Vibrating screen device for decoking

Abstract

The invention relates to a vibrating screen device for decoking. The vibrating screen device comprises a screen box, a gas collecting hood, a vibrating mechanism, a bouncing piece and a blade coating device, the upper end face of the screen box is sealed, the gas collecting hood and the vibrating mechanism are both arranged on the upper end face of the screen box, and the gas collecting hood is connected with an external exhaust system. A feeding hole is formed in one side, far away from the gas collecting hood, of the upper end surface of the screen box; the bouncing piece is arranged between a first sieve plate and a second sieve plate which are parallel in the sieve box, and the top end of the bouncing piece is fixed to the bottom end face of the first sieve plate. The blade coating device is arranged in the screen box and located on the upper end face of the first screen plate so as to move back and forth in the length direction of the first screen plate to scrape off materials adhering to the first screen plate. The vibrating screen has the advantages that vibration of the screen box enables the bouncing piece to bounce between the bottom end face of the first screen plate and the top end face of the second screen plate, material particles in screen holes of the first screen plate and screen holes of the second screen plate are vibrated off, screen mesh blockage is avoided, and the screening efficiency is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of petroleum refining environmental protection equipment, in particular to a vibrating screen device for decoking. BACKGROUND

[0002] The cleaning method of the filter screen in the traditional vibrating screen has three core problems in the closed decoking scene: low cleaning efficiency (only 50-60%), high maintenance cost (single downtime loss exceeds 20,000 yuan), and prominent safety hazards (VOCs leakage risk). Therefore, it is urgent to develop a cleaning technology suitable for closed systems; At the same time, the working environment of the vibrating screen is complex and diverse. The upper limit of the conventional vibrating screen working environment temperature is 40℃, and exceeding this limit can easily lead to equipment aging and reduced screening efficiency. When the relative humidity of the environment exceeds 90% (at 20℃), the corrosion resistance of metal parts increases dramatically, and the screen mesh is more likely to be wrapped and hardened by viscous materials with a moisture content of >8% (such as tar and wet coal powder). After the viscous particles accumulate in the screen hole, the traditional cleaning ball bounce will be inhibited, and the ultrasonic cleaning effect will also decrease with increasing humidity.

[0003] In summary, the traditional open screening process is prone to dust pollution from coke powder, and the agglomeration of petroleum particles due to static electricity can exacerbate the risk of screen clogging. SUMMARY

[0004] The present application provides a vibrating screen device for decoking to solve the technical problems in the prior art.

[0005] The technical solution of the present application to solve the above technical problems is as follows: a vibrating screen device for decoking, comprising a screen box, a gas collecting hood, a vibrating mechanism, a bouncing piece, and a scraping device. The upper end face of the screen box is sealed, and the gas collecting hood and the vibrating mechanism are arranged on the upper end face of the screen box. The gas collecting hood is connected with an external exhaust system to collect dust and waste gas in the screen box. A feeding port is arranged on the side of the upper end face of the screen box away from the gas collecting hood. The bouncing piece is arranged between the parallel first and second screen plates in the screen box, and the top end of the bouncing piece is fixed to the bottom end face of the first screen plate. The scraping device is arranged in the screen box and located on the upper end face of the first screen plate to move back and forth along the length direction of the first screen plate to scrape off the material adhered to the first screen plate.

[0006] As a further technical solution, a water collecting groove is arranged on the lower end face of the screen box. A cleaning device is mounted on the scraping device to spray water back and forth along the length direction of the first screen plate and then collect and discharge through the water collecting groove.

[0007] As a further technical solution, the bouncing member comprises a traction member and a bouncing body. One end of the traction member is fixed to the bottom end surface of the first screen plate, and the other end is fixed to the bouncing body. The end of the bouncing body away from the traction member is in point contact with the second screen plate.

[0008] As a further technical solution, the scraping device comprises a first driving member, a driving shaft, a driven shaft, a driving sprocket, a driven sprocket, a chain, a support frame, and a scraper. The first driving member is arranged on one side outside the screen box, and the driving shaft, the driven shaft, the driving sprocket, the driven sprocket, the chain, the support frame, and the scraper are arranged inside the screen box. The output shaft of the first driving member is connected to the driving shaft through a bearing, the driving shaft and the driven shaft are arranged in parallel along the length direction of the screen box, and one driving sprocket is arranged on each side of the length direction of the driving shaft, and one driven sprocket is arranged on each side of the length direction of the driven shaft, so that the driving sprocket and the driven sprocket on the same side are connected by a chain. The two ends of the support frame are respectively fixed to the side walls of the corresponding side of the chain, and the scraper is installed on one side of the width direction of the support frame to scrape the material accumulated on the first screen plate.

