An efficient dust removal device

Abstract

The present invention provides an efficient dust removal device, including a cyclone dust removal part and an angle steel dust removal part. The angle steel dust removal part is located above the cyclone dust removal part. A dust collection structure is provided at the junction between the cyclone dust removal part and the angle steel dust removal part, and a cleaning device is provided inside the cyclone dust removal part. There is a dust collection device inside the equipment, which can collect the sludge inside different dust removal devices together. Combined with the cleaning device, it can realize self-cleaning of the sludge inside the equipment, eliminating the need for manual cleaning and having a higher cleaning efficiency. There is a cyclone dust removal part and an angle steel dust removal part inside the equipment. After the high-temperature pyrolysis gas coming out of the reactor passes through the cyclone dust removal part, the gas flow rate becomes faster, further promoting the contact between the high-temperature pyrolysis gas and the angle steel, making the dust in the high-temperature pyrolysis gas more likely to adhere to the angle steel and improving the dust removal efficiency of the angle steel dust removal part for the high-temperature pyrolysis gas.

Description

Technical Field

[0001] The present invention relates to the technical field of coal processing, and particularly to an efficient dust removal device. Background Art

[0002] Activated carbon is a carbon-based adsorbent material produced from various carbon-containing materials through an appropriate technological process. Due to its large specific surface area, excellent adsorption performance, and stable physical and chemical properties, it is widely used in many fields of industry, agriculture, military protection, and people's daily lives for decolorization and refining, water treatment, deep purification of drinking water, gas separation and refining, air purification, removal of toxic and harmful gases, catalysts, and catalyst carriers. And with the continuous development of the economy and the gradual improvement of people's living standards, its application fields and usage amounts are steadily increasing. In China, the proportion of activated carbon produced from woody raw materials is gradually decreasing, while the proportion of activated carbon produced from coal is on the rise. Coal-based activated carbon is made mainly from coal, and the physical and chemical properties of the raw coal have a significant impact on the product performance of coal-based activated carbon. Activated carbon produced from ultra-low ash coal, with low impurity content and high added value, has become a new generation of high-quality activated carbon products.

[0003] In the process of processing coal into activated carbon, coal undergoes a pyrolysis reaction in a reaction kettle, generating a large amount of high-temperature pyrolysis gas, which mainly includes hydrogen, methane, ethylene, carbon monoxide, ammonia, benzene, toluene, xylene, and other complex aromatic hydrocarbon compounds. The high-temperature pyrolysis gas coming out of the reaction kettle carries a large amount of dust. This high-temperature pyrolysis gas cannot be directly utilized because the dust in the high-temperature pyrolysis gas easily clogs the pipeline. At the same time, the high-temperature pyrolysis gas containing a large amount of dust cannot be separated according to different boiling points. Therefore, the dust must be reduced to a certain extent before the subsequent high-temperature pyrolysis gas can be separated according to different boiling points. In addition, the dust in the high-temperature pyrolysis gas generated by the pyrolysis reaction will adhere to the heat exchange devices (such as coal tar coolers, light oil coolers, spray cooling devices, washing and cooling towers), resulting in low thermal efficiency and equipment damage. Also, if dust removal is not carried out, it is very difficult to separate heavy oil, light oil, water, and non-condensable gases. Therefore, in general coal processing, the first thing to do after passing through the reaction kettle is dust removal.

[0004] A composite dust removal device is a dust removal device with multiple dust removal devices inside. After long-term operation, a large amount of sludge will be generated inside each dust removal device. These sludges are generally in powder or block form. If the sludge inside each dust removal device is not discharged in time, it will affect the overall dust removal efficiency of the device. Equipment maintenance personnel need to regularly clean the sludge in each dust removal device, which is very cumbersome. Summary of the Invention

[0005] The object of the present invention is to provide an efficient dust removal device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is an efficient dust removal device, including a cyclone dust removal part and an angle steel dust removal part. The angle steel dust removal part is located above the cyclone dust removal part. A dust collection structure is provided at the junction of the cyclone dust removal part and the angle steel dust removal part. A cleaning device is provided inside the cyclone dust removal part.

[0007] Further, a first chamber is provided inside the cyclone dust removal part, and a second chamber is provided inside the angle steel dust removal part. The dust collection structure includes a partition plate that separates the first chamber and the second chamber. A channel connecting the first chamber and the second chamber is provided between the cyclone dust removal part and the angle steel dust removal part, and the channel penetrates the partition plate.

[0008] Further, an angle steel layer is provided inside the second chamber. There are at least two layers of angle steel layers, and different angle steel layers are arranged vertically. Among them, the angle steel layer is composed of angle steels arranged at equal intervals. Steel grooves are provided on the angle steels, and the openings of the steel grooves face downward.

[0009] Further, the angle steels in the upper and lower adjacent angle steel layers are arranged staggeredly.

[0010] Further, a rotatable control plate is provided on the partition plate. The partition plate has a first solid part and a first hollow part, and the control plate has a second solid part and a second hollow part.

