Screening and Coke Loading Dust Treatment Equipment with Multi-stage Dust Suppression Structure

Abstract

The present invention relates to the technical field of dust control, specifically a dust treatment device for screening and coking building loading 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-shaft servo motor for the operation of the conveyor belt is installed. Inside the conveyor belt, a fixed plate is fixedly connected through a driving roller. An eccentric driving block is fixedly connected to the outside of the fixed plate. A driving plate is slidably connected to the outside of the fixed plate. The end of the driving plate is fixedly connected to a sector gear. Compared with the prior art, in the coking furnace blanking housing of the present invention, a swingable dry fog nozzle is provided to generate micron-level dry fog particles to agglomerate dust, combined with the multiple effects of an air flow impact, a negative pressure dust suction system formed by the Bernoulli principle, and a bottom telescopic housing and a dust-proof plate, to achieve efficient suppression, directional collection and diffusion range control of dust, significantly improve the working environment and reduce pollution.

Description

Technical Field

[0001] The present invention relates to the technical field of dust control, and particularly to a dust treatment device for a coke screening building loading vehicle 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 a coke screening building loading vehicle 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 a coke screening building loading vehicle with a multi-stage dust suppression structure, including a coking furnace blanking housing, inside which a conveyor belt is installed, outside which a double-shaft 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] Further, one side of the top end of the coking furnace feeding 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 conveying pipe. A plurality of negative pressure pipes are communicated with the outside of the conveying pipe. A collection box is fixedly connected to the outside of the coking furnace feeding housing. One end of the reciprocating lead screw is connected to the driving roller of the conveyor belt through a transmission assembly.

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

[0009] Further, a plurality of buffer plates are connected to the inner wall of the coking furnace feeding 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 feeding housing.

[0010] Further, 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] Further, 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 conveying pipe, and the conduction directions of the two one-way valves are opposite.

[0012] Further, a pump body is fixedly installed at the top of the coking furnace feeding 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 box. One end of the second connecting pipe is communicated with the outside of a plurality of storage boxes.

[0013] Further, the bottom end of the coking furnace feeding 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 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 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 it is generated, effectively reducing the initial diffusion amount of the dust. In addition, the dry mist nozzles can swing back and forth at an angle, significantly increasing the spraying range of the dry mist nozzles and ensuring the comprehensiveness and uniformity of the dust suppression effect. This design not only reduces the dust concentration and 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 at the dust suction points to achieve wind direction counter-flows and turbulences, effectively reducing the diffusion speed of the dust. At the same time, by means of the Bernoulli principle, a negative pressure area is formed in the guide trough 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, limiting the dust to a local space in 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 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 I; 303, connecting pipe II; 304, storage tank; 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 coke screening building 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 inside the conveyor belt 7 through a driving roller. A drive block 804 is fixedly connected to the eccentric part outside the fixing plate 801. A drive plate 805 is slidably connected to the outside of the fixing plate 801. The end of the drive plate 805 is fixedly connected to a sector gear;

[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 tank 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 II 303. The input end of the pump body 301 is communicated with a connecting pipe I 302. One end of the connecting pipe I 302 is communicated with the top of the storage tank 304. One end of the connecting pipe II 303 is communicated with the outside of a plurality of storage tanks 304.

[0031] The conveyor belt 7 is used to convey coke. The coking furnace blanking housing 1 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 coking furnace blanking housing 1 starts and drives the driving roller to rotate. The rotation of the driving roller causes the conveyor belt 7 to start working, and the coke is conveyed to the blanking port of the coking furnace blanking housing 1 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, and 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 coking furnace blanking housing 1 is fixedly connected with an installation housing 201. A reciprocating screw rod is movably connected inside the installation housing 201 through a bearing. A driving frame 204 is threadedly connected to the outside of the reciprocating screw rod. 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 coking furnace blanking housing 1. One end of the reciprocating screw rod is connected to the driving roller of the conveyor belt 7 through a transmission component.

[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, and the conducting directions of the two check valves are opposite. The transmission component includes two synchronous pulleys. One of the synchronous pulleys is fixedly connected to one end of the reciprocating screw rod, 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 screw rod 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 conducting 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 pipe 207 through the conveying pipe 206 and will not flow reversely.

[0037] The inner wall of the charging housing 1 of the coke oven 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 charging housing 1 of the coke oven.

[0038] The bottom end of the charging housing 1 of the coke oven 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 feeding 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 charging housing 1 of the coke oven. 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 charging housing 1 of the coke oven is discharged into the feeding port of the charging housing 1 of the coke oven through the conveyor belt 7;

[0042] Mechanical linkage realizes the angular deflection of the dry fog nozzle: When the conveyor belt 7 is working, the rotation of the driving roller will drive the fixed plate 801 to rotate, and 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 nozzle 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 nozzle, the spraying range of the dry fog nozzle is significantly improved. The micron-level dry fog particles generated by the dry fog nozzle 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 collection system reduces dust diffusion: Start the other output end of the double-shaft servo motor, which drives the transmission component to work. In cooperation with the transmission component, the reciprocating lead screw rotates, and the driving frame 204 reciprocates along the outer side of the reciprocating lead screw, thus driving the driving piston 205 to reciprocate along the inner wall of the cavity 203. When the driving piston 205 moves away from the driving frame 204, the check valve inside the intake pipe 6 closes at this time, while the check valve inside the transport pipe 206 opens. At this time, the air inside the cavity 203 enters the negative pressure pipe 207. Since the cross-sectional area of the installation housing 201 is much smaller than that of the transport pipe 206, when the air enters the transport pipe 206, its speed increases rapidly;

