Cleaning device for high-temperature materials at bottoms of roller bars of roller way kiln

Abstract

The utility model discloses a cleaning device for high-temperature materials at the bottom of a roller bar of a roller way kiln, which comprises a material collecting barrel, and a negative pressure generating device used for adjusting internal pressure, a hose communicated with the bottom of the roller bar of the roller way kiln and used for collecting the materials and a pressure gauge used for monitoring the negative pressure value in the barrel and thoroughly cleaning the materials are arranged on the collecting barrel. According to the device, materials accumulated at the bottom of the roller are cleaned under the condition of no shutdown, and shutdown loss is avoided; the suction force is adjusted by adjusting the negative pressure value in the device, large-particle-size caking materials are thoroughly cleaned, and cleaning is more thorough; a deflection baffle is arranged at the feeding hole, and a labyrinth type airflow channel is arranged at the top of the collecting barrel, so that the blockage probability of a filter element and a negative pressure generating device is avoided; the crushing device is used for crushing caked materials, and the vibrating screening device is used for screening the materials, so that the materials are recycled; the device is simple in structure, convenient to operate, low in manufacturing cost and wide in applicability.

Description

Technical Field

[0001] The utility model relates to a cleaning device, in particular to a cleaning device for high-temperature materials at the bottom of a roller rod of a roller kiln. Background Art

[0002] In the production of lithium battery cathode materials, roller hearth kilns serve as sintering equipment. Powdered material is placed in a crucible, which is then placed on rollers. The rollers rotate continuously, advancing the sintered product in sequence, sintering the powder during this process. During rotation, the crucible shakes, causing the powder to spill onto the bottom of the rollers. As the equipment operates, the material accumulates at the bottom of the rollers. If not cleaned promptly, the powder can accumulate to the point where it submerges the rollers, creating an electrostatic reaction that can damage them and potentially cause fires. Due to the semi-enclosed nature of the roller hearth kiln and the high temperatures of the materials, accumulated material is difficult to clean. Cleaning and maintenance are costly, pose numerous safety risks, and generally require equipment downtime. This downtime inevitably results in lost production capacity, impacting the company's profitability. At the same time, the powder at the bottom of the roller will clump after a long period of accumulation, which makes cleaning difficult. At the same time, the cleaned powder needs to be transported to fixed equipment for crushing, screening and recycling, which increases the workload of employees. During the cleaning, transportation and crushing, screening and recycling process, the powder is prone to dust pollution, polluting the working environment and endangering the health of workers. Utility Model Content

[0003] Purpose of the utility model: The purpose of the utility model is to thoroughly and conveniently clean the high-temperature materials at the bottom of the roller rod, and to provide a cleaning device for the high-temperature materials at the bottom of the roller rod of a roller kiln.

[0004] Technical solution: The device for cleaning high-temperature materials at the bottom of the roller of a roller kiln described in the utility model includes a material collecting cylinder, which is provided with a negative pressure generating device for adjusting the internal pressure, a hose connected to the bottom of the roller of the roller kiln for collecting materials, and a pressure gauge for monitoring the negative pressure value in the cylinder to thoroughly clean the materials.

[0005] Furthermore, a partition plate is installed above the collection tube to enhance material sedimentation. The end of the partition plate, remote from the hose inlet, is equipped with an airflow port for gas flow in and out of the tube. The opposite end of the top wall of the collection tube is connected to a negative pressure generator. A filter element is installed between the collection tube and the negative pressure generator to filter material and prevent clogging. Several baffles are installed between the partition plate and the top wall of the collection tube to further enhance material sedimentation. These baffles are fixed at intervals on the partition plate or the top wall of the collection tube to form a labyrinthine airflow channel, gradually intercepting material from entering the filter element and the negative pressure generator to prevent clogging.

[0006] Furthermore, the filter element is equipped with a backflush device for cleaning the filter element and airflow channel. After the device has been running for a certain period of time, the valves of the hose, the material outlet valve, and the negative pressure suction pipe are closed, and the valve of the backflush device is opened. The backflush device is then used to clean the filter element, the labyrinth-shaped airflow channel, and the vibrating screening device to prevent blockage.