[0011] Further, three first mudguards are arranged in a circumferential array on the outer wall of the channel, and three second mudguards are arranged in a circumferential array on the control plate. The first mudguards and the second mudguards are arranged at intervals.

[0012] Further, an arc-shaped rack is provided on the control plate, and a motor is also provided inside the second chamber. The motor is connected to a gear, and the gear meshes with the rack.

[0013] Further, the rack is provided between two second mudguards, and a notch is provided on the first mudguard located between the two second mudguards, and the rack passes through the notch.

[0014] Further, the cleaning device is integrally annular and surrounds the outside of the first wall body for one week. The cleaning device includes a cleaning chamber. A communication hole is provided on the first wall body, and the communication hole connects the cleaning chamber and the first chamber. A spray head is installed inside the cleaning chamber, and the spray head faces the direction of the first chamber.

[0015] Furthermore, an active sealing door is provided at the position of the communication hole on the inner side of the first wall body. The sealing door is controlled to move by a driving device. The driving device includes a linear guide rail located on the outer side of the first wall body and inside the cleaning chamber. A slidable slider is provided on the guide rail. Slot holes are provided on both sides of the first wall body at the position of the driving device. A connecting block extending into the slot holes is provided on the slider, and the connecting block is connected to the sealing door.

[0016] In summary, the beneficial effects of the present invention are as follows: The equipment provided by the present invention has a dust collection device inside, which can collect the sludge in different dust removal devices together. With the cooperation of the cleaning device, it can realize self-cleaning of the sludge in the equipment, eliminating the need for manual cleaning and having higher cleaning efficiency; The upper sealing cover and the lower sealing cover are provided inside the equipment, which are used to fix and protect the motor and prevent sludge and dust from contacting the motor, thereby prolonging the service life of the motor; The setting of the first mudguard and the second mudguard can transfer the vast majority of the sludge in the upper dust removal device to the lower dust removal device; The equipment has a cyclone dust removal part and an angle steel dust removal part inside. After the high-temperature pyrolysis gas from the reactor passes through the cyclone dust removal part, the gas flow rate becomes faster, further promoting the contact between the high-temperature pyrolysis gas and the angle steel, making the dust in the high-temperature pyrolysis gas more likely to adhere to the angle steel and improving the dust removal efficiency of the angle steel dust removal part for the high-temperature pyrolysis gas; By adjusting the layout of the spatial position of the angle steel inside the angle steel dust removal part, the dust removal efficiency is improved; The double-layer equipment structure design, combined with different sensors and a modern control system, realizes unmanned operation in the factory and improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an efficient dust removal equipment provided by the present invention;

[0018] Figure 2 is Figure 1 an exploded view of the structure of area "A" in

[0019] Figure 3 is Figure 1 a schematic structural diagram of area "A" in

[0020] Figure 4 is Figure 3 a top view of

[0021] Figure 5 is Figure 1 a schematic structural diagram of another state;

[0022] Figure 6 is Figure 5 a top view of

[0023] Figure 7 is Figure 1 a partial enlarged schematic diagram of area "B" in

[0024] Figure 8 is Figure 1 a sectional view in the "C-C" direction in

[0025] Figure 9 is Figure 8 an enlarged partial view of area "D" in

[0026] Figure 10 a schematic diagram of the internal structure of an efficient dust removal device composed of a cyclone dust collector and an angle steel dust collector;

[0027] Figure 11 a schematic diagram of the flow of high-temperature pyrolysis gas after contacting the angle steel;

[0028] Figure 12 is Figure 10 a partial schematic diagram of the arrangement of angle steel in the third cavity in

[0029] Figure 13 is Figure 12 a three-dimensional view of

[0030] Figure 14 is Figure 13 a top view of

[0031] Figure 15 a schematic diagram of the staggered positions of the angle steel layers;

[0032] Figure 16 a double-layer structure diagram of a composite dust removal device composed of a cyclone dust collector and an angle steel dust collector. Specific Embodiments

[0033] The following further describes the embodiments of the present invention in detail with reference to the accompanying drawings. It should be noted that the embodiments are only detailed descriptions of the present invention and should not be regarded as limitations of the present invention. All the features disclosed in the embodiments of the present invention, or all the steps in the disclosed methods or processes, can be combined in any way except for mutually exclusive features and / or steps.

[0034] This embodiment provides an efficient dust removal device, including at least two stages of dust removal devices for reducing the dust in high-temperature pyrolysis gas. After long-term operation, a large amount of sludge will be generated inside each stage of the dust removal device. This sludge is generally in powder or block form. If the sludge in each stage of the dust removal device is not discharged in time, it will affect the overall dust removal efficiency of the device. And an efficient dust removal device provided by the present invention is provided with a dust collection device between adjacent two stages of dust removal devices. The dust collection device can collect the sludge inside the two stages of dust removal devices together. At the same time, a cleaning device is also provided inside the dust removal device, which can regularly discharge the sludge collected inside the device to avoid a large amount of accumulation of sludge inside the device, so as to improve the dust removal efficiency of the device. Specifically, refer to the attached Figure 1, including a primary dust removal part 10 and a secondary dust removal part 20. A gas inlet 11 is provided on the primary dust removal part 10, and a gas outlet 21 is provided on the secondary dust removal part 20. The primary dust removal part 10 and the secondary dust removal part 20 are arranged vertically. A passage 15 is provided between the primary dust removal part 10 and the secondary dust removal part 20. The high-temperature pyrolysis gas entering the primary dust removal device 10 through the gas inlet 11 is subjected to primary dust removal. The sludge produced after the primary dust removal of the high-temperature pyrolysis gas adheres to the inner wall of the primary dust removal device 10 or falls to the bottom of the primary dust removal device 10. Subsequently, the high-temperature pyrolysis gas after the primary dust removal enters the secondary dust removal part 20 through the passage 15 for secondary dust removal. The sludge produced after the secondary dust removal of the high-temperature pyrolysis gas falls to the bottom of the secondary dust removal part 10.

