Distributing device for belt type sintering machine

Abstract

The utility model relates to the technical field of corollary equipment of sintering machines, and particularly discloses a material distributing device for a belt type sintering machine, which comprises a blanking component, an obliquely arranged sieve plate positioned under the blanking component, a conveying seat positioned under the sieve plate, and a material conveying belt arranged in the conveying seat and opposite to the moving direction of a grate trolley, side discharging openings are formed in the two side faces, away from the lower inclined end of the screening plate, of the conveying base correspondingly, guide plates with the outer ends inclining downwards are installed in the side discharging openings, an offcut guide plate attached to the upper surface of the conveying belt is arranged at the upper end of the conveying base, and the outer end of the offcut guide plate extends into a gap between the conveying belt and the side wall of the conveying base. According to the material distributing device, the material layers can be laid in an up-and-down layered mode according to the size of materials, the ventilation resistance of the whole material layers is reduced, large-pore parts at the side ends of the material layers can be filled, the ventilation resistance of the whole material layers is consistent, and the problem that decarburization sintering is not uniform is effectively solved.

Description

Technical Field

[0001] This utility model relates to the technical field of sintering machine supporting equipment, and specifically discloses a cloth feeding device for a belt sintering machine. Background Technology

[0002] Decarburization sintering of coal gangue is an important means of its resource utilization. The existing equipment for decarburization sintering of coal gangue mainly includes vertical kilns and belt sintering machines. Compared with vertical kilns, belt sintering machines have a larger processing capacity and higher efficiency and are widely used in the market.

[0003] During operation, the belt sintering machine uses a conveyor chain to move the grate trolley along the track box, successively passing through the feeding section, ignition section, sintering section, and cooling section. At the bottom of the sintering and cooling sections, an exhaust system is installed to continuously ventilate the bottom of the grate trolley, allowing air to flow downwards along the coal gangue layer, thus achieving decarburization and sintering of the material layer from top to bottom. The sintering effect of the coal gangue is not only limited by the exhaust system, but more importantly by the layered distribution of the material layer on the grate trolley. Larger-sized coal gangue should be placed at the bottom layer, while smaller-sized coal gangue should be placed on top, thereby reducing the overall ventilation resistance of the material layer and improving the sintering effect.

[0004] The existing grate trolleys mainly use multi-roller feeders for material distribution. For example, the utility model application with application number 201220341223.0 discloses a multi-roller feeder for sintering machines, which includes feed rollers and a baffle plate at the outlet of the feed table composed of feed rollers. The multi-roller feeder disclosed in this patent has a baffle plate at the discharge port of the feeding table, which can adjust the feeding of the mixture. However, this type of multi-roller feeder cannot achieve a layered distribution of material with gradually increasing particle size from top to bottom. More importantly, after the coal gangue is poured onto the grate trolley, the large-sized coal gangue will abut against the side walls of the grate trolley due to the material accumulation characteristics, while the small particles are difficult to fill into the material layer pores between the side ends of the material layer and the side walls of the grate trolley. This results in large pores at both ends of the material layer and small pores in the middle, resulting in low ventilation resistance at both ends and high ventilation resistance in the middle. During the subsequent continuous sintering process, the entire material layer will exhibit a phenomenon of sintering from both ends to the middle, which cannot guarantee uniform sintering from top to bottom and seriously affects the sintering uniformity of the coal gangue. Therefore, in view of the above-mentioned shortcomings of existing multi-roller feeders for sintering machines, this application proposes a newly designed feeder for belt sintering machines. Utility Model Content

[0005] The purpose of this invention is to provide a feeding device for a belt sintering machine to solve the problem that existing multi-roller feeders cannot achieve layered feeding of coal gangue according to size and cannot fill small particles into the material layer pores between the side end of the material layer and the side wall of the grate trolley, resulting in different ventilation resistance on both sides and in the middle of the material layer, leading to uneven subsequent sintering of coal gangue.

[0006] This utility model is achieved through the following technical solution:

[0007] A feeding device for a belt sintering machine includes a feeding assembly, an inclined screen plate located directly below the feeding assembly, a conveyor seat located directly below the screen plate, a conveyor belt located in the conveyor seat moving in the opposite direction to the grate trolley, and the discharge end of the conveyor belt located inside the inclined end of the screen plate, the conveyor belt being centrally located in the conveyor seat, and a gap being reserved between the side end of the conveyor belt and the side wall of the conveyor seat, side discharge ports being opened on both sides of the conveyor seat away from the inclined end of the screen plate, and a guide plate with its outer end inclined downward being installed in the side discharge port, an edge guide plate being provided on the upper end of the conveyor seat above the side discharge port, which is in contact with the upper surface of the conveyor belt, and the outer end of the edge guide plate extending into the gap between the conveyor belt and the side wall of the conveyor seat.

