Pre-combustion furnace fuel ton bag crushing and blanking mechanism

Abstract

The utility model relates to the field of combustion equipment, in particular to a pre-combustion furnace fuel ton bag crushing and blanking mechanism which comprises a shell, an opening is formed in one side of the shell, two crushing rollers are arranged in the shell at the opening, and the rotating direction of the crushing rollers is that the crushing rollers rotate towards the outside from the position between the two crushing rollers; a conveying mechanism for feeding materials towards the crushing rollers is arranged outside the opening; compared with the prior art, the feeding system has the advantages that the ton bag is clamped at the inlet of the shell, so that the ton bag is slowly fed, and fuel is not easy to accumulate in the feeding system.

Description

Technical Field

[0001] The utility model belongs to 7.1 High-efficiency energy-saving industries under 7.1.1 High-efficiency energy-saving boilers and kilns in the catalogue of strategic emerging industries, which includes 7 energy-saving and environmental protection industries. It relates to the field of combustion equipment, and specifically to a pre-combustion furnace fuel bag crushing and blanking mechanism. Background Art

[0002] In order to meet the dual carbon goals, namely carbon peak and carbon neutrality, the decomposition furnace in thermal equipment is required to reduce the carbon content of combustion, that is, reduce the use of fuel: pulverized coal, and advocate the use of alternative fuels. An opening is opened on the side of the decomposition furnace to connect the precombustion furnace. A stepped structure is set up in the precombustion furnace. The alternative fuel descends step by step on the steps, is fully burned, and finally enters the decomposition furnace.

[0003] Pre-combustion furnaces are generally erected at high locations. To deliver fuel to the pre-combustion furnace's feeding system, alternative fuels are often transported to a high position via a belt conveyor and then fed into the pre-combustion furnace through the feeding system. The disadvantage is that a considerable portion of the alternative fuel is composed of garbage, and continuous transportation in an exposed environment will cause unpleasant odors in the workplace and cause pollution.

[0004] The applicant has proposed CN2023229349617, a pre-combustion furnace fuel delivery system, which proposes to seal the alternative fuel during transportation and then break the seal when feeding into the pre-combustion furnace. The "breaking the seal" uses a traditional crusher, which can quickly break up the ton bag. This has the disadvantage that the fuel in the entire ton bag falls down at once, which may cause material jamming and may further cause the heat return of the pre-combustion furnace to be buried under the accumulated fuel, posing a production risk of fire. Therefore, improvement is needed to slow down the dropping process. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a pre-combustion furnace fuel ton bag crushing and blanking mechanism.

[0006] The purpose of the present utility model is achieved in the following way: a pre-combustion furnace fuel ton bag crushing and blanking mechanism includes a shell 71, an opening 72 is formed on one side of the shell 71, two crushing rollers 73 are arranged in the shell 71 at the opening 72, and the rotation direction of the crushing roller 73 is from between the two crushing rollers 73 to the direction toward the outside of the opening 72; a transportation mechanism for feeding material in the direction of the crushing roller 73 is arranged outside the opening 72; a hook structure 74 is provided on the opening 72 to prevent the material from moving away from the crushing roller 73.

[0007] Furthermore, the crushing rollers 73 are provided with crushing teeth 731 , and the crushing teeth 731 of the two crushing rollers 73 are arranged alternately, and the crushing teeth 731 form a cutting edge on one side of the crushing roller 73 in the rotation direction.

[0008] Furthermore, the transport mechanism is a fourth roller conveyor system 6, which includes a waiting section 61 and a continuous feeding section 62 for feeding materials to the crushing and blanking mechanism 7. The waiting section 61 and the continuous feeding section 62 operate independently; the continuous feeding section 62 includes several rollers, and a friction belt 621 is provided on the continuous feeding section 62. The friction belt 621 covers the roller closest to the opening 72 and at least one roller after the roller, and an anti-slip structure is provided on the friction belt 621.

[0009] Furthermore, the barb structure 74 includes a mounting seat 741, which is fixedly connected to the inner wall of the opening 72. The mounting seat 741 is hinged to the swing seat 742 through a rotating shaft. The end of the swing seat 742 away from the crushing roller 73 forms a hinge point. A torsion spring 743 is arranged outside the rotating shaft. The torsion spring 743 provides a force to swing the swing seat 742 outward. The swing seat 742 is fixedly connected to the blade 744. The side of the blade 744 away from the crushing roller 73 forms a cutting edge, and the side of the blade 744 close to the crushing roller 73 is a blunt end.

