Coal dust removal device
By introducing a back-flushing air compressor and controller into the dust removal device, high-pressure gas is used to remove the deposits on the filter, which solves the problem of easy clogging of the filter equipment, improves dust removal efficiency and equipment life, and avoids equipment loosening and wear.
Patent Information
- Application Number
- CN202421620545.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The filters in existing dust removal equipment are prone to clogging, which leads to a decrease in dust removal efficiency and a shortened lifespan. Frequent vibrations also cause the equipment to loosen and wear out.
By introducing a back-flushing air compressor and controller into the dust removal device, high-pressure gas is used to remove deposits on the filter, avoiding frequent vibration, and the dust removal cycle is optimized through air valve control and sensor monitoring.
It effectively prevents filtration equipment from clogging, improves dust removal efficiency, extends equipment life, avoids equipment loosening and wear, and optimizes the dust removal cycle.
Smart Images
Figure CN223945281U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to dust removal technical field, specifically, the utility model relates to a coal dust removal device. BACKGROUND
[0002] Coal dust and other fine particulate matter and air pollutants are usually generated in the coal sample preparation room. If these particulate matters are exposed to the air for a long time, they may harm the health of the workers. Therefore, dust removal equipment is usually used to reduce the concentration of coal dust and other particulate matters in the coal sample preparation room.
[0003] The dust removal equipment usually sucks the dust-containing air mixed with particulate matters in the sample preparation room into the pipeline through the negative pressure generated by the fan, filters the dust-containing air through the dust collector, and then discharges the pure air to the atmosphere. When the filter equipment (filter screen or filter element) in the dust collector is blocked, the dust removal efficiency of the dust removal system decreases, and the service life of the filter equipment may also decrease under this condition. To prevent the filter equipment from being blocked, a mechanical device is usually used to shake or vibrate the frame of the filter equipment to make the dust and other particulate matters fall off the filter equipment into the ash bucket or dust collection box. However, in order to prevent the filter equipment from frequent vibration and to avoid problems such as loose equipment structure and mechanical wear, the time interval between two vibrations of the filter equipment is usually long (i.e., the dust removal period is long), and the filter equipment may be blocked at this time, which reduces the dust removal efficiency of the dust collector. SUMMARY
[0004] To solve the problem that the filter equipment may be blocked and the dust removal efficiency of the dust collector decreases, the utility model provides the following solutions.
[0005] A coal dust removal device includes: a sample preparation equipment; a pipeline, which is configured with a preset number of air valves at a preset interval in the axial direction, wherein at least one air valve faces the sample preparation equipment; a dust removal host, which is arranged at one end of the pipeline, the dust removal host includes a filter and a fan, the fan is used to form a negative pressure in the pipeline to suck the dust-containing air generated by the sample preparation equipment into the pipeline, and the filter is used to filter out the dust in the dust-containing air; a back-blowing air compressor, whose air outlet faces the filter; a controller, which is connected with the control end of the dust removal host, the back-blowing air compressor, and one or more air valves, is used to control the opening and closing of each air valve, and is also used to control the start and stop of the back-blowing air compressor and the dust removal host.
[0006] In one embodiment, the back-blowing dust removal machine includes a pulse back-blowing valve, which is used to control the air volume during the back-blowing process to remove the dust accumulated in the filter.
[0007] In one embodiment, the power distribution circuit further comprises an indicator light HR and a three-hole socket V.
[0008] In one embodiment, the power distribution circuit further comprises an indicator light HR and a three-hole socket V.
[0009] In one embodiment, the power distribution circuit further comprises an indicator light HR and a three-hole socket V.
[0010] In one embodiment, the controller comprises a CPU, which comprises a predetermined number of input ports and a predetermined number of output ports, the signal input port of the CPU receives the first control signal output by the touch screen KMI, and outputs a second control signal through the output port.
[0011] In one embodiment, the air valve receives AC power through a relay, and the relay coil receives the second control signal output by one of the output ports.
[0012] In one embodiment, the number of back-blowing air compressors is at least one, and the back-blowing air compressors receive AC power through the relay.
[0013] In one embodiment, the model of the CPU is 6ES7288-1SR60-0AA1.
[0014] In one embodiment, a coal dust removal device further comprises a sensor unit, which detects data including fan speed, air valve opening state and number of back-blowing air compressor openings, and displays the data through the touch screen KMI.
[0015] The beneficial effects of the utility model are:
[0016] This invention removes deposits from the filters (screens or cartridges, etc.) by closing the air valve and opening the back-flushing air compressor, which outputs high-pressure gas to the filters in the dust collector. This avoids problems such as loosening of the equipment structure and mechanical wear caused by frequent vibration of the filtration equipment, and also avoids the problem of filter blockage caused by long time intervals between two cleanings of the filter equipment. Attached Figure Description
[0017] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:
[0018] Figure 1 This is a schematic structural block diagram of a coal dust removal device according to an embodiment of the present utility model;
[0019] Figure 2 This is a schematic diagram of the power distribution circuit according to an embodiment of the present utility model;
[0020] Figure 3 This is a schematic diagram illustrating the principle of a relay-controlled air valve according to an embodiment of the present invention.