[0009] As a further technical solution, the cleaning device is installed on the side of the support frame away from the scraper.

[0010] As a further technical solution, the cleaning device comprises a cross pipe, a nozzle, and a water inlet pipe, and the cross pipe is installed on the side of the support frame away from the scraper. The nozzles are uniformly distributed along the length direction of the cross pipe and are connected, and the water outlets of the nozzles face the first screen plate. The water inlet pipe is connected to the middle of the cross pipe, and the water inlet end of the water inlet pipe extends out of the side wall of the screen box.

[0011] As a further technical solution, the chain guide strips are installed on the inner side wall of the screen box through connecting members. One side of the screen box is provided with two chain guide strips arranged in parallel, and the chain guide strips are adapted to the guide grooves on the chain.

[0012] As a further technical solution, the screen box comprises a front side plate, a rear side plate, a left side plate, and an upper side plate, and is enclosed in a semi-sealed structure by the front side plate, the rear side plate, the left side plate, the upper side plate, and the water collecting tank.

[0013] As a further technical solution, a humidity sensor is arranged in the screen box.

[0014] As a further technical solution, the bouncing body is a bouncing ball.

[0015] The beneficial effects of the present application are: 1. The structure of the bouncing member in the screen box can utilize the vibration of the screen box to make the bouncing member bounce between the bottom end face of the first screen plate and the top end face of the second screen plate, so as to shake off the material particles in the screen holes of the first screen plate and the second screen plate, avoid the clogging of the screen, and ensure the screening efficiency; The scraping device is arranged in the screen box. On the one hand, manual scraping is avoided, the work efficiency is improved, the contact of the operator is reduced, and the safety coefficient is improved. On the other hand, the material particles accumulated on the first screen can be scraped, dead angles are avoided, and manual intervention is not needed. In addition, the upper end face of the screen box is sealed, and a gas collecting hood is arranged, so that the screen box forms a semi-sealed structure. In the working process, the generated dust, waste gas and the like are sucked away in real time under negative pressure, a clean working environment is provided, the safety coefficient of operation is improved, and the environment is more friendly. 2. A water collecting tank is arranged at the lower end of the screen box, and a cleaning device is arranged on the scraping device. When the humidity of the material in the screen box is too high, the screen box stops feeding, the cleaning device is opened, high-pressure water is used to clean the first screen and the second screen, the scraper works at the same time to increase the cleaning intensity, and the dirt after cleaning is collected by the water collecting tank and discharged to the external drainage system, thereby improving the cleaning efficiency and reducing the risk of manual cleaning. This method can remove the tar, sticky particles and hard impurities clogging the screen holes without stopping the machine, improve the production efficiency (i.e. without interrupting continuous operation), and does not require the operator to contact high-temperature and toxic coking gas in a closed space. 3. The specific structural design of the scraping device can realize the dead angle-free cleaning of the first screen plate. The bottom end face of the scraper has a gap with the upper end face of the first screen plate, so as to avoid damaging the first screen plate. Combined with the cleaning device, complete removal is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 、 Figure 2 are respectively three-dimensional structure schematic diagrams of the vibration screen device for decoking of the present application from different perspectives; Figure 3 、 Figure 4 are respectively three-dimensional structure schematic diagrams of the vibration screen device for decoking of the present application from different perspectives after removing part of the structure, wherein the front side plate, the rear side plate, the left side plate, the upper side plate and the structure above the upper side plate of the screen box are removed; Figure 5 is a three-dimensional structure schematic diagram of the vibration screen device for decoking of the present application after removing part of the structure and retaining the first screen plate, the second screen plate, the cleaning device and the scraping device.

