Efficient ball pressing device for clean briquette coal
By designing a clean coal high -efficiency ball -pressing device including buffer board, sieve plate and brush, the problem of easy crushing, low ball rate and working efficiency of coal balls after the formation of coal balls is solved. Cleaning has improved the success rate and work efficiency.
Patent Information
- Application Number
- CN202421434866.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The existing clean coal ball pressing device can easily lead to the crushing of coal balls, low ball formation rate and low working efficiency during use, and the coal powder and crushed materials are easily adhered to the mold sleeve during the molding process, affecting the molding quality.
Design a clean coal high -efficiency ball -to -use coal high -efficiency ball -made ball -made coal -type coal -type coal high -efficiency ball -ball device including the shell, fighting, forming rollers, shafts, brushes, sieve plates and buffer boards. By the combination of buffer board and spring, reduce the impact of coal balls when the fall after forming, and reduce the landing speed of the coal balls; the sieve board and S -shaped material board are used to automatically screen coal powder and fragmented materials; Coal and fragmentation on the roller.
Effectively prevent the crushing of coal balls and improve the rate of ball; automatically clean up the equipment online to improve the efficiency of work; reduce the subsequent screening steps and improve the quality of coal balls.
Smart Images
Figure CN222407351U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal briquette pressing equipment, in particular to a clean coal briquette high-efficiency pressing device. Background Art
[0002] In the production process of clean coal, qualified raw coal is generally purchased from the coal preparation plant. After crushing, screening and metering, the raw coal is mixed with asphalt, tar, additives, etc., and then heated and kept warm. After heating and keeping warm, it is molded to obtain semi-finished coal. The semi-finished coal enters the carbonization furnace for carbonization, and finally the finished coal is quenched. Among them, a briquetting device is needed during the molding process to obtain semi-finished coal briquettes.
[0003] The main structure of the ball pressing device includes the feeding part, the transmission part and the forming part. Among them, the feeding part is mainly to realize quantitative feeding to ensure that the material enters the roller evenly; the transmission part is generally composed of a motor, a triangular belt, a reducer, an open gear, and a pressing roller; the forming part mainly refers to the main machine part, and the core part is the pressing roller, which is equipped with a forming mold sleeve. The material is squeezed into the required shape by the two pressing rollers. The existing briquetting device still has the following problems during use: First, after the coal balls are formed, they fall under their own gravity, and the impact and collision easily cause the coal balls to break and damage, which reduces the coal ball formation rate; second, during the forming process, there will be a lot of coal powder and broken materials mixed in the coal balls, which need to be screened separately later, and the coal powder and broken materials need to be screened out for continued use, which is not efficient; third, because the coal powder is mixed with asphalt, tar, additives and other substances, these substances have a certain viscosity, so that after the coal balls are formed and demolded, some coal powder and broken pieces often adhere to the forming mold sleeve, making the coal balls incomplete, reducing the forming quality of the coal balls, and also affecting the subsequent pressing of the coal balls, reducing the coal ball formation rate. Therefore, it is objectively necessary to develop a clean coal high-efficiency briquetting device that is not easy to break, has high working efficiency, and can be cleaned online by itself. Utility Model Content
[0004] The utility model aims to provide a clean coal high-efficiency briquetting device which is not easy to break, has high working efficiency and can be cleaned online by itself.
[0005] The purpose of the utility model is achieved in this way, including a shell and a hopper arranged on the top of the shell, forming rollers are arranged in pairs on the upper part of the shell, a rotating shaft is arranged below each forming roller, a brush is arranged on the rotating shaft, a driving mechanism for driving the forming rollers and the rotating shaft to rotate respectively is installed on the shell, an inverted V-shaped screen plate is arranged in the shell below the brush, the top of the screen plate is connected to a buffer plate with an arc-shaped upper convexity in the middle through a spring, the buffer plate is located below between the two forming rollers, sieve holes are arranged on the screen plate, a coal ball outlet is arranged on the side wall of the shell above the lower end of the screen plate, and a slag outlet is arranged at the bottom of the shell.
[0006] Furthermore, a flexible pad is provided on the buffer plate.