[0008] As a further feature of the above solution, a support is provided on the upper end of the conveyor seat located above the side discharge port, and a telescopic drive component is provided on the support, which is connected to the side material guide plate.

[0009] As a further provision of the above scheme, the upper end of the guide plate extends into the inner circle of the conveyor belt, the lower end of the guide plate extends out of the outer side of the conveyor seat, and the distance between the lower ends of the two guide plates is equal to the width of the inner cavity of the grate trolley.

[0010] As a further feature of the above scheme, ear plates are welded to both ends of the screen plate, and springs are connected to the ear plates. The screen plate is connected to the feeding assembly or the base of the belt sintering machine through the springs. A vibration motor is also provided on the screen plate.

[0011] As a further provision of the above solution, the feeding assembly includes a hopper, and a grooved roller is rotatably mounted at the lower end of the hopper, with a feeding motor connected to one end of the grooved roller.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The material feeding device disclosed in this patent first screens the discharged coal gangue material by size during operation. Larger coal gangue material that has not passed the screen slides down from the bottom of the screen and is laid on the bottom of the grate trolley. Smaller coal gangue material that has passed the screen is discharged by the conveyor belt and falls on the laid larger coal gangue material. This allows the material layer on the grate trolley to be laid in layers according to the size of the material, thereby effectively reducing the ventilation resistance of the entire material layer and facilitating subsequent exhaust calcination.

[0014] This patent further improves upon the design of the edge guide plate, guide plate, and side discharge port. This design ensures that during the conveyor belt transport of small-diameter coal gangue after sieving, a small portion of the material at the side end is obstructed and guided by the edge guide plate, ultimately falling onto the guide plate and being discharged from the side discharge port. This allows the discharged small-particle coal gangue to fall along the side wall of the grate trolley, filling the large pores at the side of the material layer. This ensures consistent ventilation resistance throughout the material layer, effectively solving the problem of uneven decarburization and sintering caused by good ventilation on both sides and poor ventilation in the middle of the material layer. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0017] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;

[0018] Figure 3 This is a schematic diagram of the front view of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the conveyor belt, conveyor seat, guide plate, etc. in this utility model;

[0020] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the silo in this utility model. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-5 This application will be described in detail with reference to the embodiments. Example 1

[0023] Example 1 discloses a feeding device for a belt sintering machine, including a hopper 1 and a roller feeder. The roller feeder includes a grooved roller 2 rotatably mounted at the lower end of the hopper 1, and a feeding motor 3 connected to one end of the grooved roller 2 and mounted on the lower side of the hopper 1. Multiple axially arranged grooves are evenly distributed circumferentially on the roller body of the grooved roller 2. During the rotation of the grooved roller 2 driven by the feeding motor 3, coal gangue material can be quantitatively excavated through the grooves and then quantitatively discharged from the lower end of the hopper.

[0024] An inclined screen plate 4 is installed at the lower outlet of the silo 1, with the upper inclined end of the screen plate 4 directly below the lower outlet of the silo 1. The screen plate 4 has screen holes 401 of appropriate size, allowing small particles in the coal gangue to pass through the screen holes 401. In addition, ear plates 402 are welded to both the front and rear ends of the screen plate 4. Springs 403 are connected to the ear plates 402, and the screen plate 4 is connected to the silo 1 or the base of the entire sintering machine through the springs 403. A vibration motor 5 is also installed on the side of the screen plate 4, so that the vibration motor 5 can drive the screen plate 4 to vibrate at high frequency, accelerating the screening of the coal gangue and preventing the screen holes from clogging.

[0025] A conveyor seat 6 is located directly below the sieve plate 4. The front and rear ends of the conveyor seat 6 can also be fixedly connected to the hopper 1 or the base of the entire sintering machine via connecting plates 600. A horizontally arranged conveyor belt 7 is installed in the conveyor seat 6. The conveyor motor 8 installed on the side of the conveyor seat 6 is connected to the end of the belt roller at one end of the conveyor belt 7. In the specific design, the width of the conveyor seat 6 is equal to the width of the sieve plate 4, and the width of the conveyor belt 7 is 6-10cm smaller than the width of the sieve plate 4. The conveyor belt 7 is centrally located in the conveyor seat 6, so that there is a gap of about 3-5cm between the front and rear ends of the conveyor belt 7 and the side wall of the conveyor seat 6. At the same time, the discharge end of the conveyor belt 7 is located inside the inclined end of the sieve plate 4.

[0026] A side discharge port 601 is provided on the front and rear sides of the conveyor seat 6 on the side away from the inclined end of the screen plate 4. A guide plate 602 with the outer end inclined downward is installed in the side discharge port 601. The upper end of the guide plate 602 extends into the inner ring of the conveyor belt 1, and its lower end extends out of the outer side of the conveyor seat 6 by a certain distance. The distance between the lower ends of the two guide plates 602 is equal to the width of the inner cavity of the grate trolley 100 in the belt sintering machine, so that the coal gangue material discharged from the guide plate 602 can fall closely against the two side walls of the grate trolley 100.

