A cleaning device for a drum linter screen

Abstract

The utility model discloses a kind of drum type cotton collector screen plate cleaning device, it is related to rock wool production technical field, its technical scheme is as follows: including several fan-shaped spray heads, several high-pressure pulse valves, high-pressure water pump and the electric control system for controlling high-pressure pulse valve action;Several fan-shaped spray heads are arranged in drum type cotton collector, fan-shaped spray head is relatively arranged in the screen plate of drum type cotton collector, several fan-shaped spray heads are connected with several high-pressure pulse valves by high-pressure hose, several high-pressure pulse valves are connected with high-pressure water pump, the electric control system is electrically connected with several high-pressure pulse valves to control the single cycle action of several high-pressure pulse valves.

Description

Technical Field

[0001] This utility model relates to the field of rock wool production technology, and in particular to a screen cleaning device for a drum-type cotton collecting machine. Background Technology

[0002] The main raw materials of rock wool are natural rocks such as basalt and industrial waste. These raw materials are melted in a high-temperature furnace, typically reaching temperatures of around 1500℃. The molten material is fed into a centrifuge, where high-speed rotation throws the molten material out, forming long, thin fibers. During the fiber-forming process, resin adhesive is sprayed onto the fibers. This resin adhesive helps bond the fibers together, thus forming a strong rock wool felt. The fibers are collected by a fiber collector, whose main function is to evenly spread the fibers into a thin layer, i.e., primary felt. This process is similar to making a cotton quilt. After the rock wool fibers collected by the fiber collector form primary felt, they are conveyed to a pendulum system via a conveyor belt. The pendulum system evenly distributes the primary felt on the conveyor belt by oscillation. This helps to form rock wool boards or felts of uniform thickness.

[0003] The inventors discovered during their research that while the cotton collector is collecting fibers, some fiber balls are thrown into the mesh holes of the drum-type cotton collector by the centrifugal force of the centrifuge and cannot be removed. Additionally, some fibers and resin adhesive also stick to the mesh, causing blockage and affecting the passage of negative pressure air. Traditional cleaning devices use a motor to drive a chain or slider to reciprocate on a slide rail, simultaneously driving a high-pressure cleaning nozzle to reciprocate and clean the mesh. Drum-type cotton collectors require both internal and external cleaning components. Traditional cleaning methods are only suitable for external cleaning. During normal production, if electrical or mechanical faults occur, maintenance personnel cannot access the internal cleaning area, resulting in a large amount of adhesive residue forming on the inside of the mesh, affecting the permeability of the cotton collector's mesh and thus impacting the cotton distribution effect. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a drum-type cotton collecting machine mesh cleaning device that utilizes the crane's own kinetic energy and modular support fixtures to achieve efficient and safe wheel replacement without relying on external lifting equipment.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: In a first aspect, embodiments of this utility model provide a screen cleaning device for a drum-type cotton collector, comprising a plurality of fan-shaped nozzles, a plurality of high-pressure pulse valves, a high-pressure water pump, and an electrical control system for controlling the operation of the high-pressure pulse valves; the plurality of fan-shaped nozzles are disposed inside the drum-type cotton collector, and are positioned opposite to the screen of the drum-type cotton collector; the plurality of fan-shaped nozzles are connected to the plurality of high-pressure pulse valves via high-pressure hoses; the plurality of high-pressure pulse valves are all connected to the high-pressure water pump; and the electrical control system is electrically connected to the plurality of high-pressure pulse valves to control the single-cycle operation of the plurality of high-pressure pulse valves.

[0006] A further technical solution is that a plurality of the aforementioned fan-shaped nozzles are arranged at intervals along the width direction of the drum-type cotton collector, a cotton-collecting hollow shaft is provided at the center of the drum-type cotton collector, a conduit is provided on the cotton-collecting hollow shaft, and the high-pressure hose is installed through the conduit.

[0007] In a further technical solution, several of the fan-shaped nozzles are fixedly mounted by a fixing frame, and a fixed distance is maintained between the fan-shaped nozzles and the screen plate of the drum cotton collector.

[0008] A further technical solution involves grouping and correspondingly connecting several fan-shaped nozzles and several high-pressure pulse valves. Within each group, several fan-shaped nozzles are connected to one high-pressure pulse valve. This grouping connection method enables centralized control of fan-shaped nozzles in different areas, simplifying pipeline connections and control logic.

