A coke screening floor vibration screen anti-blocking device

Abstract

The utility model relates to the technical field of semi coke screening tower vibration screen, a semi coke screening tower vibration screen prevents blocking device, including the vibration machine main part and install in its inside screening frame, still include: install in the fixed shell of vibration machine main part frame surface, the surface of fixed shell is equipped with the auxiliary mechanism that carries out reverse force to screening frame, set up in the connecting pipe of auxiliary mechanism one side, the surface fixed connection of connecting pipe is equipped with pressure -relief valve, the utility model discloses the cooperation of auxiliary mechanism and screening frame, can under the reaction force of air pressure, auxiliary screening frame carries out vibration, to this makes the vibration of screening frame effectively promote, and under the cooperation of auxiliary mechanism and first telescopic pipe and reset mechanism, make the scraping mechanism reciprocating to the semi coke that blocks in the inside of screening frame carries out cleaning, further promoted the screening efficiency of vibration screen, solved the existing vibration screen when using, easy to appear the situation of blocking, influence screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen technology for semi-coke and coke tower, specifically an anti-clogging device for vibrating screens for semi-coke and coke tower. Background Technology

[0002] The semi-coke screening tower vibrating screen is a specialized vibrating screening device installed in a screening tower on the semi-coke (semi-coke) production line. It is used to classify the cooled semi-coke by particle size. The semi-coke screening tower vibrating screen is a key process equipment in the semi-coke production process. It is fixedly installed in the screening tower and uses the reciprocating vibration generated by its box to mechanically screen the cooled mixed particle size semi-coke, so that it can be efficiently classified according to the preset particle size specifications (such as large particles, medium particles, small particles, and coke fines).

[0003] When some existing vibrating screens are in use, the screening rack on its surface is prone to trapping some semi-coke whose size matches the mesh size of the screening rack. The semi-coke clogging the mesh affects the screening area of ​​the screening rack, resulting in a reduction in the screening efficiency of the vibrating screen. Therefore, an anti-clogging device is needed to clean the semi-coke on the surface of the screening rack. Meanwhile, some existing vibrating screens rely solely on the vibration mechanism itself to vibrate the screening frame. This vibration is easily affected by the weight of the semi-coke, which affects the vibration frequency of the screening frame and reduces screening efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an anti-clogging device for a semi-coke screen and coke oven vibrating screen, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-clogging device for a vibrating screen in a coke oven, comprising a vibrating machine body and a screening frame installed inside it, and further comprising: A fixed shell is installed on the surface of the main frame of the vibrating machine, and an auxiliary mechanism for applying reverse force to the screening frame is installed on the surface of the fixed shell. A connecting pipe is provided on one side of the auxiliary mechanism. A pressure relief valve is fixedly connected to the surface of the connecting pipe. A first telescopic pipe is installed in the inner cavity of the fixed shell. A tension spring is fixedly connected to one end of the inner cavity of the first telescopic pipe. A scraping mechanism is installed at one end of the first telescopic tube to clean the screening frame, and a reset mechanism for moving the scraping mechanism is installed in the inner cavity of the fixed shell.

[0006] Preferably, the auxiliary mechanism includes a connecting plate fixed to the surface of the fixed shell and several fixed cylinders fixed to its top. A piston rod is movably connected to the inner cavity of the fixed cylinder, and a one-way air intake valve is fixedly connected to one side of the fixed cylinder.

[0007] Preferably, the scraping mechanism includes a movable block fixed to one end of the first telescopic tube and a support plate fixed to one side thereon, with a scraping plate fixedly connected to the top of the support plate.

[0008] Preferably, the reset mechanism includes a second telescopic tube fixed to the inner cavity of the fixed shell, and a one-way valve is installed on the surface of the second telescopic tube and one end of the first telescopic tube. A movable rod is fixedly connected to one end of the second telescopic tube and the surface of the first telescopic tube.

[0009] Preferably, the lower surface of the piston rod is slidably connected to the inner wall of the fixed cylinder, and the lower surface of the piston rod is made of rubber.

[0010] Preferably, the scraper is made of rubber and has an inclined structure design on both sides.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, through the cooperation of an auxiliary mechanism and a screening frame, assists the screening frame in vibrating under the reaction force of air pressure, thereby effectively improving the vibration and blocking of the screening frame. Furthermore, with the cooperation of the auxiliary mechanism, the first telescopic tube, and the reset mechanism, the scraping mechanism reciprocates to clean the semi-coke blocking inside the screening frame, thereby reducing the degree of clogging and further improving the screening efficiency of the vibrating screen. This solves the problem that existing vibrating screens are prone to clogging during use, which affects the screening efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial three-dimensional structural diagram of the present invention; Figure 3 This is a partial three-dimensional structural schematic diagram from another perspective of the present invention; Figure 4 This is a partial three-dimensional cross-sectional structural diagram of the present invention; Figure 5 This is a partial three-dimensional cross-sectional structural diagram of the present invention.