[0007] Furthermore, a plurality of S-shaped material guide plates are arranged in parallel and at intervals on the two inclined surfaces of the screen plate, and a material guide channel is formed between every two adjacent S-shaped material guide plates.
[0008] Furthermore, a smoke exhaust pipe is arranged on the top of the shell, a dust removal device is arranged on the smoke exhaust pipe, and the dust exhaust pipe of the dust removal device is connected to the hopper.
[0009] Furthermore, a stirrer is arranged in the hopper.
[0010] Furthermore, a transverse tube is provided in the shell outside each forming roller, and the transverse tube is arranged parallel to the forming roller. A plurality of air outlets are evenly distributed on the transverse tube along its length direction, and the air outlet direction of the air outlet is toward the forming roller.
[0011] Furthermore, a slag arc guide plate is symmetrically arranged on the shell side wall above the screen plate. The slag arc guide plate is inclined, with its higher end fixedly connected to the shell side wall and its lower end suspended and located above the higher end of the corresponding screen plate slope.
[0012] When the utility model is in operation, the kneaded raw coal is fed into the hopper, and then falls into the shell through the bottom of the hopper, and the raw coal is pressed into coal balls by the forming rollers. After the coal balls are formed, they fall from between two forming rollers onto the buffer plate, and are divided into two parts on the buffer plate, and fall along two inclined surfaces of the screen plate respectively. During the falling process, the broken pieces and coal powder pass through the sieve holes of the screen plate and fall to the bottom of the shell, and the coal balls after the impurities are screened out are discharged from the coal ball outlet, while the broken pieces and coal powder are discharged from the slag outlet at the bottom of the shell. In the above process, the coal balls will fall onto the buffer plate, and a spring is arranged between the buffer plate and the screen plate. After the coal balls fall onto the buffer plate, the spring is compressed and contracts, absorbing the impact force generated between the coal balls and the buffer plate, reducing the impact force between the coal balls and the buffer plate, thereby preventing the coal balls from being broken and damaged due to excessive impact and collision, and improving the coal ball formation rate; secondly, while using the buffer plate and the spring to reduce the impact force of the coal balls, the falling speed of the coal balls is also reduced. The decelerated coal balls fall from both sides of the buffer plate to the inclined surfaces on both sides of the screen plate, and roll down along the two inclined surfaces of the screen plates respectively. In the rolling process, small coal powder and crushed materials The granular material falls from the sieve holes of the sieve plate to the bottom of the shell, and the material on the sieve is a relatively pure coal ball. Through the above method, the coal powder and crushed materials mixed in the coal ball can be automatically, quickly and more thoroughly separated, and no separate screening is required in the future, which reduces the process steps and improves the work efficiency; in addition, during the working process, the shaft drives the brush to rotate, and the brush can clean the coal powder and crushed materials adhering to the forming roller, preventing the coal powder and crushed materials from adhering to the forming die sleeve, and can automatically remove the coal powder and crushed materials on the forming roller online, ensuring the integrity of the subsequent coal balls after pressing and forming, improving the quality of the coal balls pressed and formed, and improving the coal ball pressing rate. In summary, the utility model has the advantages of not easy to break, high work efficiency, and can be cleaned online by itself. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a structural schematic diagram of the S-shaped material guide plate 12 in the utility model;
[0015] In the figure: 1-shell, 2-hopper, 3-forming roller, 4-rotating shaft, 5-brush, 6-sieve plate, 7-spring, 8-buffer plate, 9-coal ball outlet, 10-slag outlet, 11-flexible pad, 12-S-shaped guide plate, 13-guide channel, 14-smoke exhaust pipe, 15-dust removal device, 16-agitator, 17-cross pipe, 18-slag guide arc plate. DETAILED DESCRIPTION
[0016] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any changes or improvements made based on the present invention belong to the protection scope of the present invention.