[0009] A further technical solution is that the number of fan-shaped nozzles in each group is the same, and the fan-shaped nozzles in each group are evenly distributed in the width direction of the drum cotton collector, ensuring that the size of the mesh plate area cleaned by each group of fan-shaped nozzles is consistent.

[0010] In a further technical solution, when the electronic control system controls the operation of several high-pressure pulse valves, only one of the high-pressure pulse valves is in the open state at any given time, while the rest of the high-pressure pulse valves are in the closed state. Through the single-open control method, it is ensured that the high-pressure water flow output by the high-pressure water pump can be concentrated and delivered to the fan-shaped nozzle connected to the currently open high-pressure pulse valve.

[0011] In a further technical solution, the electronic control system controls several high-pressure pulse valves to open and cycle in a preset order, and after the previous high-pressure pulse valve closes, the next high-pressure pulse valve opens, so as to avoid the situation where different high-pressure pulse valves open at the same time, resulting in water pressure dispersion.

[0012] In a further technical solution, one end of the high-pressure hose is sealed to the fan-shaped nozzle, and the other end is sealed to the high-pressure pulse valve. This sealing connection at both ends prevents high-pressure water from leaking from the connection point during delivery.

[0013] In a further technical solution, the high-pressure pulse valve is connected to the high-pressure water pump via a pipeline, and the pipeline is equipped with a valve for controlling the on / off state. With the setting of this valve, when the device needs to be repaired or shut down, the valve can be closed to cut off the water flow channel between the high-pressure water pump and the high-pressure pulse valve, which facilitates maintenance operations on subsequent components.

[0014] A further technical solution is that the spraying direction of several of the fan-shaped nozzles is all towards the screen of the drum cotton collector, and the spraying range can cover the corresponding area of ​​the screen. The spraying range of each fan-shaped nozzle is designed to cover the specific area corresponding to it on the screen.

[0015] The beneficial effects of the above-described embodiments of this utility model are as follows: (1) This device only has a fan-shaped nozzle, a high-pressure hose and a high-pressure pulse valve inside the drum cotton collector. It does not have any other mechanical or electrical equipment, which greatly reduces the number of internal failure points. Traditional cleaning devices have complex internal mechanical and electrical components. When a failure occurs during normal production, maintenance personnel cannot enter the internal parts for maintenance, which can easily lead to the accumulation of rubber blocks on the inner side of the mesh plate and affect permeability. However, this device basically does not require maintenance during normal operation. Only the hose and nozzle need to be checked during shutdown maintenance. This not only reduces the complexity of maintenance operations, but also reduces maintenance manpower and material costs. At the same time, it avoids the interference of shutdown due to failure on the rock wool production progress and ensures production continuity.

[0016] (2) To improve the cleaning effect of the mesh and ensure the quality of cotton distribution, the device controls several high-pressure pulse valves through an electrical control system to achieve a single cycle action. At any given time, only one high-pressure pulse valve is open, so that the high-pressure water flow output by the high-pressure water pump can be concentrated and delivered to the corresponding group of fan-shaped nozzles. This centralized water supply method ensures that the water flow sprayed from the fan-shaped nozzles has sufficient pressure, which can effectively flush out the slag balls in the mesh holes and the fibers and resin glue attached to the mesh, avoiding clogging of the mesh holes. At the same time, the fan-shaped nozzles are spaced and evenly distributed along the width of the cotton collecting machine, and the spray range can completely cover all areas of the mesh, with no blind spots, ensuring the overall permeability of the mesh, thereby ensuring the stable cotton distribution effect of the drum cotton collecting machine, and providing a good foundation for the subsequent formation of rock wool boards or felts of uniform thickness. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0018] Figure 1 This is a schematic diagram of the cleaning device structure in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the installation structure of the fan-shaped nozzle and the cotton collector in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the arrangement structure of the high-pressure hose in Embodiment 1 of this utility model; The components include: 1. Fan-shaped nozzle; 2. High-pressure pulse valve; 3. High-pressure water pump; 4. Electrical control system; 5. Drum cotton collector; 6. Mesh plate; 7. High-pressure hose; 8. Hollow cotton collecting shaft; 9. Conduit; 10. Fixing frame. Detailed Implementation

[0019] Example 1: like Figure 1 , Figure 2 and Figure 3 As shown, the drum-type cotton collector screen cleaning device of this embodiment includes several fan-shaped nozzles 1, several high-pressure pulse valves 2, a high-pressure water pump 3, and an electrical control system 4 for controlling the operation of the high-pressure pulse valves 2. Several fan-shaped nozzles 1 are arranged inside the drum-type cotton collector 5, and the fan-shaped nozzles 1 are arranged opposite to the screen 6 of the drum-type cotton collector 5. Several fan-shaped nozzles 1 are connected to several high-pressure pulse valves 2 through high-pressure hoses 7. Several high-pressure pulse valves 2 are all connected to the high-pressure water pump 3. The electrical control system 4 is electrically connected to several high-pressure pulse valves 2 to control the single-cycle operation of several high-pressure pulse valves 2.