[0010] Furthermore, it also includes a driving motor, the output end of the driving motor is fixedly connected to the driving sprocket, and the driving sprocket cooperates with the chain; one end of a crushing roller 73 passes through the side wall of the shell 71 and is fixedly connected to the driven sprocket, and the driven sprocket cooperates with the chain, and the other end of the crushing roller 73 passes through the side wall of the shell 71 and is fixedly connected to the first gear, and the end of the other crushing roller 73 passes through the side wall of the shell 71 and is fixedly connected to the second gear, and the first gear is meshed with the second gear.

[0011] Compared with the prior art, the utility model clamps the ton bag at the shell entrance, so that the ton bag is discharged slowly and it is not easy to cause fuel to accumulate in the discharge system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the kiln building;

[0013] Figure 2 is based on Figure 1 sectional view of

[0014] Figure 3 It is an enlarged view of the transport part of the trolley;

[0015] Figure 4 This is a schematic diagram of the structure of the first roller conveyor system in the factory building;

[0016] Figure 5 It is a structural diagram of the transport trolley in the transport state;

[0017] Figure 6 It is a schematic diagram of the structure for transporting the trolley to the car, in which the car is in a cross-sectional view;

[0018] Figure 7This is a structural diagram of the car to crushing and blanking mechanism, in which the car is in a cross-sectional view;

[0019] Figure 8 It is a structural diagram of the crushing and blanking mechanism;

[0020] Figure 9 This is an enlarged view of the opening of the crushing and blanking mechanism;

[0021] Figure 10 It is an enlarged view of the barb structure.

[0022] Among them, pre-combustion furnace 1, feeding system 2, elevator 3, car 31, third roller conveyor system 32, third grating 321, ton bag 4;

[0023] Transport trolley 5, track 51, first in-position switch 511, second in-position switch 512, deceleration switch 513, second roller conveyor system 52, second grating 521, gear lever motor 53, gear lever 531;

[0024] Fourth roller conveyor system 6, waiting section 61, fourth grating 611, continuous feeding section 62, friction belt 621;

[0025] Crushing and blanking mechanism 7, housing 71, opening 72, crushing roller 73, crushing teeth 731, barb structure 74, mounting seat 741, swing seat 742, torsion spring 743, blade 744;

[0026] Factory building 8, first roller conveyor system 81, first grating 811. DETAILED DESCRIPTION

[0027] 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 embodiments 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 making creative efforts are within the scope of protection of the present invention.

[0028] In the present invention, unless otherwise expressly specified and limited, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0029] As attached Figure 1-7 As shown, a pre-combustion furnace fuel ton bag transportation system includes a pre-combustion furnace 1, the pre-combustion furnace 1 is fed by a feeding system 2, and a crushing and dropping mechanism 7 is provided on the upper end of the feeding system 2. The crushing and dropping mechanism 7 can be a double-roller or multi-roller crusher of the prior art, but preferably it is a special crushing and dropping mechanism 7 of the present application described later. It also includes a hoist 3, and a liftable car 31 is provided on the hoist 3. The hoist 3 and the car 31 are prior art and are not described here. A third roller conveyor system 32 is provided in the car 31, and a fourth roller conveyor system 6 is provided between the top of the hoist 3 and the crushing and dropping mechanism 7; it also includes a transport for transporting ton bags 4. The transport trolley 5 is provided with a second roller conveyor system 52. The roller conveyor system is a prior art, and preferably includes a fixed frame, a plurality of rollers are arranged in an array on the frame, the rollers are rotatably connected to the frame, and a driven sprocket is fixed to one end of the roller; the frame is fixedly connected to the motor, the output end of the motor is connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the driving sprocket, and the driving sprocket and the driven sprocket are connected in series through a chain, so that the roller is driven to rotate by the motor, and it can also be other roller structures in the prior art; the above-mentioned transport system structure is detailed in CN2023229349617 and CN2023232362034.