[0013] In the diagram: 1. Vibrating machine body; 2. Screening frame; 3. Fixed shell; 4. Auxiliary mechanism; 41. Connecting plate; 42. Fixed cylinder; 43. Piston rod; 44. One-way air inlet valve; 5. First telescopic tube; 6. Tension spring; 7. Connecting tube; 8. Reset mechanism; 81. Second telescopic tube; 82. One-way valve; 83. Movable rod; 9. Scraping mechanism; 91. Moving block; 92. Support plate; 93. Scraping plate; 10. Pressure relief valve. Detailed Implementation

[0014] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0015] Please see Figure 1-5 As shown, a clog prevention device for a vibrating screen for semi-coke coke screening includes a vibrating machine body 1, which is composed of a frame and a vibrating motor. A screening frame 2 is installed inside the vibrating machine body 1. The screening frame 2 is installed on the surface of the frame and works in conjunction with the vibrating motor and other structures. This cooperation enables the screening frame 2 to vibrate, thereby achieving the effect of quickly screening semi-coke.

[0016] A fixed shell 3 is installed on the surface of the frame of the vibrating machine body 1. An auxiliary mechanism 4 is installed on the surface of the fixed shell 3. The auxiliary mechanism 4 can assist in vibrating the screening frame 2, thereby increasing the vibration amplitude of the screening frame 2 and thus improving the screening effect of semi-coke.

[0017] The auxiliary mechanism 4 includes a connecting plate 41 fixed to the surface of the fixed shell 3. Three fixed cylinders 42 are fixedly connected to the top of the connecting plate 41 and are evenly distributed on the top of the connecting plate 41. A piston rod 43 is movably connected to the inner cavity of the fixed cylinder 42. The other end of the piston rod 43 is fixedly connected to the bottom of the screening frame 2. Under this action, the piston rod 43 can move inside the fixed cylinder 42 when the screening frame 2 vibrates. A one-way air inlet valve 44 is fixedly connected to one side of the fixed cylinder 42. The four valves can only allow air to enter the interior of the connecting plate 41. When under pressure, the air will not be discharged from the one-way air intake valve 44. This combination allows the air inside the fixed cylinder 42 to push the piston rod 43 in the opposite direction after being squeezed, thereby providing power for the vibration of the screening frame 2 again, thereby increasing the vibration frequency of the screening frame 2 and assisting the screening frame 2 in screening semi-coke. In addition, the surface of the one-way air intake valve 44 has a filter cover for blocking dust, which can further reduce the amount of dust entering the interior of the fixed cylinder 42.

[0018] It should be noted that the lower surface of the piston rod 43 is slidably connected to the inner wall of the fixed cylinder 42, and the lower surface of the piston rod 43 is made of rubber. Under this action, it can better push the air, and under the action of the material, it can deform to absorb the irregular vibration of the fixed cylinder 42, thereby avoiding the situation where the piston rod 43 cannot move inside the fixed cylinder 42.

[0019] A connecting pipe 7 is provided on one side of the auxiliary mechanism 4. One end of the connecting pipe 7 is connected to the inner cavity of the fixed cylinder 42. The connecting pipe 7 has four air outlets, so that the air in the inner cavity of the fixed cylinder 42 can be discharged from the four air outlets. A pressure relief valve 10 is fixedly connected to the surface of the connecting pipe 7. Under this action, air can be discharged from two air outlets of the connecting pipe 7 when the pressure is normal, and when the pressure is high, the pressure relief valve 10 opens, and air is discharged from all four air outlets of the connecting pipe 7.

[0020] It should be noted that a one-way air valve is installed at the connection point between the connecting pipe 7 and the second telescopic pipe 81, so that air cannot be discharged from the inside of the connecting pipe 7 into the inside of the fixed cylinder 42 in reverse.