[0020] Furthermore, several fan-shaped nozzles 1 are arranged at intervals along the width direction of the drum cotton collector 5. A cotton-collecting hollow shaft 8 is set at the center of the drum cotton collector, and a conduit 9 is installed on the cotton-collecting hollow shaft. The high-pressure hose 7 is installed through the conduit 9 to ensure that the spray range of all fan-shaped nozzles 1 can cover the area of ​​the screen plate 6 in the width direction of the drum cotton collector 5, avoiding blind spots in cleaning. The cotton-collecting hollow shaft 8 provides a rotation function to ensure the arrangement of the pipeline.

[0021] Furthermore, all of the aforementioned fan-shaped nozzles 1 are fixedly mounted by a fixing frame 10. The fixing frame ensures the stability of the fan-shaped nozzles 1. A fixed distance is maintained between the fan-shaped nozzles 1 and the screen plate 6 of the drum cotton collector 5. By setting the fixed distance, the water flow pressure and coverage of each fan-shaped nozzle 1 are kept stable, ensuring that the cleaning effect on the screen plate 6 is consistent.

[0022] Furthermore, the fan-shaped nozzles 1 and the high-pressure pulse valves 2 are connected in groups. Within each group, the fan-shaped nozzles 1 are connected to one high-pressure pulse valve 2. The fan-shaped nozzles 1 and the high-pressure pulse valves 2 are connected in groups, that is, the fan-shaped nozzles 1 are divided into multiple groups according to a preset number. Within each group, the fan-shaped nozzles 1 are connected to one high-pressure pulse valve 2. Through the group connection, centralized control of the fan-shaped nozzles 1 in different areas is achieved, simplifying pipeline connection and control logic.

[0023] Furthermore, the number of fan-shaped nozzles 1 in each group is the same, and the fan-shaped nozzles 1 in each group are evenly distributed in the width direction of the drum cotton collector 5. The number of fan-shaped nozzles 1 in each group is the same, and the fan-shaped nozzles 1 in each group are evenly distributed in the width direction of the drum cotton collector 5. By setting the same number and even distribution, it is ensured that the area of ​​the screen plate 6 cleaned by each group of fan-shaped nozzles 1 is the same size, further ensuring the uniformity of the cleaning effect of the entire screen plate 6.

[0024] Furthermore, when the electronic control system 4 controls the operation of several high-pressure pulse valves 2, only one high-pressure pulse valve 2 is in the open state at any given time, while the rest of the high-pressure pulse valves 2 are in the closed state. The system controls several high-pressure pulse valves 2 to open sequentially according to the preset order, and repeats the opening sequence after all high-pressure pulse valves 2 have completed one opening action to achieve cyclic control. In addition, during the control process, the system strictly follows the logic that the next high-pressure pulse valve 2 will only open after the previous one is completely closed, so as to avoid the situation where different high-pressure pulse valves 2 open at the same time, resulting in water pressure dispersion.

[0025] Furthermore, the electronic control system 4 controls several high-pressure pulse valves 2 to open sequentially and cyclically according to a preset order. After the previous high-pressure pulse valve 2 closes, the next high-pressure pulse valve 2 opens. The system controls several high-pressure pulse valves 2 to open sequentially according to the preset order, and repeats the opening sequence after all high-pressure pulse valves 2 have completed one opening action to achieve cyclic control. During the control process, the system strictly follows the logic that the next high-pressure pulse valve 2 only opens after the previous one is completely closed, to avoid the situation where different high-pressure pulse valves 2 open simultaneously, which would cause water pressure dispersion.

[0026] Furthermore, one end of the high-pressure hose 7 is sealed to the fan-shaped nozzle 1, and the other end is sealed to the high-pressure pulse valve 2. The sealing connection at both ends prevents the high-pressure water from leaking from the connection point during the delivery process, ensuring that the high-pressure water can be fully delivered to the fan-shaped nozzle 1 and ensuring the cleaning pressure.

