A lime kiln refractory brick conveying device

Abstract

The utility model discloses a lime kiln refractory brick transport device, include: the wave -shaped fairlead of inclination setting, the wave crest of fairlead extends along its length direction, its high end connects lime kiln discharge gate, be equipped with a plurality of sieve residue mouth along the wave valley axis distribution on the fairlead, collect residue tank, set up in the below of fairlead and cooperate with sieve residue mouth, belt conveyor, set up in the low end below of fairlead, dust hood subassembly, set up above fairlead and belt conveyor, including the dust hood of the fairlead section and the conveying section dust hood of intercommunication, the dust hood of fairlead section is equipped with the air draft pipeline of connecting negative pressure source, the dust hood of fairlead section and conveying section dust hood thorough formation continuous channel. The utility model can inhibit dust diffusion, reduce the pollution to the scene environment and can primarily screen the broken slag and dust, reduce the subsequent sorting difficulty.

Description

Technical Field

[0001] This utility model relates to the field of lime kiln maintenance technology, specifically to a lime kiln refractory brick transportation device. Background Technology

[0002] A lime kiln is a calcining device with a kiln wall as its thermal structure, and an internal rotating discharge disc system. At the bottom of the kiln, a fan-shaped scraper device is installed on one side of the discharge disc. The periodic rotation of the disc drives the scraper to push the calcined lime material tangentially to the discharge port. The kiln wall is constructed of multiple layers of refractory material, possessing both heat reflection and heat conduction functions, and is the core structure for maintaining the thermal balance within the kiln. During long-term operation, the refractory lining bricks inside the kiln wall are subjected to a combination of high-temperature erosion, material scouring, and chemical corrosion, resulting in structural spalling and thickness reduction. Each lime kiln requires major maintenance every few years, necessitating the removal and replacement of all internal fireproof bricks.

[0003] The existing waste brick removal relies on the kiln's original discharge system. Operators control the waste brick discharge by adjusting the rotation speed of the discharge disc, and an open waste hopper is installed below the discharge port as a temporary storage and transportation device. Due to the lack of sealing and dust suppression measures, a large amount of floating dust is generated during unloading, causing environmental pollution on site. Furthermore, the waste bricks in the waste hopper are mixed with dust and debris, increasing the difficulty of subsequent sorting. Utility Model Content

[0004] The purpose of this utility model is to provide a refractory brick conveying device for lime kilns, which can suppress the spread of floating dust, reduce pollution to the on-site environment, and preliminarily screen slag and dust, reducing the difficulty of subsequent sorting.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a refractory brick conveying device for lime kilns, comprising:

[0006] An inclined, wave-shaped guide plate is provided, with the crests of the guide plate extending along its length and its high end connected to the outlet of the lime kiln. The guide plate is provided with multiple slag screens distributed along the trough axis.

[0007] A slag collection box is located below the guide plate and is matched with the slag screen opening;

[0008] A belt conveyor is located below the lower end of the guide plate;

[0009] A dust collection hood assembly is installed above the guide plate and the belt conveyor, including a guide section dust collection hood and a conveyor section dust collection hood that are connected to each other. The guide section dust collection hood is provided with an exhaust pipe connected to a negative pressure source. The guide section dust collection hood and the conveyor section dust collection hood are connected to form a continuous channel.

[0010] A further improvement of this invention is that the width of each slag opening gradually increases along the length of the guide plate, and the maximum width is less than the distance between adjacent wave crests.

[0011] A further improvement of this utility model is that the exhaust duct includes a tapered air inlet hood, a cyclone separator, and a bag filter arranged sequentially along the exhaust path. The tapered air inlet hood is connected to the dust collection hood of the guide section, and the air outlet of the bag filter is connected to a negative pressure source.

[0012] A further improvement of this utility model is that the lower end of the ash hopper of the cyclone separator is provided with a discharge valve, and the discharge valve is connected to the slag collection box through a collection pipe.

[0013] A further improvement of this utility model is that the upper end of the slag collection box is provided with a docking opening that matches the inclination angle of the guide plate, the docking opening is fixedly connected to the lower end of the guide plate, a pull-out opening is provided on one side of the slag collection box, and a pull-out collection drawer is provided inside the slag collection box, the collection drawer being slidably connected to the slag collection box.

[0014] A further improvement of this utility model is that a cleaning port is provided on the side wall of the dust collection hood of the guide section, and a baffle fixed by a locking member is rotatably connected to the cleaning port.

[0015] A further improvement of this utility model is that the distance between the apexes of two adjacent wave crests on the guide plate is 4~6cm, and the maximum width of the slag opening is 2~3cm.

[0016] A further improvement of this utility model is that a brush plate is detachably connected to the lower back of the guide plate, which is arranged along the width direction of the belt conveyor, and the bristles of the brush plate are in contact with the belt of the belt conveyor.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention can collect floating dust by setting up a dust collection hood assembly, effectively suppressing the spread of floating dust and reducing pollution to the on-site environment. In addition, by setting up a guide plate, the slag and dust can be preliminarily screened through the slag screening port on the guide plate, reducing the difficulty of subsequent sorting. The screened waste bricks are transported away by belt conveyor, improving transportation efficiency.