[0021] The inner cavity of the fixed shell 3 is equipped with a first telescopic tube 5. One end of the first telescopic tube 5 is fixedly connected to the inner wall of the fixed shell 3. The air outlet of the connecting pipe 7 on one side is connected to the first telescopic tube 5. Under this action, after the connecting pipe 7 discharges air into the interior of the first telescopic tube 5, the first telescopic tube 5 can be extended under the action of its own material, thereby changing the position of the other end of the first telescopic tube 5, thus facilitating subsequent use.

[0022] A tension spring 6 is fixedly connected to one end of the inner cavity of the first telescopic tube 5, and the other end of the tension spring 6 is fixedly connected to the other end of the inner cavity of the first telescopic tube 5. Under this action, when the first telescopic tube 5 is opened, the tension spring 6 is also stretched. When the inside of the first telescopic tube 5 is not opened, one end of the first telescopic tube 5 can be reset by the action of the tension spring 6.

[0023] A scraping mechanism 9 is installed at one end of the first telescopic tube 5. With the cooperation of the scraping mechanism 9, the scraping mechanism 9 can scrape the bottom of the screening frame 2 when the first telescopic tube 5 moves, thereby pushing the semi-coke stuck on the surface of the screening frame 2 away from the interior of the screening frame 2, thereby reducing the possibility of clogging in the screening frame 2.

[0024] The scraping mechanism 9 includes a movable block 91 fixed to one end of the first telescopic tube 5. The surface of the movable block 91 is slidably connected to the inner wall of the fixed shell 3. A support plate 92 is fixedly connected to one side of the movable block 91. A scraping plate 93 is fixedly connected to the top of the support plate 92. The scraping plate 93 works in conjunction with the screening frame 2. The scraping plate 93 scrapes the screening frame 2 by the cooperation of the movable block 91 and the support plate 92, thereby reducing the clogging of the screening frame 2.

[0025] It should be noted that the scraper 93 is made of rubber and has an inclined structure design on both sides. This design allows the screen frame 2 to continue cleaning even when vibrating, preventing the vibration force of the screen frame 2 from being directly transmitted to the surface of the support plate 92 and affecting its movement.

[0026] The inner cavity of the fixed shell 3 is equipped with a reset mechanism 8. When the first telescopic tube 5 moves to its farthest point, the reset mechanism 8 can expel the air inside the first telescopic tube 5, thereby enabling the scraping mechanism 9 to reset. After the scraping mechanism 9 is reset, it can move again with the cooperation of the first telescopic tube 5, thereby cleaning the screening frame 2 in a reciprocating manner.

[0027] The reset mechanism 8 includes a second telescopic tube 81 fixed to the inner cavity of the fixed housing 3. One-way valves 82 are installed on the surface of the second telescopic tube 81 and one end of the first telescopic tube 5. Movable rods 83 are fixedly connected to one end of the second telescopic tube 81 and the surface of the first telescopic tube 5. The one-way valves 82 on the surface of the second telescopic tube 81 cooperate with the movable rods 83 on the surface of the first telescopic tube 5, and vice versa. The second telescopic tube 81 is connected to one end of the connecting pipe 7. Under this action... When the auxiliary mechanism 4 injects air into the first telescopic tube 5 through the connecting pipe 7, the scraping mechanism 9 can move. When the first telescopic tube 5 can no longer expand, the pressure relief valve 10 will open under the action of air pressure to inject air into the interior of the second telescopic tube 81. The expansion of the second telescopic tube 81 causes the movable rod 83 on its surface to move. Under the action of the movable rod 83, the one-way valve 82 on the surface of the first telescopic tube 5 is opened, so that the air inside the first telescopic tube 5 is discharged from the one-way valve 82. With the cooperation of the tension spring 6, the scraping mechanism 9 is driven to reset.

[0028] It should be noted that the air output of the one-way valve 82 located on the surface of the first telescopic tube 5 is much greater than the air injection volume of the connecting pipe 7 into the first telescopic tube 5, so that the scraping mechanism 9 can be successfully reset.

[0029] After the first telescopic tube 5 is reset, the movable rod 83 on its surface will open the one-way valve 82 on the surface of the second telescopic tube 81, thereby resetting the movable rod 83 and preventing the air inside the first telescopic tube 5 from being discharged. This allows the first telescopic tube 5 to continue to be inflated, achieving the effect of reciprocating movement of the scraping mechanism 9.

[0030] It should be noted that the second telescopic tube 81 is equipped with a spring, the same as the tension spring 6, for resetting the second telescopic tube 81.

[0031] It should be noted that both the second telescopic tube 81 and the first telescopic tube 5 are airtight telescopic tubes, and their surfaces slide against the inner wall of the fixed shell 3, thereby ensuring the direction of expansion of the first telescopic tube 5 and the second telescopic tube 81.

