Buffer structure for feed port of coke fraction screening machine

Abstract

The utility model discloses a coke fraction screening machine feed inlet buffer structure which comprises a screening machine body, a discharging chute, a shrinkage dustproof pipe and a wear-resisting buffer plate, the screening machine body comprises a shell arranged in an inclined mode and a plurality of screening plates arranged in the shell in an inclined mode, and the screening plates are distributed in the shell at intervals in the vertical direction. The feeding hopper is arranged on the top face of the upper portion of the shell, the discharging chute is arranged above the feeding hopper, one end of the shrinkage dustproof pipe is connected with an outlet of the discharging chute, the other end of the shrinkage dustproof pipe is connected with a feeding port of the feeding hopper, and the abrasion-resistant buffer plate is obliquely arranged below a discharging port of the feeding hopper and forms angles with the shell wall of the shell and the plate face of the sieve plate. The telescopic dustproof pipe is arranged between the discharging articulated chute and the feeding hopper in a flexible connection mode, flying dust is effectively prevented from overflowing, and the field operation environment is improved; coke is prevented from directly impacting the sieve plate through the wear-resisting buffer plate so as to reduce sieve plate abrasion, the service life of the sieve plate is prolonged, and the accuracy of sieving results is improved.

Description

Technical Field

[0001] This utility model relates to the field of coke screening machine technology, specifically a buffer structure for the feed inlet of a coke particle size screening machine. Background Technology

[0002] To improve the efficiency of coke sampling, the previous steps of eliminating the coke conveyor end sampler hopper and manually transporting coke into the vibrating screen were eliminated (i.e., the sampler's discharge chute is directly aligned with the screening machine's inlet, and the sample is directly sent to the screening machine for screening, reducing manpower and screening time). Currently available coke sampling equipment (coke belt end samplers and coke particle size separators) does not adequately consider the connection between the sampler's discharge chute and the separator's inlet. This leads to issues affecting the on-site working environment and the accuracy of screening results. Firstly, the discharge chute cannot be rigidly connected to the vibrating screen's inlet (a rigid connection would severely affect the separator's amplitude, thus impacting the accuracy of coke particle size separation). Therefore, it is suspended in the middle of the inlet, resulting in significant dust generation during discharge, severely polluting the working environment and affecting the health of workers. Secondly, the separator's inlet lacks a buffer device. The sampler is installed on a second-floor platform, while the separator is installed on the ground floor, creating a significant height difference. This results in a large impact force when the coke enters the separator, causing direct contact between the coke and the separator's screen plates. This leads to easy deformation and wear of the screen plates, severely affecting the accuracy of screening results and the lifespan of the screen plates. Utility Model Content

[0003] The purpose of this utility model is to provide a buffer structure for the feed inlet of a coke particle size screening machine that improves the on-site working environment and enhances the accuracy of screening results, in order to solve the problem mentioned in the background art that the large height difference between the sampling machine and the screening machine affects the on-site working environment and the accuracy of screening results.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A buffer structure for the feed inlet of a coke particle size screening machine includes a screening machine body, a discharge chute, a shrinking dustproof pipe, and a wear-resistant buffer plate. The screening machine body includes an inclined shell and multiple screen plates inclinedly arranged inside the shell. The multiple screen plates are distributed vertically at intervals inside the shell. A feed hopper is provided on the top surface of the upper part of the shell. The discharge chute is located above the feed hopper. One end of the shrinking dustproof pipe is connected to the outlet of the discharge chute, and the other end is connected to the feed inlet of the feed hopper. The wear-resistant buffer plate is inclinedly arranged below the discharge outlet of the feed hopper, and is angled to the shell wall and the surface of the screen plates respectively. One end of the wear-resistant buffer plate is connected upward to the bottom of the feed hopper.

[0006] Preferably, the shrink-fit dustproof tube is made of rubber or corrugated.

[0007] Preferably, the feed inlet buffer structure of the coke particle size screening machine includes a flange, and the upper and lower ends of the shrink dustproof pipe are detachably installed at the discharge chute outlet and the feed hopper inlet respectively through the flange.

[0008] Preferably, the feed inlet buffer structure of the coke particle size screening machine includes a crossbeam, which is horizontally arranged inside the shell, with both ends of the crossbeam connected to the inner wall of the shell and located below the feed hopper outlet.

[0009] Preferably, the wear-resistant buffer plate is detachably mounted on the crossbeam.