[0045] Since the air accelerates in the transport pipe 206 and has a relatively high flow rate, according to Bernoulli's principle, the faster the gas flow rate, the smaller its pressure. Thus, the pressure inside the negative pressure pipe 207 is relatively small, which further generates suction in the dust suction hole of the negative pressure pipe 207, forming an upward air flow, so that the air flow generated during the transportation of coke is in counterflow and turbulence with this upward air flow, thereby effectively reducing the dust diffusion speed. In addition, as suction is generated in the dust suction hole of the negative pressure pipe 207, the dust inside it is sucked into the negative pressure pipe 207 and finally discharged into the collection box 202 for centralized collection;

[0046] The multi-stage buffer plate 501 reduces the impact of coke falling: When the coke is loaded into the vehicle through the feeding port, it will pass through multiple buffer plates 501. At this time, the multiple buffer plates 501 will squeeze the elastic telescopic rod 502 and the external compression spring. The elastic action 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 and passes through the multi-stage buffer plates 501 in turn, the falling speed of the coke will be further slowed down after passing through each stage of the buffer plate 501. Through multi-stage buffering, the falling potential energy of the coke gradually decreases, reducing the impact potential energy during the coke loading process, thereby reducing the generation of dust;

[0047] The telescopic housing 401 and the dust-proof plate 402 control the dust diffusion range: When loading the coke, the telescopic housing 401 and the dust-proof plate 402 installed at the bottom of the coking furnace feeding housing 1 can effectively limit the dust diffusion range again, confine the dust within the local space of the loading area, and prevent the dust from diffusing disorderly into the surrounding environment.

[0048] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution. As long as it does not deviate from the structure of the invention or exceed the scope defined by this claim book, it shall 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 embodiments. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art 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. Dust treatment equipment for the loading of the coke screening building with a multi-level dust suppression structure, including a coking oven blanking housing (1), characterized in that, Inside the coking furnace blanking housing (1), a conveyor belt (7) is installed. Outside the coking furnace blanking housing (1), a double-shaft servo motor for the operation of the conveyor belt (7) is installed. Inside the conveyor belt (7), a fixing plate (801) is fixedly connected through a driving roller. At an eccentric position outside the fixing plate (801), a driving block (804) is fixedly connected. Outside the fixing plate (801), a driving plate (805) is slidably connected, and at the end of the driving plate (805), a sector gear is fixedly connected. Outside the conveyor belt (7), a bidirectional rack plate (802) is slidably installed. Outside the conveyor belt (7), a plurality of cylindrical gears (803) are rotatably connected through bearings. Outside the cylindrical gears (803), an atomizing pipe (305) is fixedly connected. Outside the atomizing pipe (305), a plurality of dry mist nozzles are fixedly connected. Outside the coking furnace blanking housing (1), a storage tank (304) is installed. On one side of the top of the coking furnace blanking housing (1), an installation housing (201) is fixedly connected. Inside the installation housing (201), a reciprocating lead screw is rotatably connected through a bearing. Outside the reciprocating lead screw, a driving frame (204) is threadedly connected. Inside the installation housing (201), a cavity (203) is formed. Inside the cavity (203), a driving piston (205) is slidably connected. At the bottom of the installation housing (201), a transport pipe (206) is communicated. Outside the transport pipe (206), a plurality of negative pressure pipes (207) are communicated. Outside the coking furnace blanking housing (1), a collection box (202) is fixedly connected. One end of the reciprocating lead screw is connected to the driving roller of the conveyor belt (7) through a transmission component. Inside the wall of the coking furnace blanking housing (1), a plurality of buffer plates (501) are connected through a rotating shaft. Inside the buffer plates (501), elastic telescopic rods (502) are rotatably connected. Outside the elastic telescopic rods (502), compression springs are sleeved. One end of the elastic telescopic rods (502) is rotatably connected to the inner wall of the coking furnace blanking housing (1). The outside of the sector gear is meshed with the outside of the bidirectional rack plate (802), and the outside of the cylindrical gear (803) is meshed with the outside of the bidirectional rack plate (802).

2. The coke screening building loading dust treatment equipment with a multi-stage dust suppression structure according to claim 1, characterized in that, The cross-sectional area of the installation housing (201) is much larger than the cross-sectional area of the transport pipe (206). One end of the transport pipe (206) is communicated with the inside of the collection box (202).

3. The coke screening building loading dust treatment equipment with a multi-stage dust suppression structure according to claim 1, characterized in that, 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 transport pipe (206), and the conduction directions of the two check valves are opposite.

4. The dust treatment equipment for screening and coke loading building with a multi-stage dust suppression structure according to claim 1, characterized in that, A pump body (301) is fixedly installed at the top of the coking furnace blanking housing (1). The output end of the pump body (301) is communicated with a second connecting pipe (303), and the input end of the pump body (301) is communicated with a first connecting pipe (302). One end of the first connecting pipe (302) is communicated with the top of a storage tank (304), and one end of the second connecting pipe (303) is communicated with the outside of a plurality of storage tanks (304).

5. The coke screening building loading dust treatment equipment with a multi-stage dust suppression structure according to claim 1, characterized in that, The bottom end of the coking furnace blanking housing (1) is detachably connected with a telescopic housing (401), and a dust-proof plate (402) is fixedly connected to the bottom of the telescopic housing (401).

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