Coke screening building loading dust treatment equipment with multi-stage dust suppression structure

Abstract

The invention relates to the technical field of dust treatment, in particular to coke screening building loading dust treatment equipment with a multi-stage dust suppression structure, which comprises a coke oven blanking shell, a conveying belt is mounted in the coke oven blanking shell, and a double-shaft servo motor for the conveying belt to work is mounted on the outer side of the coke oven blanking shell. A fixing plate is fixedly connected to the interior of the conveying belt through a driving roller, a driving block is fixedly connected to the external eccentric position of the fixing plate, a driving plate is slidably connected to the outer side of the fixing plate, and a sector gear is fixedly connected to the tail end of the driving plate. A swingable dry fog nozzle is arranged in a blanking shell of the coke oven to generate micron-sized dry fog particle condensed dust, and efficient suppression, directional collection and diffusion range control of dust are realized by combining multiple functions of a negative pressure dust collection system formed by airflow hedging and Bernoulli principles and a bottom telescopic shell and a dustproof plate; the working environment is obviously improved; the pollution is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of dust control, and specifically to a dust treatment device for the loading of a coke screening building with a multi-stage dust suppression structure. Background Art

[0002] In modern industrial production, the problem of dust pollution during the loading process of the coke screening building has always been a difficult problem to be solved urgently. As an important link in the coking process, the impact of dust emissions on the environment and the health of workers is particularly significant. During the transfer, screening, and loading of coke, due to the crushing and movement of coke particles, a large amount of coke dust will be generated. These dusts will not only deteriorate the working environment, but may also cause serious pollution to the surrounding ecological environment, and even pose long-term hazards to the respiratory health of workers.

[0003] Traditional dust treatment methods mainly rely on simple water spraying for dust suppression or mechanical dust removal equipment. However, these methods have many deficiencies. For example, the water droplets generated by the traditional water spraying for dust suppression have a relatively large particle size, usually between 200 - 300 microns, and it is difficult to fully contact with fine dust particles, resulting in poor dust suppression effect. In addition, mechanical dust removal equipment such as the primary dedusting device for dry quenching coke can separate some dust through inertial or gravitational effects, but for coke powder with a particle size less than 0.5 mm, the dust removal efficiency is still relatively low. In this case, a large amount of dust will diffuse during the loading process, which will not only seriously affect the health of workers, but also cause serious pollution to the surrounding environment. Summary of the Invention

[0004] The purpose of the present invention is to provide a dust treatment device for the loading of a coke screening building with a multi-stage dust suppression structure to solve the problems mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A dust treatment device for the loading of a coke screening building with a multi-stage dust suppression structure, including a coking furnace blanking housing. Inside the coking furnace blanking housing, a conveyor belt is installed. Outside the coking furnace blanking housing, a double-axis servo motor for the operation of the conveyor belt is installed. Inside the conveyor belt, a fixing plate is fixedly connected through a driving roller. An eccentric driving block is fixedly connected to the outside of the fixing plate. A driving plate is slidably connected to the outside of the fixing plate, and a sector gear is fixedly connected to the end of the driving plate.

[0006] A bidirectional rack plate is slidably installed on the outside of the conveyor belt. A plurality of cylindrical gears are rotatably connected to the outside of the conveyor belt through bearings. An atomizing pipe is fixedly connected to the outside of the cylindrical gear, and a plurality of dry mist nozzles are fixedly connected to the outside of the atomizing pipe. A storage tank is installed outside the coking furnace blanking housing.

[0007] Furthermore, one side of the top end of the coking furnace blanking housing is fixedly connected with an installation housing. A reciprocating lead screw is movably connected inside the installation housing through a bearing. A driving frame is threadedly connected to the outside of the reciprocating lead screw. A cavity is formed inside the installation housing. A driving piston is slidably connected to the inner wall of the cavity. The bottom end of the installation housing is communicated with a transport pipe. A plurality of negative pressure pipes are communicated with the outside of the transport pipe. A collection box is fixedly connected to the outside of the coking furnace blanking housing. One end of the reciprocating lead screw is connected to the driving roller of the conveyor belt through a transmission assembly.

[0008] Furthermore, the cross-sectional area of the installation housing is much larger than that of the transport pipe. One end of the transport pipe is communicated with the inside of the collection box.

[0009] Furthermore, a plurality of buffer plates are connected to the inner wall of the coking furnace blanking housing through a rotating shaft. An elastic telescopic rod is rotatably connected to the inner side of the buffer plate. A compression spring is sleeved on the outside of the elastic telescopic rod. One end of the elastic telescopic rod is rotatably connected to the inner wall of the coking furnace blanking housing.