[0007] Furthermore, a deflector baffle is provided at the inlet of the hose, and a vibrating screening device is provided below the isolation plate. This allows material entering the collection barrel to quickly fall onto the vibrating screening device while preventing further material from entering the labyrinthine airflow channel and clogging the filter element and negative pressure generating device. A cleaning port is provided on the outer wall of the collection barrel for cleaning the filter residue from the vibrating screening device.

[0008] Furthermore, a crushing device is provided at the front end of the hose entering the collecting cylinder, including several circular crushing blades and several linear crushing blades arranged at radial intervals, which can crush the high-temperature material in all directions and screen it through a vibrating screening device before collecting and reusing it.

[0009] Furthermore, the outer wall of the collecting tube is provided with a heat insulation layer to prevent high-temperature materials from heating up the collecting tube and easily scalding the operator; a material outlet is provided at the bottom for recycling materials, and universal wheels facilitate its movement.

[0010] Beneficial effects: Compared with the prior art, the utility model has the following advantages: 1. The material accumulated at the bottom of the roller can be cleaned without stopping the machine, thus avoiding shutdown losses; 2. The suction force can be adjusted by adjusting the negative pressure value in the device to thoroughly clean the agglomerated materials with large particle size, and the cleaning is more thorough; 3. The feed port is provided with a deflection baffle and a labyrinth-shaped air flow channel is provided on the top of the collecting cylinder to avoid the probability of blockage of the filter element and the negative pressure generating device; 4. The crushing device crushes the agglomerated materials and the vibrating screening device screens the materials to realize the recycling and reuse of the materials; 5. It has a simple structure, easy operation, low production cost and wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the crushing device of the present invention. DETAILED DESCRIPTION

[0013] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0014] like Figure 1The device shown here is for cleaning high-temperature materials from the bottom of rollers in a roller hearth kiln. It includes a material collection tube 2, topped with an isolation plate 212 for increasing material sedimentation. An air flow port 213 is located at the end of isolation plate 212, away from the inlet of a hose 208, to allow air to flow in and out of the tube. Several baffles 206 are located between isolation plate 212 and the top wall of the collection tube 2 to further increase material sedimentation. Baffles 206 are fixed to isolation plate 212 or the top wall of the collection tube 2 at intervals. A filter element 205 is located on the top wall of the collection tube 2 at the end opposite the air flow port 213. The other end of the filter element 205 is connected to a negative pressure generating device 211 via a negative pressure suction pipe 201. The negative pressure generating device 211 is equipped with a compressed air pipe 209. The filter element 205 is also equipped with a backflush device 204 for cleaning the filter element and the air flow channel. A vibration screening device 217 is provided below the isolation plate 212 , and a vibration motor 215 for driving the vibration screening device 217 and a cleaning port 216 for cleaning filter residue from the vibration screening device are provided on the outer wall of the collecting cylinder 2 .

[0015] The side wall of the collecting cylinder 2 is provided with a hose 208 connected to the bottom of the roller rod of the roller kiln for collecting materials. A deflection baffle 219 is provided at the inlet of the hose 208. A crushing device 1 is provided at the front end of the hose 208 entering the collecting cylinder 2. Figure 2 The crushing device 1 shown includes a plurality of circular crushing blades 101 , and a plurality of linear crushing blades 102 are radially spaced apart from the circular crushing blades 101 .

[0016] The collecting cylinder 2 is also provided with a pressure gauge 218 for monitoring the negative pressure value in the cylinder to thoroughly clean the material, an insulating layer 214 is provided on the outer wall, a material outlet 220 and universal wheels 221 for easy movement are provided at the bottom.