[0017] In the drawings, the components represented by each reference numeral are listed as follows: Screen box 1, feed inlet 11, first screen plate 12, second screen plate 13, water collecting tank 14, water outlet 141, front side plate 15, rear side plate 16, left side plate 17, upper side plate 18, side cross plate 19, supporting table 191; Gas collecting cover 2, vibrating mechanism 3; Bouncing member 4, traction member 41, bouncing body 42; Scraper coating device 5, first driving member 51, driving shaft 52, driven shaft 53, driving sprocket 54, driven sprocket 55, chain 56, support frame 57, scraper 58; Cleaning device 6, cross pipe 61, nozzle 62, water inlet pipe 63; Bearing 7, connecting member 8, chain guide bar 81; Base 9, spring 91, stand column 92. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0019] In the description of the present application, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0020] In the description of the present application, the term "for example" is used to indicate "as an example, illustration or explanation". Any embodiment described as "for example" in the present application is not necessarily interpreted as more preferred or more advantageous than other embodiments. The following description is given in order to enable any person skilled in the art to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that those skilled in the art can recognize that the present application can be implemented without using these specific details. In other examples, well-known structures and processes will not be described in detail to avoid unnecessary details making the description of the present application obscure. Therefore, the present application is not intended to be limited to the shown embodiments, but is consistent with the broadest scope in accordance with the principles and characteristics disclosed in the present application.

[0021] Embodiment 1 Referring toFigures 1-4 The embodiment provides a vibrating screen device for decoking, which comprises a screen box 1, a gas collecting hood 2, a vibrating mechanism 3, a bouncing piece 4 and a scraping device 5. The upper end surface of the screen box 1 is sealed, and the gas collecting hood 2 and the vibrating mechanism 3 are arranged on the upper end surface of the screen box 1. The gas collecting hood 2 is connected with an external exhaust system to collect dust and waste gas in the screen box 1. A feeding port 11 is arranged on the upper end surface of the screen box 1 away from the gas collecting hood 2. The bouncing piece 4 is arranged between parallel first and second screen plates 12 and 13 in the screen box 1, and the top end of the bouncing piece 4 is fixed to the bottom end surface of the first screen plate 12. The scraping device 5 is arranged in the screen box 1 and located on the upper end surface of the first screen plate 12 to move back and forth along the length direction of the first screen plate 12 to scrape off the material adhered to the first screen plate 12.

[0022] For example, the device can be specifically applied to a closed decoking system of a delayed coking device to solve the problems of filter screen blockage and pollution in the decoking process, guarantee efficient operation of the filtering system and reduce pollutant emission.

[0023] For example, the vibrating mechanism 3 is used to convert the rotary motion of a motor into the periodic vibration (such as linear vibration, circular vibration or elliptical vibration) required by the screen box 1 to provide power for material screening. For example, the vibrating mechanism 3 comprises a power source, a transmission mechanism, a vibration excitation element and a support. The power source provides basic rotary power, and the transmission mechanism is connected with the vibration excitation element. The support can fix the vibration excitation element and the power source and uniformly transmit the vibration excitation force to the screen box 1 (to avoid deformation of the screen box 1 caused by excessive local stress). The support is usually welded or bolted with the screen box 1 and is made of high-strength steel.

[0024] For example, the bouncing piece 4 bounces under the vibration of the screen box 1 to bounce on the two surfaces of the first and second screen plates 12 and 13, so that the particles on the screen holes of the first and second screen plates 12 and 13 are shaken off to avoid screen hole blockage and improve screening efficiency and work efficiency.

[0025] In addition, when the first and second screen plates 12 and 13 need to be cleaned, the scraping device 5 can improve the cleaning efficiency without dead angles, will not damage the screen, and does not need manual cleaning, thereby improving work efficiency and reducing risks.

[0026] For example, the external exhaust system is a non-negative pressure exhaust system, so that the dust escape rate is controlled to be below 0.5% to solve the problem of coke powder diffusion.

[0027] For example, the first screen plate 12, the screen mesh on the second screen plate 13 is treated with tungsten carbide layer, the wear index reaches 3.8 times of traditional material, and is matched with screw connection, so that the replacement time is less than or equal to 30 minutes, and the maintenance period is extended to 8000 hours.

[0028] Referring to Figure 1 、 Figure 2 In the specific implementation process, the lower end surface of the screen box 1 is provided with a water collecting groove 14; and the scraping device 5 is provided with a cleaning device 6, which sprays water back and forth along the length direction of the first screen plate 12 and collects the water through the water collecting groove 14 and then discharges the water.