[0035] Preferably, a dust collection structure is provided at the junction of the primary dust removal part 10 and the secondary dust removal part 20. The dust collection structure can transfer most of the sludge in the upper secondary dust removal part 20 to the lower primary dust removal part 10, facilitating the centralized treatment of the sludge and reducing the difficulty of sludge cleaning at the same time. Specifically, referring to the attached Figure 1 - attached Figure 6 , the dust collection structure includes a partition 80 at the junction of the primary dust removal part 10 and the secondary dust removal part 20. The partition 80 is provided with a first solid part 84 and a first hollow part 81. The partition 80 is also provided with a rotatable control plate 82. The control plate 82 is provided with a second solid part 85 and a second hollow part 83. By controlling the movement of the control plate 82 on the partition 80, the function can be switched. When the second solid part 85 on the control plate 82 seals the first hollow part 81 on the partition 82, and the first solid part 84 on the partition 80 seals the second hollow part 83, the sludge in the upper secondary dust removal part 20 cannot be transferred to the lower primary dust removal part 10 at this time; when the control plate 82 moves, the second solid part 85 on it does not completely seal the first hollow part 81. At this time, the first hollow part 81 is communicated with the second hollow part 83, and the sludge in the upper secondary dust removal part 20 can be transferred to the lower primary dust removal part 10 through the communication position.

[0036] Preferably, the channel 15 is a circular channel. There is a round hole 86 on the control board 82 that matches the channel. The round hole 86 is sleeved on the channel 15 and is rotatably and cooperatively connected to the channel 15. Preferably, a bearing is provided in the round hole 86 of the control board 82. The inner ring of the bearing is connected to the outer wall of the channel 15, enabling the control board 82 to freely rotate on the partition board 80. By rotating the control board 82, the function switching of the control board 82 can be realized. Specifically, both the partition board 80 and the control board 82 are circular. The channel 15 is located at the center of the partition board 80. The first hollowed-out part 81 on the partition board 82 and the second hollowed-out part 83 on the control board 82 are both fan-shaped, and the fan angles formed by these two hollowed-out parts are less than sixty degrees. There are three first hollowed-out parts 81 distributed in a circumferential array on the partition board 82, and there are three second hollowed-out parts 83 provided on the control board 82.

[0037] Preferably, the control board 82 is driven by a motor. There are many ways of motor drive, including driving connected to the rotation center, rack and pinion drive, gear meshing drive, pulley drive, and sprocket drive. In this embodiment, an arc-shaped rack 87 is provided on the control board 82, and a motor 88 is provided inside the device. The motor 88 is connected to a gear 89, and the gear 89 can drive the rack 87 to move, and the rack 87 drives the control board 82 to move.

[0038] Preferably, referring to the attached Figure 1 and the attached Figure 2 , an upper seal cover 70 and a lower seal cover 71 are provided on the motor 88. The upper seal cover 70 and the lower seal cover 71 wrap the motor 88 inside. Only the rotating shaft of the motor 88 extends outside to connect to the gear 89. The upper seal cover 70 and the lower seal cover 71 are connected to the device. The main functions of the upper seal cover 70 and the lower seal cover 71 are to fix the motor 88 and prevent sludge and dust from contacting the motor, so as to extend the service life of the motor. Further, in this embodiment, the rotating shaft for fixing the motor 88 passes through the lower seal cover 71 to connect to the gear. In order not to interfere with the operation of the motor 88, a through hole is provided on the lower seal cover 71, and the rotating shaft of the motor 88 passes through the through hole. Further, the rotating shaft for fixing the motor 88 is vertically downward, so that the through hole is located at the lower side position of the lower seal cover 71, and it is not easy for sludge and dust to contact the motor 88 through the through hole. Further, a bearing is installed in the through hole, the bearing is sleeved on the rotating shaft of the motor 88, and a dust retaining ring is provided on the bearing.

[0039] Preferably, the upper end surface of the upper seal cover 70 is inclined, and the sludge falling on the upper seal cover 70 will slowly slide off, avoiding a large amount of sludge remaining on the upper seal cover 70.