[0010] Preferably, one side of the lower end of the feed hopper extends into the housing to form an extension that connects with the wear-resistant buffer plate.

[0011] Preferably, the wear-resistant buffer plate has a rubber layer laid on the top surface facing the discharge port of the feed hopper.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By using a flexible connection, a shrinkable dustproof pipe is installed between the discharge chute and the feed hopper, effectively controlling dust overflow and improving the on-site working environment. Furthermore, the flexible connection between the discharge chute and the feed hopper does not affect the amplitude of the screening machine itself, thus avoiding any impact on the accuracy of coke particle size screening. The use of wear-resistant buffer plates prevents direct impact of coke on the screen plate, reducing screen plate wear and extending its service life, thereby improving the accuracy of the screening results.

[0014] 2. The flanges are connected to the discharge chute and feed hopper respectively by bolts. When the screening machine body is under maintenance or the screen plate and wear-resistant buffer plate need to be replaced, the bolts and flanges can be removed to remove the shrink dustproof pipe. The structure is simple and the removal and installation are convenient.

[0015] 3. A rubber layer is laid on the top surface of the wear-resistant buffer plate facing the discharge port of the feed hopper. The rubber layer is used to reduce the impact of coke on the wear-resistant buffer plate, prevent wear of the wear-resistant buffer plate, and play a protective role. The rubber layer can be fixed to the top surface of the wear-resistant buffer plate by bolts or clips, so that it can be replaced after the rubber layer is damaged. If a groove is opened on the top surface of the wear-resistant buffer plate, the rubber layer is embedded in the groove. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the buffer structure at the feed inlet of the coke particle size screening machine of this utility model.

[0017] The markings in the image correspond to the following:

[0018] 1. Screening machine body; 11. Shell; 12. Screen plate; 2. Feed chute; 3. Shrink dustproof pipe; 4. Wear-resistant buffer plate; 5. Feed hopper; 51. Extension section; 6. Flange; 7. Crossbeam. Detailed Implementation

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Please see Figure 1 A buffer structure for the feed inlet of a coke particle size screening machine includes a screening machine body 1, a discharge chute 2, a shrinking dustproof pipe 3, and a wear-resistant buffer plate 4. The screening machine body 1 includes an inclined shell 11 and multiple screen plates 12 inclinedly arranged within the shell 11, with the screen plates 12 distributed vertically at intervals within the shell 11. A feed hopper 5, funnel-shaped, is provided on the upper top surface of the shell 11, and the discharge chute 2 is positioned above the feed hopper 5. One end of the shrinking dustproof pipe 3 is connected to the outlet of the discharge chute 2, and the other end is connected to the feed inlet of the feed hopper 5. The wear-resistant buffer plate 4 is inclinedly arranged below the discharge outlet of the feed hopper 5, forming an angle with the shell wall of the shell 11 and the surface of the screen plates 12, with one end of the wear-resistant buffer plate 4 facing upwards and connected to the bottom of the feed hopper 5. In this embodiment, the shrinking dustproof pipe 3 is a rubber tube or a corrugated pipe.

[0021] In this embodiment, a shrinkable dustproof pipe 3 is installed between the discharge chute 2 and the feed hopper 5 using a flexible connection. This effectively controls dust overflow without affecting the amplitude of the screening machine body 1, improving the on-site working environment, reducing occupational health risks such as pneumoconiosis, and avoiding affecting the accuracy of coke particle size screening. Furthermore, a wear-resistant buffer plate 4 is installed to prevent coke from directly impacting the screen plate 12, effectively preventing deformation of the screen plate 12 due to excessive impact force, reducing wear on the screen plate 12, and increasing the service life of the screen plate 12, thereby improving the accuracy of screening results. Since the shrinkable dustproof pipe 3 and the wear-resistant buffer plate 4 are relatively simple in structure, this buffer structure also has the characteristics of simple structure, convenient installation, good performance, and low manufacturing cost.

[0022] Please see Figure 1The feed inlet buffer structure of the coke particle size screening machine includes a flange 6. The upper and lower ends of the shrinkage dustproof pipe 3 are detachably installed at the outlet of the discharge chute 2 and the inlet of the feed hopper 5, respectively, via flange 6. In this embodiment, flange 6 can be connected to the discharge chute 2 and the feed hopper 5 respectively by bolts. When the screening machine body 1 is under maintenance or the screen plate 12 and wear-resistant buffer plate 4 need to be replaced, the bolts and flange 6 can be removed to complete the removal of the shrinkage dustproof pipe 3. The structure is simple and the removal and installation are convenient.