[0030] As attached Figure 1-3 As shown, it also includes a track 51 that cooperates with the transport trolley 5. One end of the track 51 extends to the entrance of the car 31 at the bottom of the elevator 3, and a first roller conveyor system 81 is set at the other end of the track 51. The first roller conveyor system 81 is set in the factory building 8. Since the ton bags 4 contain flammable alternative fuels, the ton bags 4 are first transported to the factory building 8 for storage after packaging. An entrance is set at the rear of the factory building 8 for the entry of the ton bags 4, and an exit is set at the front of the factory building 8 for the track 51 to pass through. The walls and top of the factory building 8 are preferably closed, and the windows are provided with translucent shading glass. The factory building 8 is built with a crane or a small crane for lifting the ton bags 4, which is used to transfer the stored ton bags 4 to the tail end of the first roller conveyor system 81; a transfer node is formed between every two independent conveying systems, and an in-place detection mechanism is set around the transfer node. All in-place detection mechanisms and the driving mechanisms of all conveying systems are communicated with the main controller, which can be a wired connection, but considering that the total volume is too large, a wireless connection is preferred.

[0031] In place testing agencies include the following:

[0032] As attached Figure 4 As shown, first gratings 811 are provided on both sides of the front end of the first roller conveyor system 81 , and a first in-position switch 511 is provided on the track 51 in front of the front end of the first roller conveyor system 81 .

[0033] As attached Figure 5As shown, second gratings 521 are set on both sides of the front end of the second roller conveyor system 52, and the second gratings 521 are fixed on both sides of the transport trolley 5. A gear lever motor 53 is fixed at the front end of the transport trolley 5, and the output end of the gear lever motor 53 is fixedly connected to the gear lever 531. The gear lever 531 is located in front of the front end of the second roller conveyor system 52. As the output end of the gear lever motor 53 rotates, the gear lever 531 is higher or lower than the load-bearing plane of the second roller conveyor system 52. The gear lever 531 is used to prevent the ton bag 4 from sliding forward out of the transport trolley 5 due to inertia when the transport trolley 5 decelerates during transportation. Preferably, a gear lever motor 53 and a gear lever 531 are also provided at the rear of the transport trolley 5.

[0034] As attached Figure 6 As shown, a second in-position switch 512 is provided on the track 51 behind the bottom of the elevator 3, and a deceleration switch 513 is provided on the track 51 at a distance of 3m~8m from the bottom of the elevator 3; a third grating 321 is provided on both sides of the front end of the third roller conveyor system 32; when the transport trolley 5 goes to the first roller conveyor system 81, it is in an unloaded state, so only the first in-position switch 511 is provided, and the transport trolley 5 can be stopped and braked after it is in position, but when the transport trolley 5 goes to the elevator 3, it carries a ton bag 4 weighing about 1 ton and outputs more power at the same time, so it is necessary to brake and decelerate in advance, so a deceleration switch 513 is provided at a distance of 3m~8m from the bottom of the elevator 3. When the transport trolley 5 is detected, the main controller issues a brake deceleration command, and stops at the position of the second in-position switch 512.

[0035] As attached Figure 7 As shown, the fourth roller conveyor system 6 includes a waiting section 61 that cooperates with the car 31 at the top of the elevator 3, and a continuous feeding section 62 for feeding materials to the crushing and blanking mechanism 7. The waiting section 61 and the continuous feeding section 62 operate independently. Independent operation means that they are respectively driven by two sets of drive motors and matching chain transmissions. The continuous feeding section 62 and the waiting section 61 are connected end to end but have no driving relationship. A fourth grating 611 is set on both sides of the waiting section 61.

[0036] As for the ton bag crushing and blanking mechanism 7, CN2023229349617 and CN2023232362034 both record that a double-roller or multi-roller crusher in the prior art is used. The disadvantage is that the entire ton bag 4 and the fuel therein directly fall into the feeding system 2 below, resulting in material piling and jamming. It may also cause hot air to be returned from the pre-combustion furnace 1 to the feeding system 2 and accumulate in the feeding system 2. There is a risk of fuel burning in the feeding system 2. Therefore, improvements are made to change the material discharge of the crushing and blanking mechanism 7 from a one-time process to a continuous process.

[0037] As attached Figure 7-10As shown, a pre-combustion furnace fuel ton bag crushing and blanking mechanism includes a shell 71, an opening 72 is formed on one side of the shell 71, and two crushing rollers 73 are arranged in the shell 71 at the opening 72. The rotation direction of the crushing rollers 73 is from between the two crushing rollers 73 to the direction toward the outside of the opening 72, that is, from the middle to the outside; a transportation mechanism for feeding the material toward the crushing rollers 73 is provided outside the opening 72; a barb structure 74 is provided on the opening 72 to prevent the material from moving away from the crushing rollers 73.