[0017] When in use, open the lock of the universal wheel 221 and push the cleaning device to the side of the roller kiln, extend the hose 208 into the material accumulation area at the bottom of the roller, ensure that the valve 207 of the hose 208, the material outlet 220 valve and the valve 203 of the back-blowing device 204 are closed, open the valve 202 of the negative pressure suction pipe 201 and the valve 210 of the compressed air pipe 209, and suck the air from the collection tube 2 through the air flow port 213 into the labyrinthine air flow channel composed of the isolation plate 212, the baffle 206 and the top wall of the collection tube 2 to further intercept the materials mixed in the air and prevent the pipeline from being blocked, so that the inside of the collection tube 2 is in a negative pressure state, and the negative pressure value in the collection tube 2 is adjusted according to the detection data of the pressure gauge 218, and then the suction force is adjusted to thoroughly clean the materials accumulated at the bottom of the roller. After adjusting to the appropriate negative pressure, valve 202 of negative pressure suction pipe 201 and valve 210 of compressed air pipe 209 are closed. Valve 207 of hose 208, valve 220 of material outlet, and valve 203 of backflush device 204 are opened. High-temperature material accumulated at the bottom of the roller is collected through hose 208, crushed by crushing device 1, and then enters collection drum 2. After passing through baffle 219 at the inlet, it falls into vibrating screening device 217 for screening and is collected at the bottom of collection drum 2. The collected material is collected through material outlet 220 and returned to production. When the device is not in operation, the filter residue on vibrating screening device 217 is cleaned through cleaning port 216. After the device has been in operation for a certain period of time, valve 207 of hose 208, valve 220 of material outlet, and valve 202 of negative pressure suction pipe 201 are closed. Valve 203 of backflush device 204 is opened. Backflush device 204 is used to clean filter element 205, the labyrinth-shaped airflow channel, and the vibrating screening device to prevent blockage.

Claims

1. A device for cleaning high-temperature materials at the bottom of roller kiln rollers, characterized in that: The collecting cylinder (2) is provided with a negative pressure generating device (211) for adjusting the internal pressure, a hose (208) connected to the bottom of the roller of the roller kiln for collecting the material, and a pressure gauge (218) for monitoring the negative pressure value in the cylinder to thoroughly clean the material.

2. The device for cleaning high-temperature materials at the bottom of roller kiln rollers according to claim 1 is characterized in that: An isolation plate (212) for increasing material sedimentation is provided on the upper portion of the collecting cylinder (2). An air flow port (213) for allowing gas to flow inside and outside the cylinder is provided at one end of the isolation plate (212) away from the inlet of the hose (208). The opposite end of the top wall of the collecting cylinder (2) is connected to a negative pressure generating device (211).

3. The device for cleaning high-temperature materials at the bottom of roller kiln rollers according to claim 2, characterized in that: A plurality of baffles (206) are provided between the isolation plate (212) and the top wall of the collecting cylinder (2) for further increasing material sedimentation. The baffles (206) are fixed at intervals on the isolation plate (212) or the top wall of the collecting cylinder (2).

4. The device for cleaning high-temperature materials at the bottom of roller kiln rollers according to claim 2, characterized in that: A filter element (205) is provided between the collecting cylinder (2) and the negative pressure generating device (211) for filtering materials to prevent clogging.

5. The device for cleaning high-temperature materials at the bottom of roller kiln rollers according to claim 4, characterized in that: The filter element (205) is provided with a back-flushing device (204) for cleaning the filter element and the air flow channel.

6. The device for cleaning high-temperature materials at the bottom of roller kiln rollers according to claim 2, characterized in that: A vibration screening device (217) is provided below the isolation plate (212), and a cleaning port (216) for cleaning filter residue from the vibration screening device is provided on the outer wall of the collecting cylinder (2).

7. The device for cleaning high-temperature materials at the bottom of roller kiln rollers according to claim 1, characterized in that: A deflection baffle (219) is provided at the inlet of the hose (208).

8. The device for cleaning high-temperature materials at the bottom of roller kiln rollers according to claim 1, characterized in that: A crushing device (1) is provided at the front end of the hose (208) entering the collecting cylinder (2).

9. The device for cleaning high-temperature materials at the bottom of roller kiln rollers according to claim 8, characterized in that: The crushing device (1) comprises a plurality of circular crushing blades (101), and a plurality of linear crushing blades (102) are arranged at intervals in the radial direction of the circular crushing blades (101).

10. The device for cleaning high-temperature materials at the bottom of roller kiln rollers according to claim 1, characterized in that: The outer wall of the collecting cylinder (2) is provided with a heat insulating layer (214), and the bottom is provided with a material outlet (220) and universal wheels (221) for facilitating its movement.

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