[0023] The feed inlet buffer structure of the coke particle size screening machine includes a crossbeam 7, which is horizontally arranged inside the housing 11. Both ends of the crossbeam 7 are connected to the inner wall of the housing 11 and are located below the discharge port of the feed hopper 5. A wear-resistant buffer plate 4 is detachably mounted on the crossbeam 7. One side of the lower end of the feed hopper 5 extends into the housing 11 to form an extension 51 connected to the wear-resistant buffer plate 4. In this embodiment, the wear-resistant buffer plate 4 is fixed to the crossbeam 7 with bolts. When the wear-resistant buffer plate 4 is damaged, it can be removed from the crossbeam 7 using bolts.

[0024] The wear-resistant buffer plate 4 has a rubber layer on its top surface facing the discharge port of the feed hopper 5. The rubber layer is used to reduce the impact of coke on the wear-resistant buffer plate 4, prevent wear, and provide protection. The rubber layer can be fixed to the top surface of the wear-resistant buffer plate 4 by bolts or clips for easy replacement if it is damaged. For example, a groove is provided on the top surface of the wear-resistant buffer plate 4, and the rubber layer is embedded in the groove. The groove is T-shaped.

[0025] The working principle of the feed inlet buffer structure of this utility model coke particle size screening machine is as follows: the coke falling from the discharge port of the discharge chute 2 falls into the feed hopper 5 through the shrink dustproof pipe 3, and further falls onto the wear-resistant buffer plate 4 through the discharge port below the feed hopper 5. The coke buffered by the wear-resistant buffer plate 4 slides down or rolls onto the screen plate 12 inside the shell 11, thereby avoiding the easy deformation of the screen plate 12 due to excessive impact force, and solving the problem of affecting the on-site working environment and the accuracy of test results in the existing coke sampling operation.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A buffer structure for the feed inlet of a coke particle size screening machine, characterized in that: The machine includes a screening machine body (1), a discharge chute (2), a shrink dustproof pipe (3), and a wear-resistant buffer plate (4). The screening machine body (1) includes an inclined shell (11) and multiple screen plates (12) inclined inside the shell (11). The multiple screen plates (12) are distributed vertically at intervals inside the shell (11). A feed hopper (5) is provided on the top surface of the upper part of the shell (11). The discharge chute (2) is located above the feed hopper (5). One end of the shrink dustproof pipe (3) is connected to the outlet of the discharge chute (2), and the other end is connected to the feed inlet of the feed hopper (5). The wear-resistant buffer plate (4) is inclined below the outlet of the feed hopper (5) and is set at an angle to the shell wall of the shell (11) and the surface of the screen plate (12). One end of the wear-resistant buffer plate (4) is connected upward to the bottom end of the feed hopper (5).

2. The buffer structure at the feed inlet of the coke particle size screening machine according to claim 1, characterized in that: The shrinkable dustproof tube (3) is made of rubber or corrugated tube.

3. The feed inlet buffer structure of the coke particle size screening machine according to claim 1, characterized in that: Includes flange (6), the upper and lower ends of the shrink dustproof pipe (3) are detachably installed at the outlet of the discharge chute (2) and the inlet of the feed hopper (5) respectively through flange (6).

4. The buffer structure at the feed inlet of the coke particle size screening machine according to claim 1, characterized in that: Includes a crossbeam (7), which is horizontally arranged inside the housing (11). Both ends of the crossbeam (7) are connected to the inner wall of the housing (11) and are located below the discharge port of the feed hopper (5).

5. The feed inlet buffer structure of the coke particle size screening machine according to claim 4, characterized in that: The wear-resistant buffer plate (4) is detachably mounted on the crossbeam (7).

6. The feed inlet buffer structure of the coke particle size screening machine according to claim 1, characterized in that: The feed hopper (5) extends into the housing (11) from one side of its lower end to form an extension (51) that connects with the wear-resistant buffer plate (4).

7. The feed inlet buffer structure of the coke particle size screening machine according to claim 6, characterized in that: The wear-resistant buffer plate (4) has a rubber layer laid on the top surface facing the discharge port of the feed hopper (5).

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