[0017] like Figures 1-2 As shown, the utility model comprises a shell 1 and a hopper 2 arranged on the top of the shell 1. The upper part of the shell 1 is provided with forming rollers 3 in pairs. The forming rollers 3 are the prior art and are arranged in pairs. A forming die sleeve is arranged on the forming rollers 3. The material is extruded into a desired shape by the forming rollers 3. During operation, the two forming rollers 3 are driven by a driving mechanism to rotate in opposite directions at the same speed. A rotating shaft 4 is arranged under each forming roller 3. A brush 5 is arranged on the rotating shaft 4. The length of the brush 5 is determined according to actual conditions. The end of the brush 5 should be able to contact the inside of the forming die sleeve on the forming roller 3, so as to facilitate the pulverized coal and crushed coal. In order to remove the coal pieces by brushing, a driving mechanism for driving the forming rollers 3 and the rotating shaft 4 to rotate is installed on the shell 1 respectively. An inverted V-shaped sieve plate 6 is arranged in the shell 1 below the brush 5. The top of the sieve plate 6 is connected with a buffer plate 8 with an arc-shaped upper convexity in the middle through a spring 7. The buffer plate 8 is located below between the two forming rollers 3. Sieve holes are arranged on the sieve plate 6. The size of the sieve holes is determined by the size of the coal balls. The diameter of the sieve holes should be smaller than the diameter of the coal balls, but coal powder and broken pieces can pass through. A coal ball outlet 9 is arranged on the side wall of the shell 1 above the lower end of the sieve plate 6, and a slag outlet 10 is arranged at the bottom of the shell 1.
[0018] When the utility model is in operation, the kneaded raw coal is fed into the hopper 2, and then falls into the shell 1 through the bottom of the hopper 2, and the raw coal is pressed into coal balls by the forming rollers 3. After the coal balls are formed, they fall from between the two forming rollers 3 onto the buffer plate 8, and are divided into two parts on the buffer plate 8, and fall along the two inclined surfaces of the screen plate 6 respectively. During the falling process, the broken pieces and coal powder pass through the sieve holes of the screen plate 6 and fall to the bottom of the shell 1. The coal balls after the impurities are screened out are discharged from the coal ball outlet 9, and the broken pieces and coal powder are discharged from the slag outlet at the bottom of the shell 1. In the above process, the coal ball will fall onto the buffer plate 8, and a spring 7 is arranged between the buffer plate 8 and the screen plate 6. After the coal ball falls onto the buffer plate 8, the spring 7 is compressed and contracts, absorbing the impact force generated between the coal ball and the buffer plate 8, reducing the impact force between the coal ball and the buffer plate 8, thereby preventing the coal ball from being broken and damaged due to excessive impact and collision, and improving the coal ball formation rate; secondly, while using the buffer plate 8 and the spring 7 to reduce the impact force of the coal ball, the falling speed of the coal ball is also reduced. The decelerated coal ball falls from the two sides of the buffer plate 8 to the inclined surfaces on both sides of the screen plate 6, and rolls down along the two inclined surfaces of the screen plate 6 respectively. In the rolling process, coal powder and crushed Small particles such as materials fall from the sieve holes of the sieve plate 6 to the bottom of the shell 1, and the materials on the sieve are relatively pure coal balls. Through the above method, the coal powder and crushed materials mixed in the coal balls can be automatically, quickly and thoroughly separated, and no separate screening is required later, which reduces the process steps and improves work efficiency. In addition, during the working process, the rotating shaft 4 drives the brush 5 to rotate, and the brush 5 can brush off the coal powder and crushed materials adhering to the forming roller 3 to prevent the coal powder and crushed materials from adhering to the forming die sleeve, and can automatically remove the coal powder and crushed materials on the forming roller 3 online, thereby ensuring the integrity of the subsequent coal balls after pressing and forming, improving the quality of the coal balls pressed and forming, and improving the coal ball pressing rate.
[0019] A flexible pad 11 is provided on the buffer plate 8. The flexible pad 11 is a prior art and has certain elasticity and flexibility. It can reduce the impact force between the coal ball and the buffer plate 8 when it falls, further avoid the possibility of the coal ball being broken due to the impact of falling, and improve the coal ball formation rate.
[0020] A plurality of S-shaped guide plates 12 are arranged in parallel and at intervals on the two inclined surfaces of the screen plate 6, and a guide channel 13 is formed between each two adjacent S-shaped guide plates 12. When the pressed coal balls fall onto the inclined surface of the screen plate 6, they will enter the respective guide channels 13, and then roll down along the guide channels 13, which has two advantages: first, the guide channels 13 are S-shaped, and the path for the coal balls to roll down is restricted, so that the coal balls also roll in an S-shaped path, which prolongs the distance and time for the coal balls to be screened on the inclined surface of the screen plate 6, ensures that the coal powder and the broken pieces can be fully screened, and improves the quality of the finished coal balls.