[0040] Preferably, a first mudguard 72 is provided on the outer wall of the channel 15. Matched with the three first hollow portions 81, there are also three first mudguards 72. The first mudguards 72 are spaced 120 degrees apart. The distance between the lower end of the first mudguard 72 and the upper end of the control board 82 is about 2 mm. When the motor 88 drives the control board 82 to rotate, the first mudguard 72 can block the sludge falling on the second solid portion 85 and drop it into the primary dust removal portion 10 from the communication position between the first hollow portion 81 and the second hollow portion 83. In some other embodiments, the distance between the lower end of the first mudguard 72 and the upper end of the control board 82 is about 2 cm. A brush is provided at the lower end of the first mudguard 72, and the brush contacts the upper end of the control board 82. When the motor 88 drives the control board 82 to rotate, the brush can sweep the sludge falling on the second solid portion 85 into the primary dust removal portion 10 from the communication position between the first hollow portion 81 and the second hollow portion 83.

[0041] Preferably, a second mudguard 73 is provided on the control board 82. Matched with the three second hollow portions 83, there are also three second mudguards 73. The second mudguards 73 are spaced 120 degrees apart. The three second mudguards 73 and the three first mudguards 72 are arranged at intervals. When the motor 88 drives the control board 82 to rotate, the second mudguard 73 can push the sludge originally on the first solid portion 84 into the primary dust removal portion 10 from the communication position between the first hollow portion 81 and the second hollow portion 83. The settings of the first mudguard 72 and the second mudguard 73 can transfer the vast majority of the sludge in the secondary dust removal portion 20 to the lower primary dust removal portion 10.

[0042] The rack 87 is located between the two second mudguards 73. Since the three second mudguards 73 and the three first mudguards 72 are arranged at intervals, a notch 74 is provided on the first mudguard 72 between the two second mudguards 73 where the fixed rack 87 is located. The rack passes through the notch 74 to connect the two second mudguards 73. The operation of the motor 88 can be controlled by a computer, a timer, or a limit switch.

[0043] The working principle of the dust collection structure is briefly described below. Refer to the attached Figure 3 、attached Figure 4, this is the initial state of the dust collection structure. The first fender 72 and the second fender 73 are combined. At this time, the second solid part 85 on the control board 82 seals the first hollow part 81 on the partition board 80, and the first solid part 84 on the partition board 80 seals the second hollow part 83. The motor 88 is located near the first fender 72. By starting the motor 88, the motor 88 drives the rack 87 to move through the gear 89, and the rack 87 drives the control board 82 to rotate. The first fender 72 blocks the sludge falling on the second solid part 85 and drops it into the primary dust removal part 10 from the communication position between the first hollow part 81 and the second hollow part 83. The second fender 73 can push the sludge originally on the first solid part 84 into the primary dust removal part 10 from the communication position between the first hollow part 81 and the second hollow part 83. Thus, the sludge in the upper secondary dust removal part 20 is transferred to the lower primary dust removal part. Refer to the attached Figure 5 , attached Figure 6 , when the second fender 73 is about to touch the motor 88 as it rotates with the control board 82, the set timer time is up, or the limit switch is triggered, and the motor reverses, and the dust collection structure gradually returns to the initial state.

[0044] As the dust collection structure works, there will be a situation where a large amount of sludge in the secondary dust removal part 20 drops into the primary dust removal part 10. Therefore, it is generally not suitable to select a dust removal device with a complex internal structure for the primary dust removal 10, such as a wall-hitting dust removal device or an angle steel dust removal device. The primary dust removal 10 preferably selects a dust removal device with a simple internal structure and a large internal space, such as a cyclone dust removal device. Since there will be no situation where sludge falls from other dust removal parts into the secondary dust removal part 20, there are not many restrictions on its selection, and most industrial dust removal methods can be used. The following is a specific description in combination with the specific primary dust removal part 10 and secondary dust removal part 20: In this embodiment, refer to the attached Figure 10 , the primary dust removal part 10 is a cyclone dust removal part 10, and the secondary dust removal part 20 is an angle steel dust removal part 20. Among them, the cyclone dust removal part 10 is internally connected to the angle steel dust removal part 20. The cyclone dust removal part 10 includes a gas inlet 11 for introducing pyrolysis gas, and the angle steel dust removal part 20 includes a gas outlet 21 for discharging pyrolysis gas. The high-temperature pyrolysis gas first enters the cyclone dust removal part 10 through the gas inlet 11 for primary dust removal, and then the high-temperature and high-speed pyrolysis gas coming out of the cyclone dust removal part 10 enters the angle steel dust removal part 20 for secondary dust removal. After the high-temperature pyrolysis gas passes through the cyclone dust removal part 10, the gas flow rate becomes faster, which further promotes the contact between the high-temperature pyrolysis gas and the angle steel, making the dust in the high-temperature pyrolysis gas easier to adhere to the angle steel, and improving the dust removal efficiency of the angle steel dust removal part 20 for the high-temperature pyrolysis gas.

