A filter unit with self-cleaning function for desulfurization and denitrification of a steel plant

Abstract

The utility model discloses a kind of filtering units with self-cleaning function for steel plant desulfurization and denitrification, including equipment shell;Air inlet pipe, one end of air inlet pipe is fixedly communicated with the top of equipment shell;Air outlet pipe, one end of air outlet pipe is fixedly communicated with the lower side of equipment shell;Filter cartridge, several filter cartridges are arranged in the inside of equipment shell;Self-cleaning assembly, self-cleaning assembly is arranged at the side of equipment shell;Self-cleaning assembly includes pulse transmitter, air nozzle, resistance sensor, control terminal, pulse transmitter is fixedly installed at the side of equipment shell, air nozzle is arranged at the side of pulse transmitter close to equipment shell, one end of air nozzle is fixedly communicated with the inside of filter cartridge.In the above scheme, equipment shell, air inlet pipe, air outlet pipe, filter cartridge, self-cleaning assembly, vibration motor are set, through the above structure, make filtering unit have the function of self-cleaning, can automatically clean filter core after long time use, make it maintain good filtering effect.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization and denitrification technology, and more specifically, to a filter unit for desulfurization and denitrification in steel plants with self-cleaning function. Background Technology

[0002] Desulfurization and denitrification filter units are key equipment installed before or during flue gas desulfurization and denitrification systems. Their core function is to efficiently capture and remove fly ash, dust, unreacted absorbent, and other solid particulate matter from flue gas through mechanisms such as physical interception, inertial impaction, or deep filtration. Their main purpose is to protect subsequent desulfurization and denitrification equipment from wear, blockage, and contamination, ensuring the stable and efficient operation of the entire system and guaranteeing that the final flue gas emissions meet particulate matter concentration standards.

[0003] After a period of use, a large amount of dust will accumulate on the filter screen of the existing filter unit. This dust will clog the filter pores and affect the filtration effect of the filter unit. In order to ensure the good filtration effect of the filter unit, the filter screen needs to be cleaned frequently. However, the disassembly and reassembly of the filter screen on the existing filter unit will consume a lot of manpower and time, which will affect the normal desulfurization and denitrification work.

[0004] Therefore, a filter unit for desulfurization and denitrification in steel plants with self-cleaning function was proposed to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a filter unit for desulfurization and denitrification of steel plants with self-cleaning function, so as to solve the problem that the filter screen of the prior art filter unit is difficult to clean and the filter screen disassembly and assembly consume a lot of manpower and time, thereby affecting the normal desulfurization and denitrification work.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a filter unit for desulfurization and denitrification in steel plants with self-cleaning function, comprising...

[0007] Equipment casing;

[0008] An air intake pipe, one end of which is fixedly connected to the top of the equipment casing;

[0009] An exhaust pipe, one end of which is fixedly connected to the lower part of the equipment casing;

[0010] Filter cartridges, a plurality of the filter cartridges being disposed inside the housing of the equipment;

[0011] A self-cleaning component is disposed on one side of the device housing;

[0012] The self-cleaning component includes a pulse transmitter, an air nozzle, a resistance sensor, and a control terminal. The pulse transmitter is fixedly installed on one side of the equipment housing. The air nozzle is located on the side of the pulse transmitter near the equipment housing, with one end of the air nozzle fixedly connected to the inside of the filter cartridge. The resistance sensor is fixedly installed inside the equipment housing. The control terminal is fixedly installed on the front of the equipment housing and is electrically connected to both the resistance sensor and the pulse transmitter.

[0013] It also includes a vibration motor, which is located at the bottom of the filter cartridge.

[0014] It also includes a dust collection component, which is installed at the bottom of the equipment housing.

[0015] The dust collection assembly includes a falling hopper, a connecting pipe, a valve, a guide pipe, a motor, a spiral blade, and a collection box. The top of the falling hopper is fixedly connected to the bottom of the equipment casing, the top of the connecting pipe is fixedly connected to the bottom of the falling hopper, the valve is fixedly installed in the middle of the connecting pipe, the top of the guide pipe is fixedly connected to the bottom of the connecting pipe, the motor is fixedly installed at one end of the guide pipe, one end of the spiral blade is fixedly connected to the output end of the motor, the other end of the spiral blade is rotatably connected to the inside of the guide pipe, and the collection box is detachably installed on the front of the guide pipe away from the motor.