[0010] Furthermore, the outside of the sector gear is meshed with the outside of the double-sided rack plate. The outside of the cylindrical gear is meshed with the outside of the double-sided rack plate.

[0011] Furthermore, an air inlet pipe is communicated with the outside of the installation housing. One-way valves are installed inside both the air inlet pipe and the transport pipe, and the conduction directions of the two one-way valves are opposite.

[0012] Furthermore, a pump body is fixedly installed at the top of the coking furnace blanking housing. The output end of the pump body is communicated with a second connecting pipe. The input end of the pump body is communicated with a first connecting pipe. One end of the first connecting pipe is communicated with the top of the storage tank. One end of the second connecting pipe is communicated with the outside of a plurality of storage tanks.

[0013] Furthermore, the bottom end of the coking furnace blanking housing is detachably connected with a telescopic housing. A dust-proof plate is fixedly connected to the bottom of the telescopic housing.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In the present invention, multiple dry mist spray nozzles are installed inside the charging housing of the coke oven to achieve efficient suppression and precise treatment of dust. The micron-sized dry mist particles generated by the dry mist spray nozzles can fully contact and agglomerate with the dust particles, increasing the self-weight of the dust particles and causing them to settle naturally. By continuously spraying, the dust can be suppressed at the moment of generation, effectively reducing the initial diffusion amount of the dust. In addition, the dry mist spray nozzles can swing back and forth at an angle, significantly increasing the spraying range of the dry mist spray nozzles and ensuring the comprehensiveness and uniformity of the dust suppression effect. This design not only reduces the dust concentration, improves the working environment, but also reduces the pollution to the surrounding environment.

[0016] 2. The present invention also enables the airflows generated during coke transportation and the airflows generated at the dust suction points to achieve wind direction counteraction and turbulence, effectively reducing the diffusion speed of the dust. At the same time, by leveraging the Bernoulli principle, a negative pressure zone is formed in the guide chute to guide the dust into the installation housing for centralized collection. This design not only reduces the disorderly diffusion of dust during the loading process, but also avoids the pollution of the surrounding environment by the dust, significantly improving the working environment and reducing the potential harm of the dust to the health of the operators. Moreover, through the telescopic housing and dust-proof plate installed at the bottom of the charging housing of the coke oven, the diffusion range of the dust can be effectively restricted again, confining the dust within a local space of the loading area and preventing the dust from diffusing disorderly into the surrounding environment, thereby improving the efficiency and economy of dust treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with the accompanying drawings;

[0018] Figure 1 is the overall structural schematic diagram of the present invention;

[0019] Figure 2 is the structural schematic diagram of the telescopic housing in the present invention;

[0020] Figure 3 is the structural schematic diagram of the storage box in the present invention;

[0021] Figure 4 is the structural schematic diagram of the conveyor belt in the present invention;

[0022] Figure 5 is the sectional view of the installation housing in the present invention;

[0023] Figure 6 is the structural schematic diagram of the bidirectional rack plate of the present invention;

[0024] Figure 7 is the structural schematic diagram of the buffer plate of the present invention;

[0025] Figure 8 is the structural schematic diagram of the transport pipe of the present invention.

[0026] Reference numerals: 1, coking oven blanking housing; 201, installation housing; 202, collection box; 203, cavity; 204, drive frame; 205, drive piston; 206, transport pipe; 207, negative pressure pipe; 301, pump body; 302, connecting pipe one; 303, connecting pipe two; 304, storage box; 305, atomizing pipe; 401, telescopic housing; 402, dust-proof plate; 501, buffer plate; 502, elastic telescopic rod; 6, intake pipe; 7, conveyor belt; 801, fixing plate; 802, bidirectional rack plate; 803, cylindrical gear; 804, drive block; 805, drive plate. Detailed implementation

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment: As Figure 1 - Figure 8 shown, a screening coke tower loading dust treatment device with a multi-stage dust suppression structure includes a coking oven blanking housing 1. A conveyor belt 7 is installed inside the coking oven blanking housing 1. A double-shaft servo motor for the operation of the conveyor belt 7 is installed outside the coking oven blanking housing 1. A fixing plate 801 is fixedly connected to the inside of the conveyor belt 7 through a driving roller. A drive block 804 is fixedly connected to an eccentric position outside the fixing plate 801. A drive plate 805 is slidably connected to the outside of the fixing plate 801. A sector gear is fixedly connected to the end of the drive plate 805;

[0029] A bidirectional rack plate 802 is slidably installed outside the conveyor belt 7. A plurality of cylindrical gears 803 are rotatably connected to the outside of the conveyor belt 7 through bearings. An atomizing pipe 305 is fixedly connected to the outside of the cylindrical gear 803. A plurality of dry mist nozzles are fixedly connected to the outside of the atomizing pipe 305. A storage box 304 is installed outside the coking oven blanking housing 1.