[0038] The continuous feeding section 62 is made to run continuously. When there is no ton bag 4 on the continuous feeding section 62, the waiting section 61 runs to move the ton bag 4 to the continuous feeding section 62. The continuous feeding section 62 continuously provides a force to push the ton bag 4 into the crushing roller 73. The crushing roller 73 crushes the surface of the ton bag 4 and provides a force to push the ton bag 4 outward. The barb structure 74 scratches the surface of the ton bag 4 when the ton bag 4 enters, and when the crushing roller 73 pushes the ton bag 4 outward, the ton bag 4 is stuck. The ton bag 4 continues to leak material into the feeding system 2 through the surface break until there is not much remaining material and it is completely crushed by the crushing roller 73 and falls into the feeding system 2

[0039] Furthermore, the crushing roller 73 is provided with crushing teeth 731 , and the crushing teeth 731 of the two crushing rollers 73 are arranged alternately. The crushing teeth 731 form a cutting edge on one side of the crushing roller 73 in the rotation direction, preferably forming a crescent knife shape as shown in the figure.

[0040] The transport mechanism is a continuous feeding section 62, which includes several rollers. A friction belt 621 is provided on the continuous feeding section 62. The friction belt 621 covers the roller closest to the opening 72 and at least one roller behind the roller. An anti-slip structure is provided on the friction belt 621. The anti-slip structure can be a rough surface of the friction belt 621 itself, or a plurality of transverse linear anti-slip grooves, wavy anti-slip grooves, or other shapes of anti-slip grooves are provided on the surface of the friction belt 621 along the transport direction.

[0041] Further, as attached Figure 10 As shown, the barb structure 74 includes a mounting seat 741, which is fixedly connected to the inner wall of the opening 72. The mounting seat 741 is hinged to the swing seat 742 through a rotating shaft. The end of the swing seat 742 away from the crushing roller 73 forms a hinge point. A torsion spring 743 is arranged outside the rotating shaft. The torsion spring 743 provides a force to swing the swing seat 742 outward. The swing seat 742 is fixedly connected to a blade 744. The side of the blade 744 away from the crushing roller 73 forms a cutting edge, and the side of the blade 744 close to the crushing roller 73 is a blunt end, so that the surface of the ton bag 4 is scratched when the ton bag 4 enters, and a hook is formed to clamp the ton bag 4 when the ton bag 4 is subjected to outward force.

[0042] Preferably, a fixed blade 744 is provided at the bottom of the inner wall of the opening 72, preferably two blades 744 are provided on both sides, which also play a hanging role.

[0043] Furthermore, it also includes a driving motor, the output end of the driving motor is fixedly connected to the driving sprocket, and the driving sprocket cooperates with the chain; one end of a crushing roller 73 passes through the side wall of the shell 71 and is fixedly connected to the driven sprocket, and the driven sprocket cooperates with the chain, and the other end of the crushing roller 73 passes through the side wall of the shell 71 and is fixedly connected to the first gear, and the end of the other crushing roller 73 passes through the side wall of the shell 71 and is fixedly connected to the second gear, and the first gear is meshed with the second gear.

[0044] Ton bag transportation crushing method, the method is:

[0045] S1. The fuel is packed in ton bags 4 and transported to the plant 8 for storage;

[0046] S2: The ton bag 4 in the factory building 8 is transferred to the rear end of the first roller conveyor system 81 and transported to the front end along the first roller conveyor system 81. After the first grating 811 detects the ton bag 4, it sends a command to the main controller to stop the first roller conveyor system 81.

[0047] S3: The transport trolley 5 moves toward the first roller conveyor system 81 via the track 51. The first in-position switch 511 detects that the transport trolley 5 has arrived at the position and sends a command to the main controller to stop the transport trolley 5. The second roller conveyor system 52 on the transport trolley 5 abuts against the first roller conveyor system 81.

[0048] S4: The first roller conveyor system 81 and the second roller conveyor system 52 operate synchronously, moving the ton bag 4 onto the second roller conveyor system 52. The lever motor 53 operates synchronously, raising the lever 531 to form a limit position. After the second grating 521 detects the ton bag 4, the second roller conveyor system 52 stops, and the transport trolley 5 starts to move toward the elevator 3. The first roller conveyor system 81 executes S2.