[0027] A bracket 603 is welded to the upper end of the conveyor seat 6 above the side discharge port 601. A cylinder 10 is installed on the upper surface of the bracket 603. Of course, the cylinder 10 can also be replaced by other telescopic drive components, such as hydraulic cylinders or electric push rods. Finally, an edge material guide plate 9 is connected to the lower end of the cylinder 10. The outer end of the edge material guide plate 9 extends into the gap between the conveyor belt 7 and the side wall of the conveyor seat 6. Under the action of the cylinder 10, the edge material guide plate 9 can be made to fit against the upper surface of the conveyor belt 7.

[0028] In the operation of the feeding device disclosed in Embodiment 1, the moving direction of the grate trolley 100 is opposite to the conveying direction of the conveyor belt 7. The coal gangue material in the hopper 1 is first discharged from the bottom under the combined action of the trough roller 2 and the feeding motor 3, and then falls onto the upper surface of the screen plate 4.

[0029] The coal gangue falling on the upper surface of the screen plate 4 slides down rapidly along the upper surface of the screen plate 4 under its own gravity and the high-frequency vibration of the vibrating motor. During the slide, some small coal gangue particles pass through the screen holes 401 and fall onto the conveyor belt 7. Other large coal gangue particles that do not pass through the screen holes 401 slide down from the lower inclined end of the screen plate 4 and accumulate at the bottom of the grate trolley 100.

[0030] Subsequently, when the grate trolley 100, which has large-sized coal gangue laid at the bottom, moves to directly below the discharge end of the conveyor belt 7, the conveyor belt 7 will discharge the received small-sized coal gangue material and then cover the upper layer of large-sized coal gangue, ensuring that the coal gangue material layer in the grate trolley 100 is arranged in layers according to size, thus ensuring the ventilation effect of the subsequent material layer.

[0031] Furthermore, during the process of conveying the received small coal gangue particles to the lower inclined end of the screen plate 4 via the conveyor belt 7, some small coal gangue particles on the front and rear sides of the upper surface of the conveyor belt 7 away from the lower inclined end of the screen plate 4 will be blocked by the edge guide plate 9. Under the guidance of the edge guide plate 9, they will fall onto the corresponding guide plate 602, and then be discharged from the side discharge port 601 by the guide plate 602. They will then fall down close to the two side walls of the grate trolley 100, thereby replenishing the side end material layer where the large-sized coal gangue is in contact with the side wall of the grate trolley 100. This allows the small coal gangue particles that are discharged from the side to fill the large pores on the side end of the material layer, effectively solving the problem of uneven decarburization and sintering caused by good ventilation on both sides and poor ventilation in the middle of the material layer.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fabric feeding device for a belt sintering machine, comprising a feeding assembly, characterized in that, An inclined screen plate is located directly below the feeding assembly, and a conveyor seat is located directly below the screen plate. The conveyor seat contains a conveyor belt that moves in the opposite direction to the grate trolley, and the discharge end of the conveyor belt is located inside the inclined end of the screen plate. The conveyor belt is centrally located in the conveyor seat, and a gap is reserved between the side end of the conveyor belt and the side wall of the conveyor seat. Side discharge ports are opened on both sides of the conveyor seat away from the inclined end of the screen plate, and a guide plate with its outer end tilting downward is installed in the side discharge port. An edge guide plate that fits against the upper surface of the conveyor belt is located on the upper end of the conveyor seat above the side discharge port, and the outer end of the edge guide plate extends into the gap between the conveyor belt and the side wall of the conveyor seat.

2. The fabric feeding device for a belt sintering machine according to claim 1, characterized in that, A support is provided on the upper end of the conveyor seat located above the side discharge port, and a telescopic drive component is provided on the support. The telescopic drive component is connected to the side material guide plate.

3. The fabric feeding device for a belt sintering machine according to claim 1, characterized in that, The upper end of the guide plate extends into the inner ring of the conveyor belt, and the lower end of the guide plate extends out of the outer side of the conveyor seat. The distance between the lower ends of the two guide plates is equal to the width of the inner cavity of the grate trolley.

4. The fabric feeding device for a belt sintering machine according to claim 1, characterized in that, Both ends of the screen plate are welded with ear plates, and springs are connected to the ear plates. The screen plate is connected to the feeding assembly or the base of the belt sintering machine through the springs. A vibration motor is also installed on the screen plate.

5. The fabric feeding device for a belt sintering machine according to claim 1, characterized in that, The feeding assembly includes a hopper, and a grooved roller is rotatably mounted at the lower end of the hopper. One end of the grooved roller is connected to a feeding motor.

Images