[0019] The dust collection hood assembly of this utility model, through the cooperation of the flow guide section dust collection hood, the conveying section dust collection hood and the air inlet hood, surrounds the waste brick conveying path, physically blocking the spread of dust and enhancing the adsorption effect.

[0020] The width of the slag screening opening of this utility model gradually expands along the length of the guide plate, which can gradually screen slag of different particle sizes, so that the slag screening opening can effectively intercept fine impurities, while the adjacent wave crests provide support, allowing large pieces of waste bricks to pass through.

[0021] In this invention, large particles of debris are first separated by a cyclone separator, and then fine dust is filtered by a bag filter, significantly improving dust removal efficiency. The separated debris is discharged through a discharge valve and a collection pipe into a slag collection box for unified treatment, reducing secondary pollution.

[0022] In the existing technology, waste bricks are transported by waste hopper and then transferred to the waste disposal site by truck. However, this utility model uses a belt conveyor to transport waste bricks instead of a waste hopper, reducing manpower consumption. The belt conveyor can also be used in conjunction with an elevator to transfer the waste bricks into the truck bed, realizing automatic transfer. Attached Figure Description

[0023] Figure 1 This is a side view of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the guide plate structure of this utility model.

[0025] In the diagram, 1-guide plate, 2-screening port, 3-slag collection box, 4-belt conveyor, 5-dust hood for guide section, 6-dust hood for conveying section, 7-retractable air inlet hood, 8-collection drawer, 9-baffle, 10-brush plate, 11-peak, 12-trough, 13-connecting plate. Detailed Implementation

[0026] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1: Combination Figures 1-2 It is known that a lime kiln refractory brick conveying device includes:

[0028] The inclined wave-shaped guide plate 1 has its crests extending along its length and its high end connected to the lime kiln outlet. The guide plate 1 is provided with multiple slag screens 2 distributed along the trough axis.

[0029] The slag collection box 3 is located below the guide plate 1 and cooperates with the slag screen opening 2;

[0030] The belt conveyor 4 is located below the lower end of the guide plate 1;

[0031] A dust collection hood assembly, positioned above the guide plate 1 and the belt conveyor 4, includes a guide section dust collection hood 5 and a conveying section dust collection hood 6 connected together. The guide section dust collection hood 5 is equipped with an exhaust pipe connected to a negative pressure source, and the guide section dust collection hood 5 and the conveying section dust collection hood 6 are interconnected to form a continuous channel. Preferably, the dust collection hood assembly is securely supported by a bracket.

[0032] The width of each slag screening opening 2 gradually increases along the length of the guide plate 1, and the maximum width is less than the distance between adjacent crests. The guide plate 1 has a continuous wave-shaped structure, formed by alternating crests (upwardly convex parts) and troughs (downwardly concave parts). Preferably, each trough is provided with a slag screening opening 2. Large pieces of waste brick are guided by the crests and quickly slide down to the belt conveyor 4, while broken pieces and dust sink into the troughs and fall into the collection tray 8 of the slag collection box 3 through the slag screening opening 2.

[0033] Preferably, the distance between the apexes of two adjacent wave crests on the guide plate 1 is 4-6 cm, and the maximum width of the slag opening 2 is 2-3 cm. Preferably, the guide plate 1 is made of wear-resistant steel plate or high manganese steel.

[0034] The present invention comprises a guide plate and a dust collection hood that surrounds the flow section to form a channel that extends through both ends. One end of the channel is detachably and fixedly connected to the discharge port of the lime kiln via a surrounding plate. Preferably, the surrounding plate is bolted to the flange of the discharge port. After the material is discharged from the discharge port, it falls onto the belt conveyor 1 along the guide plate.

[0035] Preferably, the left and right ends of the guide plate 1 are provided with connecting plates for fixing to the guide section suction hood 5. The connecting plates are fixed to the guide section suction hood 5 by bolts.

[0036] The exhaust duct includes a tapered inlet hood 7, a cyclone separator, and a bag filter arranged sequentially along the exhaust path. The tapered inlet hood 7 is connected to the guide section dust collection hood 5, and the outlet of the bag filter is connected to a negative pressure source. Dust is drawn into the cyclone separator for preliminary separation. Large particles collected in the ash hopper flow back to the slag collection box through the discharge valve, while fine dust is filtered by the bag filter before being discharged. Preferably, the negative pressure source is a centrifugal fan. The tapered inlet hood 7 gradually narrows from bottom to top to facilitate dust extraction.

[0037] The cyclone separator has a discharge valve at the lower end of the ash hopper, which is connected to the slag collection box 3 via a collection pipe. Preferably, the discharge valve is a rotary valve or a double flap valve.