[0049] S5, after the deceleration switch 513 detects that the transport trolley 5 is in position, the transport trolley 5 decelerates, and after the second in-position switch 512 detects that the transport trolley 5 is in position, the transport trolley 5 stops, and the gear lever motor 53 runs, causing the gear lever 531 to descend;

[0050] S6: The second roller conveyor system 52 and the third roller conveyor system 32 operate synchronously, moving the ton bag 4 to the third roller conveyor system 32. After the third grating 321 detects the ton bag 4, the second roller conveyor system 52 and the third roller conveyor system 32 stop, the car 31 closes its door, and moves upward via the hoist 3. The transport trolley 5 executes S3.

[0051] S7: The car 31 is lifted to the height corresponding to the fourth roller conveyor system 6. The car 31 opens its door, and the third roller conveyor system 32 and the fourth roller conveyor system 6 operate synchronously, moving the ton bag 4 to the waiting section 61. After the fourth grating 611 detects the ton bag 4, the third roller conveyor system 32 and the fourth roller conveyor system 6 stop, the car 31 closes its door, and moves downward via the hoist 3, leaving the ton bag 4 in the waiting section 61.

[0052] S8, the continuous feeding section 62 continues to run. When there is no ton bag 4 on the continuous feeding section 62, the waiting section 61 runs to move the ton bag 4 to the continuous feeding section 62. The continuous feeding section 62 continues to provide a force to push the ton bag 4 into the crushing roller 73. The crushing roller 73 crushes the surface of the ton bag 4 and provides a force to push the ton bag 4 outward. The barb structure 74 scratches the surface of the ton bag 4 when the ton bag 4 enters, and when the crushing roller 73 pushes the ton bag 4 outward, the ton bag 4 is stuck. The ton bag 4 continues to leak material to the feeding system 2 through the surface break until there is not much remaining material and it is completely crushed by the crushing roller 73 and falls into the feeding system 2.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, and these should also be regarded as the scope of protection of the present invention.

Claims

1. A pre-combustion furnace fuel ton bag crushing and blanking mechanism, comprising a housing (71), an opening (72) formed on one side of the housing (71), and two crushing rollers (73) disposed in the housing (71) at the opening (72), characterized in that: The crushing roller (73) rotates in a direction from between the two crushing rollers (73) to the opening (72) toward the outside. A transport mechanism for feeding materials toward the crushing roller (73) is provided outside the opening (72). A barb structure (74) is provided on the opening (72) to prevent materials from moving away from the crushing roller (73).

2. A pre-combustion furnace fuel bag crushing and dropping mechanism according to claim 1, characterized in that: Crushing teeth (731) are provided on the crushing roller (73), and the crushing teeth (731) of the two crushing rollers (73) are arranged alternately, and the crushing teeth (731) form a knife edge on one side of the crushing roller (73) in the rotation direction.

3. The pre-combustion furnace fuel bag crushing and dropping mechanism according to claim 1, characterized in that: The transport mechanism is a fourth roller conveyor system (6), which includes a waiting section (61) and a continuous feeding section (62) for feeding materials to the crushing and blanking mechanism (7), wherein the waiting section (61) and the continuous feeding section (62) operate independently; the continuous feeding section (62) includes a plurality of rollers, and a friction belt (621) is provided on the continuous feeding section (62), wherein the friction belt (621) covers the roller closest to the opening (72) and at least one roller behind the roller, and an anti-slip structure is provided on the friction belt (621).

4. The pre-combustion furnace fuel bag crushing and blanking mechanism according to claim 1, characterized in that: The barb structure (74) includes a mounting seat (741), the mounting seat (741) is fixedly connected to the inner wall of the opening (72), the mounting seat (741) is hinged to the swing seat (742) via a rotating shaft, the end of the swing seat (742) away from the crushing roller (73) forms a hinge point, a torsion spring (743) is provided outside the rotating shaft, the torsion spring (743) provides a force to swing the swing seat (742) outward, the swing seat (742) is fixedly connected to the blade (744), the side of the blade (744) away from the crushing roller (73) forms a knife edge, and the side of the blade (744) close to the crushing roller (73) is a blunt end.

5. The pre-combustion furnace fuel bag crushing and dropping mechanism according to claim 1, characterized in that: It also includes a driving motor, the output end of the driving motor is fixedly connected to the driving sprocket, and the driving sprocket cooperates with the chain; one end of a crushing roller (73) passes through the side wall of the shell (71) and is fixedly connected to the driven sprocket, and the driven sprocket cooperates with the chain, and the other end of the crushing roller (73) passes through the side wall of the shell (71) and is fixedly connected to the first gear, and the end of the other crushing roller (73) passes through the side wall of the shell (71) and is fixedly connected to the second gear, and the first gear is meshed with the second gear.

Images