[0045] The cyclone dust removal part 10 includes a first wall 12 and a second wall 13. Both the first wall 12 and the second wall 13 are annular walls. The first wall 12 wraps around the outside of the second wall 13. The area formed between the first wall 12 and the second wall 13 is the first chamber 14. The area wrapped by the second wall 13 is the channel 15. The first chamber 14 is communicated with the channel 15. The gas inlet 11 is communicated with the first chamber 14. The annular wall of the lower part of the first wall 12 gradually becomes smaller (i.e., the lower part of the first chamber 14 gradually becomes smaller), presenting a funnel shape 16. The funnel-shaped 16 part is vertically opposite to the channel 15. Under the action of the fan, the high-temperature pyrolysis gas enters the first chamber 14 from the gas inlet 11. The high-temperature pyrolysis gas contacts and rubs against the inner wall of the first chamber 14, and the dust in the high-temperature pyrolysis gas adheres to the inner wall of the first chamber 14. Since the high-temperature pyrolysis gas continuously enters the first chamber 14 from the gas inlet 11, the high-temperature pyrolysis gas that first enters the first chamber 14 at the beginning will move downward along the inner wall of the first chamber 14 in a circular motion until the high-temperature pyrolysis gas encounters the funnel-shaped 16 part of the first wall 12. There is not enough space in the first chamber 14 for the high-temperature pyrolysis gas to continue moving downward. Therefore, the high-temperature pyrolysis gas converges towards the middle and then moves upward and enters the channel 15.

[0046] Preferably, the first wall 12 and the second wall 13 are circular annular walls, which can reduce the gas flow rate loss formed by the friction between the first wall 12, the second wall 13 and the high-temperature pyrolysis gas.

[0047] Preferably, the gas inlet 11 is tangent to the first wall 12, which can make the high-temperature pyrolysis gas enter the first chamber 14 tangentially and can improve the dust removal effect of the cyclone dust removal part 10.

[0048] After the cyclone dust removal part 10 has been working for a long time, a large amount of sludge will accumulate on the inner wall and bottom of the first chamber 14, especially at the funnel-shaped 16 position. At the same time, the sludge in the secondary dust removal part will also be collected here through the dust collection structure for treatment. Refer to the attached Figure 1 、Attached Figures 7 - 9 , a cleaning device 50 is provided on the outside of the first wall 12. The cleaning device 50 is located below the bottom of the third wall 22. The cleaning device 50 includes a cleaning chamber 51. The cleaning chamber 51 can be communicated with the first chamber 14. A spray head 52 is installed in the cleaning chamber 51. The spray head 52 faces the direction of the first chamber 14. Further, the spray head 52 faces the funnel-shaped 16 part of the first chamber 14 because the vast majority of the sludge adheres to the funnel-shaped 16 position, and this position is the most difficult to clean. The spray head 52 is connected to an external water pump 53 through a water pipe. By spraying water into the first chamber 14 through the spray head 52, the dust in the first chamber 14 can be quickly washed away, and the cleaning effect is very good. For some sludge that is difficult to clean, the water pressure in the spray head 52 can be increased for cleaning.

[0049] Preferably, referring to the attached Figure 6 , a communication hole 54 is provided on the first wall body 12, and the communication hole 54 communicates the cleaning chamber 51 with the first chamber 14. An active sealing door 55 is provided inside the first wall body 12 at the position of the communication hole 54. The sealing door 55 is controlled by a driving device 56, and the up and down movement of the sealing door 55 can be controlled. When the sealing door 55 is in the upper position, the cleaning chamber 51 communicates with the first chamber 14; when the sealing door 55 is in the lower position, the cleaning chamber 51 is separated from the first chamber 14. The significance of setting the sealing door 55 is that when the device is working, the cleaning chamber 51 is separated from the first chamber 14, and gas will not flow into the cleaning chamber 51. Therefore, the cleaning chamber 51 will not affect the gas flow in the first chamber 14 during dust removal.

[0050] The driving device 56 is used to control the up and down movement of the sealing door 55. The driving device 56 can be selected from rack and pinion, lead screw slider, linear motor, slide rail slider, which are common linear driving devices in the mechanical field. Specifically, a linear slide rail slider is selected. Referring to the attached Figures 7 - 9 , a linear guide rail 58 is provided on the outer side of the first wall body 12 and inside the cleaning chamber 51. A slider 59 that can slide up and down is provided on the guide rail 58. Slot holes 57 are provided on the front and back sides of the first wall body 12 at the position of the driving device 56. A connecting block 49 that extends into the slot holes 57 is provided on the slider 59, and the connecting block 49 is connected to the sealing door 55, so that the sealing door 55 can move along with the driving device 56.

[0051] Preferably, referring to the attached Figure 8 , the cleaning device 50 is integrally annular, surrounding the outer side of the first wall body 12 for one week. A plurality of spray heads 52 are provided in the cleaning chamber 51, generally 4-8. The spray heads 52 are arranged in a circumferential array. The setting of the plurality of spray heads 52 helps to improve the cleaning efficiency. Further, the sealing door 55 is also annular, and it is provided on the inner wall of the first wall body 12. In this embodiment, the sealing door 55 is driven by four groups of linear slide rail sliders, and the slide rail sliders are also arranged in a circumferential array. The setting of multiple groups of slide rail sliders helps the up and down movement of the annular sealing door 55 to be smoother.