[0021] Figure 4 This is a schematic diagram illustrating the principle of relay-controlled reverse blower according to an embodiment of the present utility model.
[0022] Figure 5 This is a schematic diagram of the circuit schematic of the controller according to an embodiment of the present utility model. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0025] Figure 1 This is a schematic diagram illustrating the structure of a coal dust removal device according to an embodiment of the present invention.
[0026] like Figure 1As shown, the coal dust removal device comprises a sample preparation device, a pipeline, a dust removal host, a back-blowing air compressor and a controller.
[0027] The sample preparation device is used for producing coal, and the coal has dust on the surface. The pipeline is provided with a preset number of air valves at equal intervals on one side, and the air valves are all directed to the sample preparation device. The dust removal host is arranged at one end of the pipeline, and comprises a filter and a fan. The filter is provided with an air inlet directed to the fan, and the air outlet of the fan is directed to the outlet of the pipeline. The back-blowing air compressor is provided with an air outlet directed to the filter. The controller is used for controlling the opening and closing of the air valves and the start and stop of the back-blowing air compressor.
[0028] In one embodiment, the pipeline is a straight cylindrical pipeline. When the air valves and the fan are turned on, the pressure inside the pipeline is less than the pressure outside, so that the dust-containing air in the dust removal device is sucked into the pipeline.
[0029] In another embodiment, the pipeline is connected by a curved cylindrical pipeline. One side of the straight cylindrical pipeline in the pipeline is provided with an air valve, and one side of the curved cylindrical pipeline in the pipeline is not provided with an air valve. When the air valves and the fan are turned on, the pressure inside the pipeline is less than the pressure outside, so that the dust-containing air in the dust removal device is sucked into the pipeline.
[0030] In one embodiment, the number of sample preparation devices is one. When the fan in the dust removal host is turned on and the air valves directed to the sample preparation device are opened, the air flow in the pipeline is directed to the section where the dust removal host is located. The dust-containing air in the sample preparation device enters the pipeline through the air valves and is output to the atmosphere after being filtered by the filter in the dust removal host. After the air valves are opened for a period of time (i.e., after the sample preparation device is operated for a period of time), the filter is shaken by alternately turning on the back-blowing air compressor and the fan and closing the air valves.
[0031] It should be noted that the number of times the back-blowing air compressor and the air valves are turned on and closed is realized by related personnel operating the touch screen KMI. The number of times the back-blowing air compressor is turned on is related to the dust content on the filter (e.g., filter screen). The dust content is obtained by manual observation.
[0032] Figure 2 It is a schematic circuit diagram of a power distribution circuit according to an embodiment of the present application.
[0033] As Figure 2As shown, the power distribution circuit includes a first fuse FU1, a second fuse FU2, a third fuse FU3, a fourth fuse FU4, and a rectifier US.
[0034] The L port of the rectifier US is connected to the live wire through the first fuse FU1, the N port of the rectifier US is connected to the zero line through the second fuse FU2, the PE port of the rectifier US is grounded, the V+ port of the rectifier US outputs positive direct current through the third fuse FU3, and the V- port of the rectifier US outputs negative direct current through the fourth fuse FU4.
[0035] In one embodiment, the power distribution circuit further includes an indicator light HR and a three-hole socket V.
[0036] In one embodiment, a coal dust removal device further includes a touch screen KMI for providing a human-machine interaction interface and sending a control signal to the controller, and the L port of the touch screen receives direct current output by the rectifier US.
[0037] In one embodiment, a coal dust removal device further includes a sensor unit for detecting data including fan rotating speed, air valve opening state, and opening number of back-blowing air compressor, and displaying the data through the touch screen KMI.
[0038] In one embodiment, as Figure 3 shown, the number of air valves is n, the number of switches for controlling the air valves is m, and the back-blowing air compressors and the switches are one-to-one corresponding. The switches for controlling the air valves include switches KA1, KA2, …, KAn. As Figure 4 shown, the number of back-blowing air compressors is m, the number of switches for controlling the back-blowing air compressors is m, and the back-blowing air compressors and the switches are one-to-one corresponding. The switches for controlling the back-blowing air compressors include switches KAn+1, KAn+2, …, KAn+m. Wherein, the switches KA1, …, KAn+m are all relays.
[0039] In other embodiments, multiple air valves are controlled by one switch, and multiple back-blowing air compressors are controlled by one switch.
