Anti-breaking bucket type binning device based on energy conservation and environmental protection

Abstract

The invention discloses an energy-saving and environment-friendly anti-breaking bucket type binning device which comprises two cylindrical bins and a belt conveyor arranged above the cylindrical bins, two conical storage bins are arranged at the bottom of each cylindrical bin, a bearing support is arranged at the tops of the two cylindrical bins, and a bucket type chain conveyor is arranged on the upper middle portion in each cylindrical bin. The conical storage bin and the bucket type chain conveyors are both fixedly installed on the bearing support, the top of each cylindrical bin is provided with a buffer hopper used for discharging lump coal to the bucket type chain conveyor under the buffer hopper, and the lower end of each bucket type chain conveyor is adjacent to an upper port of the conical storage bin and located on the center line of the cylindrical bin. According to the lump coal bunker, lump coal materials are uninterruptedly loaded, little crushing of lump coal in the loading process can be effectively controlled, main equipment is arranged in the cylindrical bunker, the effects of reducing dust and improving the field working environment are achieved, noise is lowered, and the influence on the physical and psychological health of field workers is relieved.

Description

Technical Field

[0001] The invention belongs to the technical field of energy conservation and environmental protection, and specifically relates to an anti-crushing bucket-type silo loading device based on energy conservation and environmental protection. Background Art

[0002] As an important chemical raw material, lump coal has always been in short supply in the coal market, and its selling price is more than 10% higher than that of similar fine coal. However, in the process of coal transportation, transfer, washing, storage, etc., the problem of lump coal crushing is particularly prominent, especially in the process of warehousing. The crushing of lump coal not only causes the lump coal rate to drop by more than 20% to 30%, but also seriously affects the economic benefits of the enterprise. Improving the lump coal rate is a systematic project, involving the entire process from coal mining to loading and storage. Due to the high price and wide demand of lump coal in the market, how to reduce the lump coal breakage rate in each production and transportation process and increase the proportion of lump coal has become the key work content to improve the efficiency of the enterprise. In the process of coal material transportation and washing, the large drop in the transfer link and the high final speed of the material cause the lump coal to collide with each other and break, which seriously affects the output and quality of the lump coal. At the same time, it has a lot of dust, which has a great impact on the health of workers. Therefore, for anthracite mines, it is particularly important to reduce the crushing during silo filling and reduce the lump coal limit rate. At present, the block protection methods that have been successfully applied in China mainly include landslide silo, cylindrical silo + telescopic chute, cylindrical silo + spiral chute, spiral chute anti-crushing technology, block coal anti-crushing buffer device, etc. The spiral chute technology is the most mature and widely used. These methods have played a certain role in reducing the crushing of block coal, but each method has its limitations and disadvantages. Summary of the invention

[0003] The purpose of the present invention is to provide an energy-saving and environmentally friendly anti-crushing bucket-type silo loading device which reduces dust pollution, consumes less energy, and has a high degree of intelligence.

[0004] In order to solve the above technical problems, the present invention adopts the following technical scheme: an energy-saving and environmentally friendly anti-crushing bucket-type loading device, comprising two cylindrical silos arranged side by side on the left and right, a belt conveyor is arranged above the two cylindrical silos, two conical storage silos are arranged at the bottom of each cylindrical silo, and a load-bearing bracket is arranged on the top of the two cylindrical silos. A bucket chain conveyor is arranged in the middle and upper part of each cylindrical body, and the conical storage silo and the bucket chain conveyor are fixedly installed on the load-bearing bracket. A buffer bucket is arranged on the top of each cylindrical silo for lowering coal blocks to the bucket chain conveyor directly below, and the discharge port of the belt conveyor is connected to the upper port of the buffer bucket. The lower end of the bucket chain conveyor is adjacent to the upper port of the conical storage silo and is located on the center line of the cylindrical silo; a vertically arranged maintenance ladder is fixedly connected to the load-bearing bracket, and the maintenance ladder is adjacent to the bucket chain conveyor.