[0052] Preferably, the spray heads 52 provided in the cleaning chamber 51 are at an angle, so that the water sprayed by the spray heads 52 can wash down in a circular motion like the high-temperature pyrolysis gas in the first chamber 14, which helps to improve the cleaning effect.

[0053] Preferably, referring to the attached Figure 10, a sludge storage tank 30 is provided at the lower side of the funnel shape 16 of the first wall 12. A valve 31 is provided between the sludge storage tank 30 and the first chamber 14. The valve 31 is used to control the sludge in the first chamber 14 to enter the sludge storage tank 30. By opening the valve 31, the sludge on the inner wall and bottom of the first chamber 14 will enter the sludge storage tank 30. The valve 36 is preferably a flanged hard-sealed butterfly valve. Since the equipment includes a cleaning device 50, a large amount of water will be filled in the equipment during the cleaning process, and this water needs to be discharged. To solve the trouble of removing the sludge storage tank 30 during each cleaning, a water outlet 81 is provided at the bottom of the sludge storage tank 30, and the water outlet 81 leads to a wastewater tank 82.

[0054] The secondary dust removal part will be described in detail below: The angle steel dust removal part 20 includes a third wall 22. The area enclosed by the third wall 22 is the third chamber 29. The second wall 13 extends into the third wall 22. The passage 15 connects the first chamber 14 and the third chamber 29. Therefore, the high-temperature pyrolysis gas can enter the third chamber 29 through the passage 15. An angle steel layer 23 is provided in the third chamber. The angle steel layer 23 is composed of multiple angle steels 24. Generally, the number of angle steels 24 in one layer of the angle steel layer 23 is more than three. The specific number is determined by the internal size of the third chamber 29 applied in actual production, the selected angle steel size, the processing capacity of the reactor, and the volatile content of different coals through experimental calculation. Refer to the appendix Figure 11 , a steel groove 25 is provided on the angle steel 24. The opening of the steel groove 25 faces the side of the second wall 13. The steel groove 25 is used to remove dust from the high-temperature pyrolysis gas. Generally, the second wall 13 is arranged below the angle steel layer 23. Therefore, most of the steel grooves 25 are arranged downward. When the high-temperature pyrolysis gas enters the interior of the third chamber 29 and moves upward, refer to the appendix Figure 11 , the high-temperature pyrolysis gas contacts the angle steel 24, first moves upward along the angle steel groove 25 until it reaches the vertex 26 position of the angle steel groove 25 and cannot continue to move upward. Then it turns back along the angle steel groove 25 and flows through the gap between adjacent angle steels 24 and continues to move upward to contact the upper layer of angle steel layer. During the movement of the high-temperature pyrolysis gas along the steel groove 25, the dust in the high-temperature pyrolysis gas will adhere to the angle steel groove 25 to form sludge 27. When more sludge 27 adheres to the angle steel groove 25, the gravity of the sludge 27 is greater than the adhesion force between the sludge 27 and the angle steel groove 25. At this time, the sludge 27 will fall.

[0055] Preferably, the third wall 22 is connected to the first wall 12, that is, the outer contour and inner contour of the third wall 22 are exactly the same as the outer contour and inner contour of the first wall 12. The integrity of the equipment is stronger, and it is also convenient for installation and transportation. Further, the inner diameter of the second wall 13 is 1 / 4 - 1 / 2 of the inner diameter of the first wall 12.

[0056] Preferably, refer to the appendix Figure 10, in order to prevent the sludge 27 in the angle steel dust removal part 20 from falling and then entering the cyclone dust removal part 10 again through the channel 15, a dust baffle 17 is provided at the connection position between the cyclone dust removal part 10 and the angle steel dust removal part 20 (that is, a dust baffle 17 is provided at the upper side position of the channel 15 in the third cavity 29), and the orthographic projection (projection in the vertical direction) of the dust baffle 17 can cover the channel 15. In this embodiment, in order to fix the dust baffle 17, the dust baffle 17 is connected to the second wall 13 through a connecting rod 18. Several connecting rods 18 can be arranged in a circumferential array to ensure that the dust baffle 17 is firmly fixed after being fixed. In some other embodiments, the dust baffle 17 can also be connected to the inner wall of the third cavity 29. Further, the cross-section of the dust baffle 17 is inclined, so that the sludge falling on the dust baffle 17 slides down along the inclined surface of the dust baffle and finally falls to the bottom of the third cavity 29. Further, the cross-section of the dust baffle 17 is pointed, and the pointed side faces away from the channel 15. Such a design can make the falling sludge evenly distributed at the bottom of the third cavity 29, avoiding the situation that there is more sludge on one side of the dust baffle 17 and less sludge on the other side. Since the cross-section of the dust baffle 17 is pointed, the dust baffle 17 can be a conical dust baffle or a long strip dust baffle similar to the angle steel. Preferably, the dust baffle 17 is connected to a guiding block 19. Specifically, the guiding block 19 is located at the lower side position of the dust baffle 17. The function of the guiding block 19 is to divert the high-temperature pyrolysis gas coming out of the channel 15. Further, the cross-section of the guiding block 19 is pointed near the channel 15. The guiding block 19 divides the high-temperature pyrolysis gas in the channel 15 into two beams, which enter the third cavity 29 from the left and right sides respectively, so that the high-temperature pyrolysis gas can fully contact with the angle steel layer 23 in the angle steel dust removal part 20.