[0016] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0017] The above solution includes an equipment casing, an inlet pipe, an outlet pipe, filter cartridges, a self-cleaning component, and a vibration motor. Steel plant flue gas enters the equipment casing through the inlet pipe. As the flue gas passes through multiple filter cartridges, the cartridges filter out impurities, allowing the gas to exit through the outlet pipe. A resistance sensor detects the resistance value of the flue gas flow inside the casing. If the resistance value is too high, it indicates excessive impurities on the filter cartridges, causing blockage of the filter openings. In this case, a signal is sent to the control terminal, which activates a pulse transmitter to generate gas and spray it from the nozzle into the filter cartridges. The airflow from inside the filter cartridges outwards dislodging impurities. This structure enables the filter unit to have a self-cleaning function, automatically cleaning the filter element after prolonged use to maintain good filtration performance.

[0018] A dust collection component is installed; opening the valve allows impurities shaken off from the equipment casing to fall into the hopper. The impurities then enter the guide pipe through the connecting pipe. At this point, the motor is activated, driving the spiral blades to rotate and push the impurities into the collection box. This structure ensures timely collection of the cleaned impurities, preventing them from being re-introduced into the flue gas and causing pollution. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the self-cleaning component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the dust collection component of this utility model.

[0023] [Figure Labels]

[0024] 1. Equipment casing; 2. Air inlet pipe; 3. Air outlet pipe; 4. Filter cartridge;

[0025] 5. Self-cleaning component; 51. Pulse transmitter; 52. Air nozzle; 53. Resistance sensor; 54. Control terminal;

[0026] 6. Vibration motor;

[0027] 7. Dust collection assembly; 71. Falling hopper; 72. Connecting pipe; 73. Valve; 74. Guide pipe; 75. Motor; 76. Spiral blade; 77. Collection box. Detailed Implementation

[0028] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0029] As attached Figure 1 To be continued Figure 4 An embodiment of this utility model provides a filter unit for desulfurization and denitrification in steel plants with self-cleaning function, including...

[0030] Equipment casing 1;

[0031] Air inlet pipe 2, one end of which is fixedly connected to the top of the equipment housing 1;

[0032] Air outlet pipe 3, one end of which is fixedly connected to the lower part of the equipment housing 1;

[0033] Filter cartridge 4, several filter cartridges 4 are arranged inside the equipment housing 1;

[0034] Self-cleaning component 5, which is disposed on one side of the device housing 1;

[0035] The self-cleaning component 5 includes a pulse transmitter 51, an air nozzle 52, a resistance sensor 53, and a control terminal 54. The pulse transmitter 51 is fixedly installed on one side of the equipment housing 1. The air nozzle 52 is located on the side of the pulse transmitter 51 close to the equipment housing 1. One end of the air nozzle 52 is fixedly connected to the inside of the filter cartridge 4. The resistance sensor 53 is fixedly installed inside the equipment housing 1. The control terminal 54 is fixedly installed on the front of the equipment housing 1. The control terminal 54 is electrically connected to the resistance sensor 53 and to the pulse transmitter 51.

[0036] It also includes a vibration motor 6, which is located at the bottom of the filter cylinder 4.

[0037] It also includes a dust collection component 7, which is installed at the bottom of the equipment housing 1.

[0038] The dust collection assembly 7 includes a falling hopper 71, a connecting pipe 72, a valve 73, a guide pipe 74, a motor 75, a spiral blade 76, and a collection box 77. The top of the falling hopper 71 is fixedly connected to the bottom of the equipment housing 1. The top of the connecting pipe 72 is fixedly connected to the bottom of the falling hopper 71. The valve 73 is fixedly installed in the middle of the connecting pipe 72. The top of the guide pipe 74 is fixedly connected to the bottom of the connecting pipe 72. The motor 75 is fixedly installed at one end of the guide pipe 74. One end of the spiral blade 76 is fixedly connected to the output end of the motor 75. The other end of the spiral blade 76 is rotatably connected to the inside of the guide pipe 74. The collection box 77 is detachably installed on the front of the guide pipe 74 away from the motor 75.