[0005] The bucket chain conveyor includes a driving sprocket, an electromagnetic brake sprocket, a driven sprocket, a chain and a plurality of hoppers. The driving sprocket, the electromagnetic brake sprocket and the driven sprocket are arranged at the vertices of a right triangle in a vertical plane. The driving sprocket and the electromagnetic brake sprocket are located at the same height and are spaced apart on the left and right. The driven sprocket is located directly below the electromagnetic brake sprocket. The driving sprocket, the electromagnetic brake sprocket and the driven sprocket are connected by a chain transmission. A plurality of hoppers are evenly fixed on the chain along the length direction of the chain. When the hopper moves between the driven sprocket and the electromagnetic brake sprocket, it is located directly below the discharge port at the lower end of the buffer bucket.

[0006] The load-bearing bracket is provided with a drop point lifting and adjusting mechanism, which includes a vertical track, a horizontal track, a power drive device and a track electromagnetic brake. The vertical track and the horizontal track are fixed on the load-bearing bracket. Both ends of the central axis of the driven sprocket are rollingly connected to the vertical track through a first roller assembly, and both ends of the central axis of the driving sprocket are rollingly connected to the horizontal track through a second roller assembly. The power drive device is installed on the second roller assembly to drive the second roller assembly to move along the horizontal track, and the track electromagnetic brake is installed on the second roller assembly to brake and position the second roller assembly on the horizontal track.

[0007] It also includes an automatic control system, which includes a PLC controller and a material level monitor. A feeder is provided at the discharge port at the lower end of the buffer bucket. The material level monitor is arranged on the central axis of the driven sprocket and monitors vertically downward. The PLC controller is connected to the material level monitor, the feeder, the electromagnetic brake sprocket, the track electromagnetic brake and the power drive device through control lines.

[0008] Water spray pipes are provided on the left and right sides of the upper part of the bucket chain conveyor in the cylindrical silo, and a number of atomizing nozzles spraying downwards are evenly arranged on the water spray pipes.

[0009] A plurality of baffle slides are obliquely arranged on the inner wall of the cylindrical silo at one side of the discharge port at the lower end of the buffer hopper, and the lower side edge of an upper baffle slide is adjacent to the upper side edge of an adjacent baffle slide.

[0010] By adopting the above technical scheme, each component of the present invention has the following technical effects: the load-bearing bracket is a frame structure, usually made of steel, and has sufficient strength and rigidity to bear the weight of the material and various forces during operation. The bucket chain conveyor is a bucket, which is a container for carrying materials, usually in a bucket shape, fixed on the chain. It is made of rolled and welded steel plates, and a rubber lining is arranged inside the bucket. The chain is composed of multiple groups of chain links, and a bucket is installed on each group of chain links. The material is transported by causing the sprocket to rotate due to the gravity of the material. When the movement speed of the bucket increases, the braking effect can be enhanced by increasing the current of the electromagnetic brake sprocket to ensure that the downward movement speed of the bucket is uniform and stable. The power drive device uses an electric motor, and transmits power to the second roller assembly through a coupling, a reducer and other transmission devices, driving the roller of the second roller assembly to move along the horizontal track. The driving sprocket pulls the driven sprocket up and down along the vertical track through the chain, thereby adjusting the height of the drop point when the hopper moves down to the driven sprocket. After the drop point is adjusted to the right position, the track electromagnetic brake is used to position the driving sprocket on the horizontal track. The material level monitor is the distance between the drop point of the bucket chain conveyor and the top cone point of the material in the conical storage bin.