[0030] The outside of the sector gear is meshed with the outside of the bidirectional rack plate 802. The outside of the cylindrical gear 803 is meshed with the outside of the bidirectional rack plate 802. A pump body 301 is fixedly installed on the top of the coking oven blanking housing 1. The output end of the pump body 301 is communicated with a connecting pipe two 303. The input end of the pump body 301 is communicated with a connecting pipe one 302. One end of the connecting pipe one 302 is communicated with the top of the storage box 304. One end of the connecting pipe two 303 is communicated with the outside of a plurality of storage boxes 304.

[0031] The conveyor belt 7 is used to convey coke. The blanking housing 1 of the coke oven is L-shaped, with a material input port at the top and a blanking port at the bottom.

[0032] The dual-axis servo motor located outside the blanking housing 1 of the coke oven starts and drives the driving roller to rotate. The rotation of the driving roller makes the conveyor belt 7 start to work. The coke is conveyed to the blanking port of the blanking housing 1 of the coke oven through the conveyor belt 7. The pump body 301 is started, and water in the storage tank 304 is pumped into the pump body 301 through the first connecting pipe 302. The pump body 301 conveys the water to the atomizing pipe 305 through the second connecting pipe 303. The water in the atomizing pipe 305 is sprayed out through the dry mist nozzles to form micron-level dry mist particles.

[0033] One side of the top end of the blanking housing 1 of the coke oven is fixedly connected with an installation housing 201. A reciprocating lead screw is movably connected inside the installation housing 201 through a bearing. A driving frame 204 is threadedly connected to the outside of the reciprocating lead screw. A cavity 203 is opened inside the installation housing 201. A driving piston 205 is slidably connected to the inner wall of the cavity 203. The bottom end of the installation housing 201 is communicated with a conveying pipe 206. A plurality of negative pressure pipes 207 are communicated with the outside of the conveying pipe 206. A collection box 202 is fixedly connected to the outside of the blanking housing 1 of the coke oven. One end of the reciprocating lead screw is connected to the driving roller of the conveyor belt 7 through a transmission assembly.

[0034] The cross-sectional area of the installation housing 201 is much larger than that of the conveying pipe 206. One end of the conveying pipe 206 is communicated with the inside of the collection box 202.

[0035] An air inlet pipe 6 is communicated with the outside of the installation housing 201. Check valves are installed inside both the air inlet pipe 6 and the conveying pipe 206. The conduction directions of the two check valves are opposite. The transmission assembly includes two synchronous pulleys. One of the synchronous pulleys is fixedly connected to one end of the reciprocating lead screw, and the other synchronous pulley is fixedly connected to one of the output ends of the dual-axis servo motor.

[0036] The driving frame 204 is used to convert the rotation of the reciprocating lead screw into a reciprocating movement. The cavity 203 is opened inside the installation housing 201 and is used to accommodate the driving piston 205. The driving piston 205 is used to generate a pressure change inside the cavity 203. As the driving frame 204 moves, the driving piston 205 reciprocates along the inner wall of the cavity 203, compressing or releasing the air inside the cavity 203. The conveying pipe 206 is communicated with the bottom end of the installation housing 201 and is used to transmit air. The negative pressure pipes 207 are communicated with the outside of the conveying pipe 206 and are used to generate negative pressure. The check valves are installed inside the air inlet pipe 6 and the conveying pipe 206 and are used to control the one-way flow of air. And the conduction directions of the two check valves are opposite, which is used to ensure that when the air is compressed inside the cavity 203, it can enter the negative pressure pipes 207 through the conveying pipe 206 and will not flow reversely.

[0037] The inner wall of the coking furnace blanking housing 1 is connected with a plurality of buffer plates 501 through a rotating shaft. The inner side of the buffer plate 501 is rotatably connected with an elastic telescopic rod 502. A compression spring is sleeved outside the elastic telescopic rod 502. One end of the elastic telescopic rod 502 is rotatably connected with the inner wall of the coking furnace blanking housing 1.

[0038] The bottom end of the coking furnace blanking housing 1 is detachably connected with a telescopic housing 401. The bottom of the telescopic housing 401 is fixedly connected with a dust-proof plate 402.