[0039] During the cleaning of the filter cartridge 4, the vibration motor 6 is turned on. The vibration motor 6 causes the surface of the filter cartridge 4 to vibrate, which helps to shake off the impurities attached to the filter cartridge 4.

[0040] The collection box 77 can be removed from the front of the guide tube 74 to process the impurities inside.

[0041] The working process of this utility model is as follows: the flue gas from the steel plant enters the interior of the equipment shell 1 through the inlet pipe 2. When the flue gas passes through multiple filter cylinders 4, the filter cylinders 4 will filter the impurities in the flue gas and discharge the flue gas from the outlet pipe 3. The resistance sensor 53 can detect the resistance value when the flue gas flows inside the equipment shell 1. When the resistance value is too high, it proves that too many impurities are attached to the filter cylinder 4 and the filter holes are blocked. At this time, a signal will be sent to the control terminal 54. The control terminal 54 controls the pulse transmitter 51 to start, generate gas and spray it from the nozzle 52 into the interior of the filter cylinder 4. The airflow is sprayed outward from the interior of the filter cylinder 4, causing the impurities on the filter cylinder 4 to fall off.

[0042] Opening valve 73 allows the impurities shaken off from the outer casing 1 to fall from the drop hopper 71. The impurities will enter the guide pipe 74 through the connecting pipe 72. At this time, the motor 75 is turned on, which drives the spiral blade 76 to rotate, pushing the impurities into the collection box 77.

[0043] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0044] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0045] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter unit for desulfurization and denitrification in steel plants with self-cleaning function, characterized in that, include Equipment casing (1); An air inlet pipe (2) is fixedly connected at one end to the top of the equipment housing (1); An exhaust pipe (3) is provided, one end of which is fixedly connected to the lower part of the equipment housing (1); Filter cartridges (4), a plurality of the filter cartridges (4) are disposed inside the housing (1) of the equipment; Self-cleaning component (5), the self-cleaning component (5) is disposed on one side of the device housing (1); The self-cleaning component (5) includes a pulse transmitter (51), an air nozzle (52), a resistance sensor (53), and a control terminal (54). The pulse transmitter (51) is fixedly installed on one side of the equipment housing (1). The air nozzle (52) is located on the side of the pulse transmitter (51) close to the equipment housing (1). One end of the air nozzle (52) is fixedly connected to the inside of the filter cartridge (4). The resistance sensor (53) is fixedly installed inside the equipment housing (1). The control terminal (54) is fixedly installed on the front of the equipment housing (1). The control terminal (54) is electrically connected to the resistance sensor (53) and to the pulse transmitter (51).

2. The filter unit for desulfurization and denitrification of steel plants with self-cleaning function according to claim 1, characterized in that, It also includes a vibration motor (6), which is located at the bottom of the filter cartridge (4).

3. The filter unit for desulfurization and denitrification of steel plants with self-cleaning function according to claim 1, characterized in that, It also includes a dust collection assembly (7), which is installed at the bottom of the device housing (1).

4. The filter unit for desulfurization and denitrification of steel plants with self-cleaning function according to claim 3, characterized in that, The dust collection assembly (7) includes a falling hopper (71), a connecting pipe (72), a valve (73), a guide pipe (74), a motor (75), a spiral blade (76), and a collection box (77). The top of the falling hopper (71) is fixedly connected to the bottom of the equipment housing (1). The top of the connecting pipe (72) is fixedly connected to the bottom of the falling hopper (71). The valve (73) is fixedly installed in the middle of the connecting pipe (72). The top of the guide pipe (74) is fixedly connected to the bottom of the connecting pipe (72). The motor (75) is fixedly installed at one end of the guide pipe (74). One end of the spiral blade (76) is fixedly connected to the output end of the motor (75). The other end of the spiral blade (76) is rotatably connected to the inside of the guide pipe (74). The collection box (77) is detachably installed on the front of the guide pipe (74) away from the motor (75).

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