[0027] Furthermore, the high-pressure pulse valve 2 and the high-pressure water pump 3 are connected by a pipeline, and a valve for controlling the on-off state is installed on the pipeline. With the valve installed on the connecting pipeline, the water flow channel between the high-pressure water pump 3 and the high-pressure pulse valve 2 can be cut off when the device needs to be repaired or shut down, which facilitates the maintenance operation of subsequent components.

[0028] Furthermore, the spraying direction of several fan-shaped nozzles 1 is all directed towards the screen plate 6 of the drum cotton collector 5, and the spraying range can cover the corresponding area of ​​the screen plate 6. The spraying range of each fan-shaped nozzle 1 is designed to cover the specific area on the screen plate 6 corresponding to it. At the same time, by reasonably arranging the position of all fan-shaped nozzles 1 and adjusting the spraying angle, the combined spraying range of all fan-shaped nozzles 1 can completely cover the entire screen plate 6, ensuring that all areas of the screen plate 6 can be effectively cleaned.

[0029] The working principle is as follows: The core working principle of this cleaning device is based on high-pressure water jet technology and electronic sequential pulse control technology to perform a periodic, pulse-like automatic rinsing of the mesh plate 6 of the drum cotton collector 5. Its fundamental purpose is to efficiently remove fibrous impurities, oil clumps, and other blockages that are deeply embedded inside the mesh plate 6 during the cotton collection process and are difficult to remove by ordinary low-pressure rinsing or mechanical scraping alone.

[0030] The entire system's workflow begins with the startup of the high-pressure water pump 3. The high-pressure water pump 3 operates continuously, drawing water from the source and pressurizing it to the high pressure required by the system design (the pressure value can be adjusted within a certain range depending on the degree of screen blockage and the material). This continuous high-pressure water flow is delivered to the common inlet header of all the parallel high-pressure pulse valves 2, reaching the inlet of each high-pressure pulse valve 2, ready to be used at any time. Simultaneously, the electrical control system 4 is powered on, and its internal PLC or control system begins executing the preset control program, sequentially sending digital electrical signal commands to the solenoids of each high-pressure pulse valve 2 according to the program logic.

[0031] Its specific working process strictly follows the principle of "single action, sequential cycle". This means that within any instantaneous time slice during system operation, only one of the high-pressure pulse valves 2 controlled by the electronic control system 4 can be instructed to open, allowing high-pressure water to flow through; at the same time, all other high-pressure pulse valves 2 must be instructed to close firmly, cutting off the water flow. When a high-pressure pulse valve 2 in the sequence (e.g., the valve responsible for area A) receives an opening signal from the electronic control system 4, the pilot solenoid head of the valve is energized, driving the valve core to move rapidly within milliseconds, overcoming spring force and water pressure to open the main channel. At the instant the valve opens, the passage between the high-pressure water source and the set of fan-shaped nozzles 1 connected to the valve outlet is completely connected.

[0032] High-pressure water is ejected from the precisely machined slit-shaped or specially cavity-structured nozzles of the fan-shaped nozzle 1, forming an extremely thin yet highly impactful "fan-shaped water jet." This water precisely and directly impacts the outer surface of the mesh plate 6 of the drum-type cotton collector 5. The impact force is sufficient to penetrate the layer of fiber impurities formed on the mesh surface, powerfully flushing the inside of the mesh, peeling away and washing away blockages, and restoring the mesh's permeability.

[0033] The opening time (i.e., pulse width) of each high-pressure pulse valve 2 is pre-set in the electronic control system 4, typically ranging from a fraction of a second to several seconds (adjustable depending on the actual fouling condition). Once the preset opening time is reached, the electronic control system 4 immediately cuts off the opening signal to that valve and issues a closing command. The valve core of the high-pressure pulse valve 2 quickly resets under the action of its internal spring, tightly sealing the water flow channel. The most ingenious and crucial aspect of the entire system design lies in the subsequent action sequence: the internal program setting of the electronic control system 4 ensures that after the previous high-pressure pulse valve 2 (valve A) is confirmed to be completely closed, it deliberately delays for a very short but sufficient time (usually 100-500 milliseconds) before issuing an opening command to the next high-pressure pulse valve 2 (valve B). This brief delay is the key guarantee that the valve core of valve A has sufficient time to fully seat and seal. This design completely and absolutely avoids two or more high-pressure pulse valves 2 from simultaneously opening even for a millisecond due to overlapping valve core actions. This is the core secret to ensuring the system's high efficiency: it ensures that all the hydraulic energy (all flow and all pressure) generated by the high-pressure water pump 3 can be supplied directly and completely to the currently operating set of fan-shaped nozzles 1 at any given moment. This ensures that the water flow sprayed onto the screen always maintains the maximum impact force required by the design, concentrating energy and resulting in a significant unblocking effect. If this delay is missing, causing both valves to open simultaneously, the pump pressure will be abruptly distributed to both sets of nozzles, resulting in insufficient pressure on both sides, a sharp decrease in cleaning effect, and the water pump may be damaged due to overload.