[0011] The specific working process of the present invention is as follows: the lump coal is transported into the two buffer buckets on the top of the cylindrical silo by a belt conveyor, and the bucket on the chain performs a cyclic motion between the driving sprocket, the electromagnetic brake sprocket and the driven sprocket. A feeder is arranged at the lower port of the buffer bucket. When a hopper moves to just below the discharge port of the feeder, the electromagnetic brake sprocket brakes the chain, the hopper stops moving, and the lump coal in the buffer bucket is fed downward by the feeder, and the lump coal falls into the hopper below. The loading time is a fixed time length. After the loading time is over, the feeder stops feeding. The feeder pause time is a fixed time length. The hopper is kept in uniform motion by the dead weight of the lump coal and the action of the electromagnetic brake sprocket. When the next empty hopper moves to just below the discharge port of the feeder, the lump coal in the buffer bucket is fed downward by the feeder, and the lump coal falls into the hopper below. The feeding operation is cyclically performed. When the hopper loaded with lump coal moves to the bottom of the driven sprocket and is ready to move upward, the hopper dumps the lump coal downward to complete the unloading. As the loading process proceeds, the material level monitor located at the driven sprocket of the bucket chain conveyor detects in real time the distance between the drop point and the top cone point of the material (this distance should be less than the minimum distance that causes the material to break when it falls. This distance is the drop height of the lump coal, which is generally controlled within the range of 0.8m-1.4m. In practice, it should be measured after multiple tests based on the properties of the material). The material level monitor transmits the distance signal to the PLC controller, and the PLC controller sends different instructions to the power drive device based on the distance signal. For example, taking the cylindrical silo on the left as an example, when the distance is less than or equal to 0.8m, it means that the material level in the cylindrical silo has increased. At this time, the PLC controller sends instructions to the feeder and the power drive device. The track electromagnetic brake issues a command to move right, the feeder pauses, the track electromagnetic brake releases the positioning of the second roller assembly on the horizontal track, the power drive device starts, and drives the roller of the second roller assembly to move right along the horizontal track. The driving sprocket pulls the driven sprocket up and down along the vertical track through the chain, and the driven sprocket moves upward along the horizontal track to increase the distance between the drop point and the top cone point of the material. The power drive device stops, the track electromagnetic brake brakes, the feeder starts, and loading continues; when the power drive device moves to the rightmost side of the horizontal track, the driven sprocket rises to the highest point, and the highest control position of the cylindrical silo is reached at this time, indicating that the cylindrical silo is full and loading stops. When the distance is greater than 1.4m, it means that the material level in the silo has decreased. At this time, the PLC controller sends a command to the power drive device to move left along the horizontal track. The driven sprocket drops downward along the vertical track, reducing the distance between the drop point and the top cone point of the material, and continues to load the silo. When the power drive device moves to the leftmost side of the horizontal track, the driven sprocket reaches the lowest point, and the lowest control position of the silo is reached, indicating that the silo is empty and can be loaded.

[0012] During the coal block loading process, a large amount of dust will be generated in the cylindrical silo. Therefore, high-pressure water is supplied to the water spray pipe and sprayed into the cylindrical silo through the atomizing nozzle to reduce dust pollution and prevent dust from overflowing from the cylindrical silo.

[0013] When the feeder is loading into the hopper, some coal lumps will fall onto the baffle slide. The coal lumps that fall onto the baffle slide slide down layer by layer along the baffle slide until they slide into the storage bin. This prevents the fallen coal lumps from falling directly into the storage bin and being broken by a large impact. At the same time, the water mist sprayed by the atomizing nozzle falls on the baffle slide, which plays a lubricating role, making it easier for the fallen coal lumps to slide down and avoid blockage.

[0014] To sum up, the present invention has a scientific principle, a compact structure, is energy-saving and environmentally friendly, and can continuously load lump coal materials. The height of the drop point can be adjusted during loading to increase the loading capacity. It can not only effectively control the lump coal to have very little breakage during the loading process, but also the main equipment is arranged in the cylindrical silo, which has the effects of reducing dust and improving the on-site working environment, and it also reduces noise and alleviates the impact on the physical and mental health of on-site workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a top view of the two silos. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0017] like Figure 1 and Figure 2 As shown, an energy-saving and environmentally friendly anti-crushing bucket-type silo loading device of the present invention comprises two cylindrical silos 1 arranged side by side on the left and right, a belt conveyor 2 is arranged above the two cylindrical silos 1, two conical storage silos 3 are arranged at the bottom of each cylindrical silo 1, a load-bearing bracket 4 is arranged on the top of the two cylindrical silos 1, a bucket chain conveyor 5 is arranged in the middle and upper part of each cylindrical body, the conical storage silo 3 and the bucket chain conveyor 5 are fixedly installed on the load-bearing bracket 4, a buffer bucket 6 is arranged on the top of each cylindrical silo 1 for lowering lump coal to the bucket chain conveyor 5 directly below, the discharge port of the belt conveyor 2 is connected to the upper end of the buffer bucket 6, the lower end of the bucket chain conveyor 5 is adjacent to the upper end of the conical storage silo 3 and is located on the center line of the cylindrical silo 1; a vertically arranged maintenance ladder 20 is fixedly connected to the load-bearing bracket 4, the maintenance ladder 20 is adjacent to the bucket chain conveyor 5, and a plurality of maintenance platforms are arranged from top to bottom on the maintenance ladder 20 for performing maintenance and repair operations on the bucket chain conveyor 5.

