end of the telescopic column (102) is provided with a pressure plug (104) slidingly sealed with the cavity wall, and the reset spring (105) is fixed between the pressure plug (104) and the inner surface of the outer tank (100) and sleeved on the outer side of the telescopic column (102).

9. A device for preparing a cement kiln coal powder fuel replaceable solid waste fuel according to claim 3, characterized in that: The interior of the ring die roller pressure machine (25) is provided with a ring-shaped slot (110) at the lower position, the slot wall of the ring-shaped slot (110) is provided with a ring-shaped limiting track (111), the inner side of the ring-shaped limiting track (111) is uniformly provided with a plurality of groups of strip teeth (112), the upper and lower end faces of the ring-shaped limiting track (111) are provided with limiting sliding steps (113), and the ring-shaped limiting track (111) is movably provided with a cleaning walking vehicle (120). The inside of the cleaning walking vehicle (120) is provided with a track groove (121) wrapped outside the annular limiting track (111), the track groove (121) is provided with a movement gear (122) rotatingly arranged and engaged with the strip teeth (112), and the inside wall of the track groove (121) is symmetrically provided with guide wheels (123) acting with the limiting sliding steps (113).

10. A device for producing a cement kiln coal powder fuel-replaceable solid waste fuel according to claim 9, characterized in that: The inside of the annular limiting track (111) is outwardly provided with a driving groove (124), the driving groove (124) is internally provided with a constant-speed motor, the rotating shaft (126) of the constant-speed motor is connected with the driving groove (124) by using a positioning bearing (125), one end of the rotating shaft (126) away from the constant-speed motor is provided with a cleaning rod (127), the cleaning rod (127) extends to the inside of the ring die roller (30), a plurality of groups of cleaning metal wires (128) are uniformly distributed on the cleaning rod (127), and the cleaning metal wires (128) sequentially act with the inner wall of the ring die roller (30) and the wheel faces of the two groups of roller wheels (32).

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