[0029] For example, the screen box 1 is provided with a humidity sensor (not shown in the figure), when the material humidity in the screen box 1 is detected to be too high, the feeding is stopped, and the scraping device 5 and the cleaning device 6 are started to clean the screen mesh. For example, the humidity sensor is arranged on the low side of the screen box 1.

[0030] For example, the screen box 1 is a hexahedral structure, which includes a front side plate 15, a rear side plate 16, a left side plate 17 and an upper side plate 18, and is semi-sealed by the front side plate 15, the rear side plate 16, the left side plate 17, the upper side plate 18 and the water collecting groove 14, that is, the right side of the screen box 1 is open, so that the situation in the screen box 1 can be observed. The gas collecting cover 2 is arranged near the screen box 1, and the dust and waste gas at the position can be sucked away by using negative pressure, so that the dust and waste gas generated in the working process of the vibrating screen device in the embodiment is avoided from escaping and affecting the working environment, and the safety of the working environment is improved.

[0031] It should be noted that the water collecting groove 14 is of an inclined structure, so that the water flow is quickly gathered at the water outlet 141 at the bottom. The upper side plate 18 is provided with the feeding port 11.

[0032] For example, the cleaning device 6 is used for spraying high-pressure water on the first screen plate 12, so as to flush the first screen plate 12 and avoid the screen mesh from being blocked.

[0033] Referring to Figure 3 、 Figure 4 In the specific implementation process, the bouncing member 4 includes a traction member 41 and a bouncing body 42; one end of the traction member 41 is fixed to the bottom end surface of the first screen plate 12, and the other end is fixed to the bouncing body 42; and the end of the bouncing body 42, which is away from the traction member 41, is in point contact with the second screen plate 13, so that the bouncing body 42 bounces under the vibration of the first screen plate 12, that is, the bouncing body 42 collides with the first screen plate 12 and the second screen plate 13, so as to generate impact force on the first screen plate 12 and the second screen plate 13, and the impact force makes the screen mesh vibrate at a high frequency, so that the particles close to the separation point in the screen hole are shaken out, and the anti-blocking function of the screen mesh is realized.

[0034] For example, the traction member 41 can be a traction rope, and the bouncing body 42 is a bouncing ball that bounces within a corresponding range during bouncing. It should be noted that in order to improve the anti-blocking effect, a plurality of groups of bouncing members 4 are arranged along the length direction of the bottom end face of the first screen plate 12, and the number of bouncing members 4 in each group of bouncing members 4 is arranged to be several, and the bouncing members 4 are uniformly distributed along the width direction of the first screen plate 12.

[0035] Referring to Figures 3-5 In the specific implementation process, the scraping device 5 includes a first driving member 51, a driving shaft 52, a driven shaft 53, a driving sprocket 54, a driven sprocket 55, a chain 56, a support frame 57, and a scraper 58. The first driving member 51 is arranged on one side of the screen box 1. The driving shaft 52, the driven shaft 53, the driving sprocket 54, the driven sprocket 55, the chain 56, the support frame 57, and the scraper 58 are all arranged in the screen box 1. The output shaft of the first driving member 51 is connected to the driving shaft 52 through a bearing 7. The driving shaft 52 and the driven shaft 53 are arranged in parallel along the length direction of the screen box 1. One driving sprocket 54 is arranged on each side of the driving shaft 52 along the length direction. One driven sprocket 55 is arranged on each side of the driven shaft 53 along the length direction. The driving sprocket 54 and the driven sprocket 55 on the same side are connected by the chain 56. The two ends of the support frame 57 are fixed to the side walls of the corresponding chain 56. The scraper 58 is installed on one side of the support frame 57 along the width direction to scrape the materials accumulated on the first screen plate 12.

[0036] It should be noted that the first driving member 51 can be a driving motor. The support frame 57 moves along the length direction of the first screen plate 12 under the movement of the chain 56, so that the scraper 58 scrapes the materials and flushing water accumulated on the first screen plate 12.

[0037] It should be noted that the length of the scraper 58 is less than the length of the support frame 57, but the first screen plate 12 can be scraped without dead angle.