[0032] It is worth noting that the technical features such as the vibrating machine body 1 and the screening frame 2 proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.

[0033] Working principle: First, start the vibrating machine body 1, then pour the semi-coke into the surface of the screening frame 2 through the feeding port. The semi-coke is screened by the vibration of the screening frame 2. During the screening process, the vibration of the screening frame 2 will drive the piston rod 43 to move inside the fixed cylinder 42. Air will enter the inside of the fixed cylinder 42 through the one-way air inlet valve 44 under the action of negative pressure. Then, through the cooperation of the connecting pipe 7, air will be injected into the inside of the first telescopic pipe 5. After the first telescopic pipe 5 is inflated, the scraper 93 will clean the surface of the screening frame 2 through the cooperation of the moving block 91 and the support plate 92, thereby reducing the blockage of the screening frame 2.

[0034] The air inside the fixed cylinder 42 can cause the piston rod 43 to push the screening frame 2 in the opposite direction, thereby increasing the vibration amplitude of the screening frame 2.

[0035] When the first telescopic tube 5 stops expanding, the pressure inside the first telescopic tube 5 and the connecting tube 7 will increase. At this time, under the action of the pressure relief valve 10, air will move into the interior of the second telescopic tube 81, thereby inflating the second telescopic tube 81. When it is inflated, it will drive the movable rod 83 to open the one-way valve 82, thereby releasing the air inside the first telescopic tube 5. Subsequently, with the cooperation of the tension spring 6, the first telescopic tube 5 drives the scraping mechanism 9 to move and reset. After the first telescopic tube 5 is reset, the movable rod 83 on its surface will open the one-way valve 82 on the surface of the second telescopic tube 81, thereby moving the movable rod 83 out of the one-way valve 82 on the surface of the first telescopic tube 5, thus continuing to inflate the first telescopic tube 5. The scraping mechanism 9 reciprocates to clean the screening frame 2.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A clog prevention device for a vibrating screen in a coke oven, comprising a vibrating machine body (1) and a screening frame (2) installed inside it, characterized in that, Also includes: A fixed shell (3) is installed on the surface of the frame of the vibrating machine body (1), and an auxiliary mechanism (4) is installed on the surface of the fixed shell (3) to apply reverse force to the screening frame (2). A connecting pipe (7) is provided on one side of the auxiliary mechanism (4). A pressure relief valve (10) is fixedly connected to the surface of the connecting pipe (7). A first telescopic pipe (5) is installed in the inner cavity of the fixed shell (3). A tension spring (6) is fixedly connected to one end of the inner cavity of the first telescopic pipe (5). A scraping mechanism (9) is installed at one end of the first telescopic tube (5) to clean the screening frame (2), and a reset mechanism (8) for moving the scraping mechanism (9) is installed in the inner cavity of the fixed shell (3).

2. The anti-clogging device for a vibrating screen in a semi-coke coke production area according to claim 1, characterized in that: The auxiliary mechanism (4) includes a connecting plate (41) fixed to the surface of the fixed shell (3) and a number of fixed cylinders (42) fixed to its top. The inner cavity of the fixed cylinder (42) is movably connected to a piston rod (43), and a one-way air intake valve (44) is fixedly connected to one side of the fixed cylinder (42).

3. The anti-clogging device for a vibrating screen in a semi-coke coke production area according to claim 1, characterized in that: The scraping mechanism (9) includes a movable block (91) fixed to one end of the first telescopic tube (5) and a support plate (92) fixed to one side thereon. A scraping plate (93) is fixedly connected to the top of the support plate (92).

4. The anti-clogging device for a vibrating screen in a semi-coke coke production tower according to claim 1, characterized in that: The reset mechanism (8) includes a second telescopic tube (81) fixed in the inner cavity of the fixed shell (3). A one-way valve (82) is installed on the surface of the second telescopic tube (81) and one end of the first telescopic tube (5). A movable rod (83) is fixedly connected to one end of the second telescopic tube (81) and the surface of the first telescopic tube (5).

5. The anti-clogging device for a vibrating screen in a semi-coke coke production area according to claim 2, characterized in that: The lower surface of the piston rod (43) is slidably connected to the inner wall of the fixed cylinder (42), and the lower surface of the piston rod (43) is made of rubber.

6. The anti-clogging device for a vibrating screen in a semi-coke coke production area according to claim 3, characterized in that: The scraper (93) is made of rubber and has an inclined structure design on both sides.

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