[0057] In order for the angle steel dust removal part 20 to have better dust filtering ability, refer to the attached Figure 10 , at least two layers of angle steel layers 23 are provided, and different angle steel layers are arranged up and down. Generally, the number of layers of the angle steel layer 23 in the third cavity 29 is 4 - 12 layers, and the specific number of layers is also determined according to the overall height of the third cavity 29 and the distance between the angle steel layers 23. The sludge 27 on the angle steel at the bottom layer directly falls to the bottom of the third cavity 29, and the sludge 27 on the angle steel at non-bottom layers falls from the gaps between the angle steels and slides along the angle steel tops 28 of the angle steels in the lower angle steel layer 23. Part of the sludge 27 will adhere to the angle steel tops 28, and the vast majority of the sludge 27 falls to the bottom of the third cavity 29. After the third cavity 29 works for a period of time, generally, there is more sludge adhering to the angle steel grooves in the lower angle steel layer, and more sludge adhering to the angle steel tops; there is less sludge adhering to the angle steel grooves in the upper angle steel layer, and less sludge adhering to the angle steel tops.

[0058] In order to further improve the filtration efficiency of the angle steel dust removal part 20, the angle steel layer 23 is composed of angle steels 24 arranged at equal intervals. Such a design can make the filtration efficiency in the angle steel layer 23 uniform, and there will be no situation where the filtration effects at different positions are different due to different distances between the internal angle steels 24 in the angle steel layer 23. Generally, the distance between adjacent angle steels in the angle steel layer 23 is 1 - 20 cm, and the specific distance is determined by experimental calculation based on the internal structure of the third wall body 22 and the flow rate of the high-temperature pyrolysis gas in the third wall body 22 during actual production. Further, the angle steels 24 in the upper and lower adjacent angle steel layers 23 are staggered. The staggered arrangement includes two methods, one is angular staggering and the other is positional staggering.

[0059] Angular staggering means that the angle steels 24 in the upper and lower adjacent angle steel layers 23 form a certain angle. For example, in this embodiment, referring to the attached Figures 12 - 14 , as shown in the figure, the angle steels 24 in the upper angle steel layer 23 are at a right angle to the angle steels 24 in the lower angle steel layer 23. The advantage of such a design is that the vast majority of the high-temperature pyrolysis gas passing through the gaps between the angle steels 24 in the lower angle steel layer 23 is blocked by the upper angle steel layer 23 and cannot directly pass through the gaps between the angle steels 24 in the upper angle steel layer 23. Only a very small part of the high-temperature pyrolysis gas that passes through the two angle steel layers without any obstruction. This can greatly improve the filtration efficiency. As provided in this embodiment: the angle steels 24 in the upper angle steel layer 23 are at a right angle to the angle steels 24 in the lower angle steel layer 23, which is generally applicable to the square third cavity 29. In some other third cavities 29, for example, some special regular octagonal third cavities 29, the angle steels 24 in the upper angle steel layer 23 are at a 45-degree angle to the angle steels 24 in the lower angle steel layer 23; for the circular third cavity 29, the angle steels 24 in the upper angle steel layer 23 can be at 30 degrees, 60 degrees, 90 degrees... There is no limit to the angle of staggering of the upper and lower angle steels in the circular third cavity 29. According to the above content, the angles of staggering of the upper and lower angle steels inside the third cavities 29 of different shapes are different and need to be selected according to the shape of the third cavity 29. Therefore, the present invention does not limit the angle of staggering.

[0060] Positional staggering means that the angle steels 24 in the upper and lower adjacent angle steel layers 23 are parallel to each other but not directly opposite, that is, the projection of the angle steels 24 in the upper angle steel layer 23 does not completely coincide with the projection of the angle steels 24 in the lower angle steel layer 23. Specifically, referring to the attached Figure 15 , in the case of positional staggering, all the high-temperature pyrolysis gas passing through the gaps between the angle steels 24 in the lower angle steel layer 23 is blocked by the upper angle steel layer 23 and cannot directly pass through the gaps between the angle steels 24 in the upper angle steel layer 23, which can greatly improve the filtration efficiency.