[0018] The bucket chain conveyor 5 includes a driving sprocket 8, an electromagnetic brake sprocket 9, a driven sprocket 10, a chain 11 and a plurality of hoppers 12. The driving sprocket 8, the electromagnetic brake sprocket 9 and the driven sprocket 10 are arranged at the vertices of a right triangle in the vertical plane. The driving sprocket 8 and the electromagnetic brake sprocket 9 are located at the same height and are arranged at intervals on the left and right. The driven sprocket 10 is located directly below the electromagnetic brake sprocket 9. The driving sprocket 8, the electromagnetic brake sprocket 9 and the driven sprocket 10 are connected by the chain 11. A plurality of hoppers 12 are evenly fixed on the chain 11 along the length direction of the chain 11. When the hopper 12 moves between the driven sprocket 10 and the electromagnetic brake sprocket 9, it is located directly below the discharge port at the lower end of the buffer bucket 6.

[0019] The load-bearing bracket 4 is provided with a lifting and adjusting mechanism for the drop point, which includes a vertical rail 21, a horizontal rail 22, a power drive device 7 and a rail electromagnetic brake (not shown). The vertical rail 21 and the horizontal rail 22 are fixedly arranged on the load-bearing bracket 4. Both ends of the central axis of the driven sprocket 10 are rollingly connected to the vertical rail 21 through a first roller assembly (not shown in the figure), and both ends of the central axis of the driving sprocket 8 are rollingly connected to the horizontal rail 22 through a second roller assembly (not shown in the figure). The power drive device 7 is installed on the second roller assembly to drive the second roller assembly to move along the horizontal rail 22, and the rail electromagnetic brake is installed on the second roller assembly to brake and position the second roller assembly on the horizontal rail 22.

[0020] The present invention also includes an automatic control system, which includes a PLC controller 13 and a material level monitor 14. A feeder 15 is provided at the discharge port at the lower end of the buffer bucket 6. The material level monitor 14 is arranged on the central axis of the driven sprocket 10 and monitors vertically downward. The PLC controller 13 is respectively connected to the material level monitor 14, the feeder 15, the electromagnetic brake sprocket 9, the track electromagnetic brake and the power drive device 7 through control lines.

[0021] Water spray pipes 16 are provided on the left and right sides of the upper part of the bucket chain 11 conveyor 5 in the cylindrical silo 1, and a plurality of atomizing nozzles 17 spraying downward are evenly provided on the water spray pipes 16.

[0022] A plurality of baffle slides 18 are obliquely provided on the inner wall of the cylindrical silo 1 adjacent to the discharge port at the lower end of the buffer hopper 6 , and the lower side of an upper baffle slide 18 is adjacent to the upper side of an adjacent baffle slide 18 .

[0023] The various components of the present invention have the following technical effects: the load-bearing bracket 4 is a frame structure, usually made of steel, and has sufficient strength and rigidity to bear the weight of the material and various forces during operation. The bucket 12 of the bucket chain conveyor 5 is a container for carrying materials, usually in a bucket shape, fixed on the chain. It is made of steel plate rolling and welding, and a rubber lining is arranged inside the bucket 12. The chain 11 is composed of a plurality of groups of chain links, and the bucket 12 is installed on each group of chain links. The material is transported by causing the sprocket to rotate due to the gravity of the material. When the movement speed of the bucket 12 increases, the braking effect can be enhanced by increasing the current of the electromagnetic brake sprocket 9 to ensure that the downward movement speed of the bucket 12 is uniform and stable. The power drive device 7 uses an electric motor, and transmits power to the second roller assembly through a coupling, a reducer and other transmission devices, driving the roller of the second roller assembly to move along the horizontal track 22, and the driving sprocket 8 pulls the driven sprocket 10 through the chain 11 to move up and down along the vertical track 21, thereby adjusting the height of the drop point when the hopper 12 moves downward to the driven sprocket 10. After the drop point is adjusted to the right position, the track electromagnetic brake is used to position the driving sprocket 8 on the horizontal track 22. The material level monitor 14 is the distance between the drop point of the bucket chain 11 conveyor 5 and the top cone point of the material in the conical storage bin 3.