[0040] Figure 5 is a schematic circuit diagram of a controller according to an embodiment of the present application.
[0041] As Figure 5As shown, the controller includes a CPU, the CPU includes a predetermined number of input ports and a predetermined number of output ports, the signal input port of the CPU receives the first control signal output by the touch screen KMI, and outputs the second control signal through the output port. Among them, the model of the CPU is 6ES7288-1SR60-0AA1.
[0042] In one embodiment, the relevant personnel select the number of air valves opened and the number of air pressure machines for back blowing through the touch screen KMI, the touch screen KMI outputs the first control signal to the CPU, the CPU outputs the second control signal according to the first control signal, and the second control signal is used to control the contact of the corresponding relay of the air valve and the back blowing air pressure machine to close or open.
[0043] In the above description of the present specification, unless otherwise explicitly specified and limited, the terms "fixed", "mounted", "connected" or "linked" and the like should be understood in a broad sense. For example, as to the term "connected", it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or it can be internal communication of two elements or interaction relationship between two elements. Therefore, unless otherwise explicitly limited in the present specification, the above-mentioned terms can be understood according to the specific meaning of the above-mentioned terms in the present application by those skilled in the art.
[0044] In addition, the terms "first" or "second" and the like used in the present specification are terms used to refer to numbers or ordinal numbers only for the purpose of description, and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" or "second" can explicitly or implicitly include at least one of the features. In the description of the present specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise explicitly specified and limited.
[0045] Although the present application has shown and described the embodiments of the present application, it is obvious to those skilled in the art that such embodiments are provided only in an exemplary manner. Those skilled in the art will think of many changes, changes and alternative ways without departing from the idea and spirit of the present application. It should be understood that various alternative schemes of the embodiments of the present application described herein can be used in the process of practicing the present application. The appended claims are intended to define the scope of protection of the present application, and therefore cover the module composition, equivalents or alternatives within the scope of these claims.
Claims
1. A coal dust removal device characterized by comprising: include: Sample preparation equipment; The pipeline has a predetermined number of air valves arranged axially at predetermined intervals, wherein at least one air valve faces the sample preparation equipment. A dust removal host is configured at one end of a pipeline. The dust removal host includes a filter and a fan. The fan is used to create a negative pressure in the pipeline to draw dust-laden air generated by the sample preparation equipment into the pipeline. The filter is used to filter out dust from the dust-laden air. A backflush air compressor, with its air outlet facing the filter; The controller is connected to the control terminals of the dust collector, the back-flushing air compressor, and one or more air valves, and is used to control the opening and closing of each air valve. The controller is also used to control the start and stop of the back-flushing air compressor and the dust collector.
2. The coal dust removal device according to claim 1, characterized in that, The backflush air compressor includes a pulse backflush valve for controlling the airflow during the backflush process to remove dust from the filter.
3. The coal dust removal device according to claim 1, characterized in that, It also includes a power distribution circuit, which is used to output AC power to the backflush air compressor and DC power to the controller. The power distribution circuit includes a first fuse (FU1), a second fuse (FU2), a third fuse (FU3), a fourth fuse (FU4), and a rectifier (US). The L port of the rectifier (US) is connected to the live wire through the first fuse (FU1), the N port of the rectifier (US) is connected to the neutral wire through the second fuse (FU2), the PE port of the rectifier (US) is grounded, the V+ port of the rectifier (US) outputs positive DC power through the third fuse (FU3), and the V- port of the rectifier (US) outputs negative DC power through the fourth fuse (FU4).
4. The coal dust removal device according to claim 3, characterized in that, The power distribution circuit also includes indicator lights (HR) and three-hole sockets (V).
5. The coal dust removal device according to claim 3, characterized in that, It also includes a touchscreen (KMI) for providing a human-machine interface and sending control signals to the controller, wherein the L port of the touchscreen receives the DC power output from the rectifier (US).
6. The coal dust removal device according to claim 5, characterized in that The controller includes a CPU, which includes a predetermined number of input ports and a predetermined number of output ports. The CPU's signal input ports receive a first control signal output by the touchscreen (KMI) and output a second control signal through the output ports.
7. The coal dust removal device according to claim 6, characterized in that The air valve receives AC power through a relay, and the relay coil receives a second control signal output from one of its output ports.
8. The coal dust removal device according to claim 7, characterized in that, The number of backflush air compressors is at least one, and the backflush air compressors receive AC power through the relay.
9. The coal dust removal device according to claim 6, characterized in that, The CPU model is 6ES7288-1SR60-0AA1.
10. The coal dust removal device according to claim 6, characterized in that, It also includes a sensor unit that detects data including fan speed, air valve opening status, and the number of back-blowing air compressors in operation, and displays the data through the touch screen (KMI).