[0061] Preferably, referring to the attached Figure 16, to improve the safety of the equipment and adapt to modern control processes, the equipment has a double-layer structure, including an outer layer 61 and an inner layer 60. An inert gas is filled between the outer layer 61 and the inner layer 60. Inert gases generally refer to noble gases or some non-reactive gases: Noble gases (rare gases): The elements in Group 18 of the periodic table. Non-reactive gases (inert gases): Gases that do not undergo chemical reactions under certain conditions, including noble gases and may also include carbon dioxide and nitrogen. In this embodiment, nitrogen is preferably filled into the outer layer 61 and the inner layer 60. A first sensor 62 is provided on the equipment. The first sensor 62 is used to detect the temperature, and / or pressure, and / or concentration of combustible gas inside the inner layer 60 of the equipment (the inner layer 60 of the equipment includes inside the cyclone dust removal part 10 or inside the angle iron dust removal part 20). A second sensor 63 is provided on the equipment. The second sensor 63 is used to detect the temperature, and / or pressure, and / or concentration of combustible gas between the inner layer 60 and the outer layer 61 of the equipment. By comparing the various indexes of the first sensor 62 and the second sensor 63, the overall working condition of the equipment and whether there are dangers such as leaks in the equipment can be monitored. Specifically, the first sensor 62 and the second sensor 63 can be temperature sensors, with specific models such as TPR2K5CKTYLC600T1300, etc., or pressure sensors, with specific models such as PT1E1ASG (0 - 1.0MPa), etc., or a combination of multiple of the above sensors. Further, to further improve the degree of automation, achieve unmanned factories, and improve the safety of factories: The first sensor 62 and the second sensor 63 can send signals to the DCS system or the PLC system. The DCS system is the English abbreviation of the Distributed Control System. In the domestic automatic control industry, it is also called the distributed control system. It is a new type of computer control system relative to the centralized control system and has evolved and developed on the basis of the centralized control system. The PLC system, also known as the programmable logic controller, is a digital operation and control electronic system specially designed for application in industrial environments. It uses a programmable memory to store instructions for performing operations such as logical operations, sequential control, timing, counting, and arithmetic operations inside it, and controls various types of mechanical equipment or production processes through digital or analog inputs and outputs.

[0062] The signals of the first sensor 62 and the second sensor 63 are read into the CPU through the corresponding module interfaces for processing; for example, the temperature, pressure, and combustible gas concentration in the feeding cylinder. On the one hand, the data detected by different sensors, such as pressure data, can be used for cross-verification. In particular, the data of the first sensor 62 and the second sensor 63 are used for cross-verification to confirm whether there is an abnormality in the equipment and achieve real-time feedback of the abnormality. For example, it is used to determine whether there is a rupture or leakage in the equipment based on the data of the first sensor 62 and the second sensor 63.

[0063] As described above, it is only the specific implementation manner of the invention, but the protection scope of the invention is not limited thereto. Any change or replacement that can be thought of without creative labor should be covered within the protection scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. An efficient dust removal device, characterized in that, it includes a cyclone dust removal part and an angle steel dust removal part. The angle steel dust removal part is located above the cyclone dust removal part. A dust collection structure is provided at the junction of the cyclone dust removal part and the angle steel dust removal part, and a cleaning device is provided inside the cyclone dust removal part; A first chamber is provided inside the cyclone dust removal part, and a second chamber is provided inside the angle steel dust removal part. The dust collection structure includes a partition plate that separates the first chamber and the second chamber. A channel connecting the first chamber and the second chamber is provided between the cyclone dust removal part and the angle steel dust removal part, and the channel penetrates the partition plate; A rotatable control plate is provided on the partition plate. A first solid part and a first hollow part are provided on the partition plate, and a second solid part and a second hollow part are provided on the control plate; Three first mudguards are arranged in a circumferential array on the outer wall of the channel, and three second mudguards are arranged in a circumferential array on the control plate. The first mudguards and the second mudguards are arranged at intervals; An arc-shaped rack is provided on the control plate, and a motor is also provided in the second chamber. The motor is connected to a gear, and the gear meshes with the rack; The rack is provided between two second mudguards. A notch is provided on the first mudguard between the two second mudguards, and the rack passes through the notch; The cyclone dust removal part includes a first wall body and a second wall body. Both the first wall body and the second wall body are annular walls. The first wall body wraps around the outside of the second wall body. The area formed between the first wall body and the second wall body is the first chamber, and the area wrapped by the second wall body forms the channel. The first chamber is connected to the channel. The cleaning device is integrally annular and surrounds the outside of the first wall body for one week. The cleaning device includes a cleaning chamber. A communication hole is provided on the first wall body, and the communication hole connects the cleaning chamber and the first chamber. Sprayers are installed in the cleaning chamber, and the sprayers face the direction of the first chamber; An active sealing door is provided inside the first wall body at the position of the communication hole. The sealing door is controlled to move by a driving device. The driving device includes a linear guide rail located outside the first wall body and inside the cleaning chamber. A slidable slider is provided on the guide rail. Slot holes are provided on both sides of the first wall body at the position of the driving device. Connecting blocks extending into the slot holes are provided on the slider, and the connecting blocks are connected to the sealing door.

2. An efficient dust removal device according to claim 1, characterized in that, an angle steel layer is provided in the second chamber. There are at least two layers of angle steel layers, and different angle steel layers are arranged one above the other. Among them, the angle steel layer is composed of angle steels arranged at equal intervals. Steel grooves are provided on the angle steels, and the openings of the steel grooves face downwards.

3. An efficient dust removal device according to claim 2, characterized in that, the angle steels in the upper and lower adjacent angle steel layers are arranged staggeredly.

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