[0034] After a complete cycle, the electronic control system 4 does not stop but automatically resets the sequence to the starting point and begins the next identical cycle without hesitation, repeating this process continuously. This achieves continuous, fully automatic, and non-stop efficient cleaning of the entire width area of ​​the drum-type cotton collector 5 and the mesh plate 6.

[0035] In summary, this device successfully constructs a high-performance cleaning system by grouping the nozzles, controlling each zone with high-pressure pulse valves (2 zones), and combining this with the strict sequential start-stop (with interlocking delay) logic of the electronic control system (4 zones). While ensuring absolutely no cleaning blind spots, it minimizes the system's instantaneous hydraulic and electrical load (equivalent to the load of driving only one set of nozzles), yet achieves cleaning results comparable to all nozzles operating simultaneously (through high-speed cyclic rotation). Ultimately, it perfectly achieves multiple design goals, including high-efficiency cleaning, energy saving (electricity and water saving), extended screen life, and fully automatic operation, demonstrating extremely high economic benefits and application value.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A drum-type cotton collector screen cleaning device, characterized in that, The device includes several fan-shaped nozzles, several high-pressure pulse valves, a high-pressure water pump, and an electrical control system for controlling the operation of the high-pressure pulse valves. The fan-shaped nozzles are disposed inside a drum-type cotton collector, and are positioned opposite to the screen plate of the drum-type cotton collector. The fan-shaped nozzles are connected to the high-pressure pulse valves via high-pressure hoses. The high-pressure pulse valves are all connected to the high-pressure water pump. The electrical control system is electrically connected to the high-pressure pulse valves to control the single-cycle operation of the high-pressure pulse valves.

2. The drum-type cotton collector screen cleaning device according to claim 1, characterized in that, Several fan-shaped nozzles are arranged at intervals along the width direction of the drum cotton collector. A cotton collecting hollow shaft is set at the center of the drum cotton collector. A conduit is installed on the cotton collecting hollow shaft. The high-pressure hose passes through the conduit.

3. The drum-type cotton collector screen cleaning device according to claim 1, characterized in that, Several of the aforementioned fan-shaped nozzles are fixedly mounted by a fixing frame, and a fixed distance is maintained between the aforementioned fan-shaped nozzles and the screen plate of the drum cotton collector.

4. The drum-type cotton collector screen cleaning device according to claim 1, characterized in that, The fan-shaped nozzles and the high-pressure pulse valves are connected in groups, with the fan-shaped nozzles in each group connected to one high-pressure pulse valve.

5. The drum-type cotton collector screen cleaning device according to claim 1, characterized in that, The number of fan-shaped nozzles in each group is the same, and the fan-shaped nozzles in each group are evenly distributed in the width direction of the drum cotton collector.

6. The drum-type cotton collector screen cleaning device according to claim 1, characterized in that, When the electronic control system controls the operation of several high-pressure pulse valves, at any given time only one of the high-pressure pulse valves is in the open state, while the rest of the high-pressure pulse valves are in the closed state.

7. The drum-type cotton collector screen cleaning device according to claim 1, characterized in that, The electronic control system controls several high-pressure pulse valves to open and cycle in a preset order, and after the previous high-pressure pulse valve closes, the next high-pressure pulse valve opens.

8. The drum-type cotton collector screen cleaning device according to claim 1, characterized in that, One end of the high-pressure hose is sealed to the fan-shaped nozzle, and the other end is sealed to the high-pressure pulse valve.

9. A drum-type cotton collector screen cleaning device according to claim 1, characterized in that, The high-pressure pulse valve is connected to the high-pressure water pump via a pipeline, and the pipeline is equipped with a valve for controlling the on / off state.

10. A drum-type cotton collecting machine mesh cleaning device according to claim 1, characterized in that, The spray direction of several of the fan-shaped nozzles is all directed toward the screen of the drum cotton collector, and the spray range can cover the corresponding area of ​​the screen.

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