[0039] The dust-proof plate 402 is fixedly connected to the bottom of the telescopic housing 401. When the telescopic housing 401 is adjusted in place, the dust-proof plate 402 closely fits on the top of the loading carriage. Through the combined design of the telescopic housing 401 and the dust-proof plate 402, a relatively enclosed loading area is formed. When the coke enters the loading area through the blanking port, the dust is restricted in the local space formed by the telescopic housing 401 and the dust-proof plate 402, reducing the diffusion of dust to the surrounding environment. This design not only effectively reduces the disorderly diffusion of dust, but also significantly improves the working environment in the loading area and reduces the potential harm of dust to the health of operators.

[0040] Combined with the embodiments, the working principle of the present invention is as follows:

[0041] The double-shaft servo motor drives the conveyor belt 7 to discharge coke: Start the double-shaft servo motor outside the coking furnace blanking housing 1. Drive the driving roller to rotate through the drive of the double-shaft servo motor. Drive the conveyor belt 7 to work through the rotation of the driving roller. At this time, the coke located inside the coking furnace blanking housing 1 is discharged into the blanking port of the coking furnace blanking housing 1 through the conveyor belt 7;

[0042] Mechanical linkage realizes the angle deflection of the dry fog nozzles: When the conveyor belt 7 is working, the rotation of the driving roller will drive the fixed plate 801 to rotate. Further drive the driving block 804 to rotate eccentrically, so that the driving block 804 moves along the movable groove inside the driving plate 805, driving the driving plate 805 and the sector gear connected thereto to swing. Drive the bidirectional rack plate 802 to move left and right reciprocally through the swing of the sector gear. The left and right reciprocating movement of the bidirectional rack plate 802 drives the cylindrical gear 803 to swing forward and backward;

[0043] Thus driving the atomizing pipe 305 and the dry fog nozzles connected thereto to deflect at an angle. At this time, by starting the pump body 301, the water inside the storage tank 304 is discharged into the connecting pipe 303 through the connecting pipe 1 302, discharged into the atomizing pipe 305 through the connecting pipe 303, and finally sprayed out through a plurality of dry fog nozzles. Cooperating with the reciprocating swing angle of the dry fog nozzles, the spraying range of the dry fog nozzles is significantly improved. The micron-level dry fog particles generated by the dry fog nozzles can fully contact and agglomerate with the dust particles, increasing the self-weight of the dust particles and causing them to settle naturally;

[0044] The negative pressure dust suction system reduces dust diffusion: the other output end of the dual-axis servo motor is started, and the output end drives the transmission component to work, and cooperates with the transmission component to drive the reciprocating screw to rotate, and the drive frame 204 will reciprocate along the outer side of the reciprocating screw, thereby driving the drive piston 205 to reciprocate along the inner wall of the cavity 203. When the drive piston 205 moves away from the drive frame 204, the one-way valve inside the air inlet pipe 6 is closed, and the one-way valve inside the transport pipe 206 is opened. At this time, the air inside the cavity 203 enters the inside of the negative pressure pipe 207. Since the cross-sectional area of ​​the installation shell 201 is much smaller than the cross-sectional area of ​​the transport pipe 206, the speed of the air increases rapidly when entering the inside of the transport pipe 206;

[0045] Since the air is accelerated in the transport pipe 206 and has a large flow rate, it can be known from the Bernoulli principle that the faster the gas flow rate, the smaller its pressure, so that the pressure in the negative pressure pipe 207 is smaller, and then suction is generated in the vacuum hole negative pressure pipe 207, forming an upward airflow, so that the airflow generated when transporting coke and the upward wind direction are counteracted and disturbed, thereby effectively reducing the diffusion speed of dust. In addition, as suction is generated in the vacuum hole negative pressure pipe 207, the dust inside is sucked into the negative pressure pipe 207 and finally discharged into the collection box 202 for centralized collection;

[0046] Multi-level buffer plates 501 reduce the impact of coke falling: When coke is loaded through the discharge port, it will pass through multiple buffer plates 501. At this time, multiple buffer plates 501 will squeeze the elastic telescopic rod 502 and the external compression spring. The elastic effect of the compression spring will absorb part of the impact energy and slow down the falling speed of the coke. As the coke continues to fall, it will pass through the multi-level buffer plates 501 in turn. Each time it passes through a level of buffer plate 501, the falling speed of the coke will be further slowed down. Through multi-level buffering, the falling potential energy of the coke is gradually reduced, reducing the impact potential energy during the coke loading process, thereby reducing the generation of dust;

[0047] The telescopic shell 401 and the dust-proof plate 402 control the dust diffusion range: when loading the coke, the telescopic shell 401 and the dust-proof plate 402 installed at the bottom of the coke oven unloading shell 1 can effectively limit the dust diffusion range again, and limit the dust to the local space of the loading area, so as to avoid the disorderly diffusion of dust to the surrounding environment.