[0038] In this embodiment, the first driving member 51 is started to drive the driving shaft 52 to rotate, and then drive the driving sprocket 54 to rotate. Under the action of the chain 56, the driven sprocket 55 and the driven shaft 53 also rotate. The forward and reverse rotation of the first driving member 51 realizes the back-and-forth movement of the scraper 58 along the length direction of the first screen plate 12.

[0039] It should be noted that the two ends of the driving shaft 52 and the driven shaft 53 along the length direction are both provided with bearings 7, and the bearings 7 are exposed outside the screen box 1 and fixed to the side cross plates 19 outside the screen box 1.

[0040] Further, the cleaning device 6 is installed on the support frame 57 away from the scraper 58, and it is to be noted that the length of the cleaning device 6 is less than the length of the support frame 57. For example, the cleaning device 6 comprises a horizontal pipe 61, a nozzle 62 and a water inlet pipe 63, the horizontal pipe 61 is installed on the support frame 57 away from the scraper 58, the nozzles 62 are uniformly distributed along the length direction of the horizontal pipe 61 and the water outlets of the nozzles 62 are directed to the first screen plate 12, the water inlet pipe 63 is connected to the middle of the horizontal pipe 61 and the water inlet end of the water inlet pipe 63 extends out of the side wall of the screen box 1, so that the high-pressure water enters the horizontal pipe 61 through the water inlet pipe 63 and is sprayed to the first screen plate 12 through the nozzles 62, and since the horizontal pipe 61 moves along the length direction of the first screen plate 12 under the movement of the support frame 57, the cleaning of the first screen plate 12 is realized without dead angle and the cleaning efficiency is improved.

[0041] For example, the spraying direction of the nozzle 62 is perpendicular to the first screen plate 12 to improve the cleaning effect.

[0042] Referring to Figures 3-5 In the specific implementation process, the chain guide bars 81 are installed on the inner side wall of the screen box 1 through the connecting pieces 8, one side of the screen box 1 is provided with two chain guide bars 81 which are arranged in parallel and are matched with the guide grooves on the chains 56, that is, two chain guide bars 81 are arranged on each of the two chains 56 on the drive shaft 52 to improve the accuracy of the movement direction of the chains 56.

[0043] It is to be noted that the vibrating screen device of the embodiment further comprises a base 9 and springs 91, the column 92 of the base 9 is connected to the supporting table 191 on the screen box 1 through the springs 91, that is, the screen box 1 is installed in suspension and the vibration of the screen box 1 under the driving of the vibrating mechanism 3 is not affected.

[0044] For example, the column 92 on the base 9 is provided with at least four, for example, four, and each of the front side plate 15 and the rear side plate 16 is connected to two columns 92, and the columns 92 on the front side plate 15 and the rear side plate 16 are arranged symmetrically along the screen box 1.

[0045] For example, the longitudinal section of the connecting piece 8 is configured as an L shape, the vertical edge of the L shape is fixedly connected to the outer surface of the chain guide bar 81, and the horizontal edge of the L shape is fixedly connected to the inner side wall of the screen box 1 to fix the chain guide bar 81.

[0046] The embodiment is implemented as follows: When the feedback material humidity is too high, the feeding port 11 stops feeding, at this time, the scraping device 5, the cleaning device 6 are started, so that the scraper 58, the nozzle 62 move along the length direction of the first screen plate 12, to clean the screen while scraping and high pressure water spraying; When the vibrating screen device needs to vibrate to classify the material, the gas collecting hood 2 is connected with the external exhaust system to collect the dust, waste gas and the like generated in the screen box 1 in real time, reduce the influence on the environment, and improve the environmental safety factor; at the same time, the bounce piece 4 bounces on the first screen plate 12 and the second screen plate 13, so that the screen vibrates at high frequency, thereby realizing the anti-blocking of the screen.

[0047] The embodiment combines the bounce piece to realize the anti-blocking function of the screen, and the cleaning device and the scraping device are arranged to effectively clean the screen box, which is more efficient than the traditional manual cleaning, and improves the safety factor.

[0048] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0049] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all the preferred embodiments and all the changes and modifications falling within the scope of the present application.