[0038] The upper end of the slag collection box 3 is equipped with a docking opening that matches the inclination angle of the guide plate 1. The docking opening is fixedly connected to the lower end of the guide plate 1. A pull-out opening is located on one side of the slag collection box 3, and a pull-out collection drawer 8 is installed inside the slag collection box 3. The collection drawer 8 is slidably connected to the slag collection box 3. The docking opening ensures no leakage of screened slag, improving collection efficiency. The pull-out collection drawer can be quickly replaced through the pull-out opening, improving maintenance efficiency.

[0039] The dust collection hood 5 in the flow guide section has a cleaning port on its side wall, and a baffle 9 is rotatably connected to the cleaning port and fixed by a locking device. The cleaning port facilitates regular cleaning of internal dust accumulation and clogging of the screen opening. Preferably, the dust collection hood 5 in the flow guide section has screw holes on its side wall, and the locking device is a bolt; the baffle 9 is fixed to the side wall by the bolt. The cleaning port can be rotated open for maintenance after the bolt is loosened.

[0040] A brush plate 10 is detachably connected to the lower back of the guide plate 1, which is arranged along the width direction of the belt conveyor 4. The bristles of the brush plate 10 contact the belt of the belt conveyor 4. This removes fine debris adhering to the belt surface, preventing material residue from causing belt wear. The detachable design facilitates the replacement of worn brush plates, reducing maintenance costs.

[0041] In the existing technology, waste bricks are transported by waste hopper and then transferred to the waste disposal site by truck. However, this utility model uses a belt conveyor to transport waste bricks instead of a waste hopper, reducing manpower consumption. The belt conveyor can also be used in conjunction with an elevator to transfer the waste bricks into the truck bed, realizing automatic transfer.

[0042] The working principle of the lime kiln refractory brick conveying device provided by this utility model is as follows:

[0043] After the material is discharged from the outlet of the lime kiln, it slides along the inclined direction of the guide plate 1. During the sliding process, the dust suction hood 5 and the air inlet hood 7 of the guide section work together to collect the floating dust and prevent the dust from spreading. The broken slag and the dust that has not floated are screened out through the slag screening port 2. The broken slag and the dust that has not floated fall into the collection tray 8 of the slag collection box 3. Larger pieces of waste bricks are guided by the crests and slide down to the belt conveyor 4 to be transported to the next stage.

[0044] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lime kiln refractory brick transport device, characterized by, include: A wave-shaped guide plate (1) is inclined and the crest of the guide plate (1) extends along its length direction. Its high end is connected to the discharge port of the lime kiln. The guide plate (1) is provided with multiple slag screens (2) distributed along the trough axis. The slag collection box (3) is located below the guide plate (1) and cooperates with the slag screen opening (2); A belt conveyor (4) is located below the lower end of the guide plate (1); The dust collection hood assembly is set above the guide plate (1) and the belt conveyor (4), including a guide section dust collection hood (5) and a conveying section dust collection hood (6) that are connected. The guide section dust collection hood (5) is provided with an exhaust pipe connected to a negative pressure source. The guide section dust collection hood (5) and the conveying section dust collection hood (6) are connected to form a continuous channel.

2. A lime kiln refractory brick transport device according to claim 1, characterized in that: The width of each slag opening (2) gradually increases along the length of the guide plate (1) and the maximum width is less than the distance between adjacent peaks.

3. A lime kiln refractory brick transport device according to claim 1 or 2, characterized in that: The exhaust duct includes a tapered air inlet hood (7), a cyclone separator and a bag filter arranged sequentially along the exhaust path. The tapered air inlet hood (7) is connected to the guide section dust collection hood (5), and the air outlet of the bag filter is connected to a negative pressure source.

4. A lime kiln refractory brick transport device according to claim 3, characterized in that: The cyclone separator is equipped with a discharge valve at the lower end of the ash hopper, and the discharge valve is connected to the slag collection box (3) through a collection pipe.

5. A lime kiln refractory brick transport device as claimed in claim 1, characterized in that: The upper end of the slag collection box (3) is provided with a docking box opening that matches the tilt angle of the guide plate (1). The docking box opening is fixedly connected to the lower end of the guide plate (1). A pull-out opening is provided on one side of the slag collection box (3). A pull-out collection drawer (8) is provided inside the slag collection box (3). The collection drawer (8) is slidably connected to the slag collection box (3).

6. A lime kiln refractory brick transport device according to claim 1, characterized in that: The dust collection hood (5) of the flow guide section is provided with a cleaning port on its side wall, and a baffle (9) is rotatably connected to the cleaning port by a locking member.

7. A lime kiln refractory brick transport device as claimed in claim 1, wherein: The distance between the apexes of two adjacent wave crests on the guide plate (1) is 4~6cm, and the maximum width of the slag opening (2) is 2~3cm.

8. A lime kiln refractory brick transport device according to claim 1, characterized in that: The lower back of the guide plate (1) is detachably connected to a brush plate (10) arranged along the width direction of the belt conveyor (4), and the bristles of the brush plate (10) are in contact with the belt of the belt conveyor (4).

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