[0024] The specific working process of the present invention is as follows: the lump coal is transported into the two buffer hoppers on the top of the cylindrical silo by a belt conveyor, the hopper 12 on the chain 11 performs a circular motion between the driving sprocket 8, the electromagnetic brake sprocket 9 and the driven sprocket 10, and a feeder 15 is arranged at the lower end of the buffer hopper 6. When a hopper 12 moves to the position just below the discharge port of the feeder 15, the electromagnetic brake sprocket 9 brakes the chain 11, the hopper 12 stops rotating, and the lump coal in the buffer hopper 6 is fed downward by the feeder 15, and the lump coal falls into the hopper 12 below. The loading time is fixed. The timing is long, the loading time is over, and the feeder 15 stops feeding. The pause time of the feeder 15 is fixed. The hopper 12 keeps moving at a constant speed due to the weight of the coal block and the electromagnetic brake sprocket 9. When the next empty hopper 12 moves to just below the discharge port of the feeder 15, the coal block in the buffer hopper 6 is fed downward by the feeder 15, and the coal block falls into the hopper 12 below. The feeding operation is circulated in this way. When the hopper 12 loaded with coal blocks moves to the bottom of the driven sprocket 10 and is ready to move upward, the hopper 12 dumps the coal blocks downward to complete the unloading. As the loading process proceeds, the material level monitor 14 located at the driven sprocket 10 of the bucket chain 11 conveyor 5 detects in real time the distance between the drop point and the top cone point of the material (the distance should be less than the minimum distance that causes the material to break when it falls, which is the drop height of the lump coal, generally controlled within the range of 0.8m-1.4m. In practice, it should be measured after multiple tests based on the material properties). The material level monitor 14 transmits the distance signal to the PLC controller 13, and the PLC controller 13 sends different instructions to the power drive device 7 according to the distance signal. For example, taking the cylindrical silo 1 on the left as an example, when the distance is less than or equal to 0.8m, it means that the material level in the cylindrical silo 1 has increased. At this time, the PLC controller 13 sends instructions to the feeder 15, the power drive device 7 and the track. The electromagnetic brake issues a command to move to the right, the feeder 15 pauses, the track electromagnetic brake releases the positioning of the second roller assembly on the horizontal track 22, the power drive device 7 starts, and drives the roller of the second roller assembly to move to the right along the horizontal track 22, and the driving sprocket 8 pulls the driven sprocket 10 to move up and down along the vertical track 21 through the chain 11, and the driven sprocket 10 moves upward along the horizontal track 22 to increase the distance between the drop point and the top cone point of the material, the power drive device 7 stops, the track electromagnetic brake brakes, the feeder 15 starts, and continues to load the bin; when the power drive device 7 moves to the rightmost side of the horizontal track 22, the driven sprocket 10 rises to the highest point, and at this time reaches the highest control position of the cylindrical silo 1, indicating that the cylindrical silo 1 is full, and loading is stopped. When the distance is greater than 1.4m, it indicates that the material level in the silo 1 is reduced. At this time, the PLC controller 13 sends a command to the power drive device 7 to move left along the horizontal track 22. The driven sprocket 10 drops downward along the vertical track 21, shortening the distance between the drop point and the top cone point of the material, and continues to load the silo. When the power drive device 7 moves to the leftmost side of the horizontal track 22, the driven sprocket 10 reaches the lowest point, and at this time, it reaches the lowest control position of the silo 1, indicating that the silo 1 is empty and can be loaded.

[0025] During the coal block loading process, a large amount of dust will be generated in the cylindrical silo 1. Therefore, high-pressure water is supplied to the water spray pipe and sprayed into the cylindrical silo 1 through the atomizing nozzle to reduce dust pollution and prevent dust from overflowing from the cylindrical silo 1.

[0026] When the feeder 15 is loading into the hopper 12, some coal lumps will fall onto the baffle slide. The coal lumps that fall onto the baffle slide slide down layer by layer along the baffle slide until they slide into the storage bin. This prevents the fallen coal lumps from falling directly into the storage bin and being crushed by a large impact. At the same time, the water mist sprayed by the atomizing nozzle falls onto the baffle slide, which plays a lubricating role, making it easier for the fallen coal lumps to slide down and avoid clogging.