[0048] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0049] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0050] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and variations can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A coke screening building loading dust treatment device with a multi-stage dust suppression structure, comprising a coke oven unloading shell (1), characterized in that: A conveyor belt (7) is installed inside the coke oven unloading shell (1), a double-axis servo motor for driving the conveyor belt (7) is installed outside the coke oven unloading shell (1), a fixed plate (801) is fixedly connected inside the conveyor belt (7) via a driving roller, a driving block (804) is fixedly connected to an eccentric portion of the outside of the fixed plate (801), a driving plate (805) is slidably connected to the outside of the fixed plate (801), and a fan-shaped gear is fixedly connected to the end of the driving plate (805); A bidirectional rack plate (802) is slidably mounted on the outer side of the conveyor belt (7); a plurality of cylindrical gears (803) are movably connected to the outer side of the conveyor belt (7) via bearings; an atomizing pipe (305) is fixedly connected to the outer side of the cylindrical gear (803); a plurality of dry mist nozzles are fixedly connected to the outer side of the atomizing pipe (305); and a storage box (304) is mounted on the outer side of the coke oven unloading shell (1).

2. The coke screening building loading dust treatment equipment with a multi-stage dust suppression structure according to claim 1 is characterized in that: A mounting shell (201) is fixedly connected to one side of the top end of the coke oven unloading shell (1); a reciprocating screw is movably connected to the inside of the mounting shell (201) via a bearing; the outside of the reciprocating screw is threadedly connected to a driving frame (204); a cavity (203) is provided inside the mounting shell (201); a driving piston (205) is slidably connected to the inner wall of the cavity (203); a transport pipe (206) is connected to the bottom end of the mounting shell (201); a plurality of negative pressure pipes (207) are connected to the outside of the transport pipe (206); a collecting box (202) is fixedly connected to the outside of the coke oven unloading shell (1); and one end of the reciprocating screw is connected to a driving roller of a conveyor belt (7) via a transmission assembly.

3. The coke screening building loading dust treatment equipment with a multi-stage dust suppression structure according to claim 2 is characterized in that: The cross-sectional area of ​​the installation shell (201) is much larger than the cross-sectional area of ​​the transport tube (206), and one end of the transport tube (206) is connected to the interior of the collection box (202).

4. The coke screening building loading dust treatment equipment with a multi-stage dust suppression structure according to claim 1 is characterized in that: The inner wall of the coke oven unloading shell (1) is connected to a plurality of buffer plates (501) via a rotating shaft, the inner side of the buffer plate (501) is rotatably connected to an elastic telescopic rod (502), the outer side of the elastic telescopic rod (502) is sleeved with a compression spring, and one end of the elastic telescopic rod (502) is rotatably connected to the inner wall of the coke oven unloading shell (1).

5. The coke screening building loading dust treatment equipment with a multi-stage dust suppression structure according to claim 1 is characterized in that: The outer side of the sector gear is meshedly connected to the outer side of the bidirectional rack plate (802), and the outer side of the cylindrical gear (803) is meshedly connected to the outer side of the bidirectional rack plate (802).

6. The coke screening building loading dust treatment equipment with a multi-stage dust suppression structure according to claim 2 is characterized in that: The outside of the installation shell (201) is connected to an air intake pipe (6), and both the air intake pipe (6) and the transport pipe (206) are internally installed with a one-way valve, and the conduction directions of the two one-way valves are opposite.

7. The coke screening building loading dust treatment equipment with a multi-stage dust suppression structure according to claim 4 is characterized in that: A pump body (301) is fixedly installed on the top of the coking oven unloading shell (1), the output end of the pump body (301) is connected to a second connecting pipe (303), the input end of the pump body (301) is connected to a first connecting pipe (302), one end of the first connecting pipe (302) is connected to the top of a storage box (304), and one end of the second connecting pipe (303) is connected to the outside of a plurality of storage boxes (304).

8. The coke screening building loading dust treatment equipment with a multi-stage dust suppression structure according to claim 1 is characterized in that: The bottom end of the coke oven unloading shell (1) is detachably connected to a telescopic shell (401), and the bottom of the telescopic shell (401) is fixedly connected to a dustproof plate (402).

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