[0050] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A vibrating screen device for decoking, characterized in that, Includes a screen box (1), a gas collection hood (2), a vibration mechanism (3), a bouncing component (4), and a scraping device (5); The upper end face of the sieve box (1) is sealed, and the gas collection hood (2) and the vibration mechanism (3) are both located on the upper end face of the sieve box (1). The gas collection hood (2) is connected to the external exhaust system to collect dust and exhaust gas in the sieve box (1). The screen box (1) has a feed inlet (11) on the side away from the gas collecting hood (2) on the upper end surface. The bouncing element (4) is disposed between the first sieve plate (12) and the second sieve plate (13) in parallel inside the sieve box (1), and the top end of the bouncing element (4) is fixed to the bottom end face of the first sieve plate (12). The scraping device (5) is located inside the sieve box (1) and on the upper end face of the first sieve plate (12). It moves back and forth along the length of the first sieve plate (12) to scrape off the material adhering to the first sieve plate (12).

2. The vibrating screen device for decoking according to claim 1, characterized in that, The lower end face of the sieve box (1) is provided with a water collection trough (14). The scraping device (5) is equipped with a cleaning device (6) to spray water back and forth along the length of the first sieve plate (12) and collect it through the water collection tank (14) before discharging it.

3. The vibrating screen device for decoking according to claim 1, characterized in that, The bouncing component (4) includes a traction component (41) and a bouncing body (42). One end of the traction member (41) is fixed to the bottom end face of the first sieve plate (12), and the other end is fixed to the bouncing body (42). The end of the bouncing body (42) facing away from the traction member (41) makes point contact with the second sieve plate (13).

4. The vibrating screen device for decoking according to claim 2, characterized in that, The scraping device (5) includes a first driving member (51), a driving shaft (52), a driven shaft (53), a driving sprocket (54), a driven sprocket (55), a chain (56), a support frame (57), and a scraper (58); The first driving member (51) is located on one side outside the screen box (1), and the driving shaft (52), the driven shaft (53), the driving sprocket (54), the driven sprocket (55), the chain (56), the support frame (57), and the scraper (58) are all located inside the screen box (1); The output shaft of the first driving member (51) is connected to the driving shaft (52) through a bearing (7). The driving shaft (52) and the driven shaft (53) are arranged parallel to each other along the length direction of the screen box (1). A driving sprocket (54) is provided on both sides of the driving shaft (52) along the length direction, and a driven sprocket (55) is provided on both sides of the driven shaft (53) along the length direction, so that the driving sprocket (54) and the driven sprocket (55) on the same side are connected by a chain (56). The two ends of the support frame (57) are respectively fixed to the side wall of the chain (56) on the corresponding side. The scraper (58) is installed on one side of the support frame (57) in the width direction to scrape the material accumulated on the first screen plate (12).

5. A vibrating screen device for decoking according to claim 4, characterized in that, The cleaning device (6) is installed on the support frame (57) on the side opposite to the scraper (58).

6. A vibrating screen device for decoking according to claim 5, characterized in that, The cleaning device (6) includes a horizontal pipe (61), a nozzle (62), and a water inlet pipe (63). The horizontal pipe (61) is installed on the support frame (57) on the side away from the scraper (58). The nozzles (62) are evenly distributed along the length of the horizontal tube (61), and the outlet of the nozzles (62) faces the first screen plate (12). The horizontal pipe (61) is connected to the water inlet pipe (63) in the middle, and the water inlet end of the water inlet pipe (63) extends out of the side wall of the screen box (1).

7. A vibrating screen device for decoking according to claim 4, characterized in that, A chain guide bar (81) is installed on the inner wall of the sieve box (1) via a connector (8). The sieve box (1) is provided with two chain guide bars (81) arranged in parallel on one side, and adapted to the guide groove on the chain (56).

8. A vibrating screen device for decoking according to claim 2, characterized in that, The sieve box (1) includes a front side plate (15), a rear side plate (16), a left side plate (17), and an upper side plate (18), which are enclosed by the front side plate (15), the rear side plate (16), the left side plate (17), the upper side plate (18), and the water collection tank (14) to form a semi-sealed structure.

9. A vibrating screen device for decoking according to any one of claims 1-8, characterized in that, The sieve box (1) is equipped with a humidity sensor.

10. A vibrating screen device for decoking according to claim 3, characterized in that, The bouncing body (42) is a bouncing ball.

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