[0027] The above embodiments illustrate the basic principles and features of the present invention, but the above only illustrates the preferred embodiments of the present invention and is not limited to the embodiments. Under the inspiration of this patent, a person skilled in the art can make many forms of deformation and improvement without departing from the scope of protection of the present invention and the claims, which are all within the protection scope of the present invention. Therefore, the patent and protection scope of the present invention shall be subject to the attached claims.

Claims

1. An energy-saving and environmentally friendly anti-crushing bucket-type silo loading device, comprising two cylindrical silos arranged side by side, a belt conveyor is arranged above the two cylindrical silos, and two conical storage silos are arranged at the bottom of each cylindrical silo, characterized in that: Load-bearing brackets are provided on the top of the two cylindrical silos, and a bucket chain conveyor is provided in the middle and upper part of each cylindrical body. The conical storage silo and the bucket chain conveyor are fixedly installed on the load-bearing brackets. A buffer bucket is provided on the top of each cylindrical silo for lowering lump coal to the bucket chain conveyor directly below. The discharge port of the belt conveyor is connected to the upper port of the buffer bucket. The lower end of the bucket chain conveyor is adjacent to the upper port of the conical storage silo and is located on the center line of the cylindrical silo. A vertically arranged maintenance ladder is fixedly connected to the load-bearing bracket, and the maintenance ladder is adjacent to the bucket chain conveyor.

2. The energy-saving and environmentally friendly anti-crushing bucket-type silo loading device according to claim 1 is characterized in that: The bucket chain conveyor includes a driving sprocket, an electromagnetic brake sprocket, a driven sprocket, a chain and a plurality of hoppers. The driving sprocket, the electromagnetic brake sprocket and the driven sprocket are arranged at the vertices of a right triangle in a vertical plane. The driving sprocket and the electromagnetic brake sprocket are located at the same height and are spaced apart on the left and right. The driven sprocket is located directly below the electromagnetic brake sprocket. The driving sprocket, the electromagnetic brake sprocket and the driven sprocket are connected by a chain transmission. A plurality of hoppers are evenly fixed on the chain along the length direction of the chain. When the hopper moves between the driven sprocket and the electromagnetic brake sprocket, it is located directly below the discharge port at the lower end of the buffer bucket.

3. The energy-saving and environmentally friendly anti-crushing bucket-type silo loading device according to claim 2 is characterized in that: The load-bearing bracket is provided with a drop point lifting and adjusting mechanism, which includes a vertical track, a horizontal track, a power drive device and a track electromagnetic brake. The vertical track and the horizontal track are fixed on the load-bearing bracket. Both ends of the central axis of the driven sprocket are rollingly connected to the vertical track through a first roller assembly, and both ends of the central axis of the driving sprocket are rollingly connected to the horizontal track through a second roller assembly. The power drive device is installed on the second roller assembly to drive the second roller assembly to move along the horizontal track, and the track electromagnetic brake is installed on the second roller assembly to brake and position the second roller assembly on the horizontal track.

4. The energy-saving and environmentally friendly anti-crushing bucket-type silo loading device according to claim 3 is characterized in that: It also includes an automatic control system, which includes a PLC controller and a material level monitor. A feeder is provided at the discharge port at the lower end of the buffer bucket. The material level monitor is arranged on the central axis of the driven sprocket and monitors vertically downward. The PLC controller is connected to the material level monitor, the feeder, the electromagnetic brake sprocket, the track electromagnetic brake and the power drive device through control lines.

5. The energy-saving and environmentally friendly anti-crushing bucket-type silo loading device according to claim 1 or 2, characterized in that: Water spray pipes are provided on the left and right sides of the upper part of the bucket chain conveyor in the cylindrical silo, and a number of downward spraying atomizing nozzles are evenly arranged on the water spray pipes.

6. The energy-saving and environmentally friendly anti-crushing bucket-type silo loading device according to claim 1 or 2, characterized in that: A plurality of baffle slides are obliquely arranged on the inner wall of the cylindrical silo at one side of the discharge port at the lower end of the buffer hopper, and the lower side edge of an upper baffle slide is adjacent to the upper side edge of an adjacent baffle slide.

Images