[0021] The top of the shell 1 is provided with a smoke exhaust pipe 14, and a dust removal device 15 is provided on the smoke exhaust pipe 14, and the dust exhaust pipe of the dust removal device 15 is connected to the hopper 2. In the process of pressing the raw coal into coal balls, a certain amount of dust will be generated, and some relatively fine coal powder will be mixed in the gas and discharged. The existing dust removal device 15 is used to remove dust, separate these small particles of coal powder, and return them to the hopper 2 to continue the subsequent coal ball pressing, which can not only prevent dust from polluting the environment, but also recycle the coal powder to prevent the waste of coal powder resources.
[0022] The hopper 2 is provided with an agitator 16, which is an existing device. On the one hand, the agitator improves the mixing uniformity between the coal powder and various additives by stirring, and on the other hand, it prevents the raw coal from agglomerating and causing blockage, ensuring that the raw coal can smoothly fall into the shell 1 for pressing the coal balls.
[0023] A transverse tube 17 is arranged in the housing 1 outside each forming roller 3, and the transverse tube 17 is arranged in parallel with the forming roller 3. A plurality of air outlets are evenly distributed on the transverse tube 17 along its length direction, and the air outlet direction of the air outlet is toward the forming roller 3. When in use, dry pressurized gas is introduced into the transverse tube 17, and the gas is blown toward the forming roller 3 from the air outlet, and some coal powder still adsorbed on the forming roller 3 is blown off. With the use of the brush 5, it is further ensured that the forming roller 3 forming mold sleeve is clean after the coal ball is demoulded, thereby ensuring the ball forming rate and integrity of the subsequent coal ball pressing and molding.
[0024] A slag arc plate 18 is symmetrically arranged on the side wall of the shell 1 above the screen plate 6. The slag arc plate 18 is inclined, and its higher end is fixedly connected to the side wall of the shell 1, and its lower end is suspended and located above the higher end of the inclined surface of the corresponding screen plate 6. When the device is in operation, the brush 5 is driven by the rotating shaft 4 to brush off the coal powder and fragments adhering to the forming roller 3. In this process, the coal powder will be scattered and fly. After falling, part of the coal powder will directly fall to the coal ball outlet 9 position and will be discharged together with the coal ball without screening, causing the problem that the coal ball contains a certain amount of coal powder and fragments. In order to avoid this problem, a slag arc plate 18 is set, so that the falling coal powder can fall on the slag arc plate 18 and fall along the lower end of the slag arc plate 18 to the higher end of the inclined surface of the screen plate 6. In this way, the coal powder and fragments can be fully screened to prevent the coal powder and fragments from mixing into the coal ball.
[0025] When the device is actually used, a vibrator can be installed on the screen plate 6 to cause the screen plate 6 and the coal balls to vibrate, thereby preventing the coal balls, coal powder or fragments from adhering to the screen plate 6, and improving the screening efficiency of coal powder and fragments. A material lifting device such as a screw conveyor can also be set outside the shell 1, the lower feed port is connected to the slag outlet 10, and the upper discharge port is connected to the hopper 2, so that the coal powder and fragments can be returned to the hopper 2 to participate in the pressing of coal balls again, thereby improving the work efficiency.
Claims
1. A clean coal briquette high-efficiency press device, comprising a housing (1) and a hopper (2) arranged on the top of the housing (1), characterized in that The upper part of the shell (1) is provided with forming rollers (3) in pairs, a rotating shaft (4) is provided below each forming roller (3), a brush (5) is provided on the rotating shaft (4), a driving mechanism for driving the forming rollers (3) and the rotating shaft (4) to rotate is installed on the shell (1), an inverted V-shaped screen plate (6) is provided in the shell (1) below the brush (5), the top of the screen plate (6) is connected to a buffer plate (8) with an arc-shaped upper convex middle part through a spring (7), the buffer plate (8) is located below the two forming rollers (3), the screen plate (6) is provided with screen holes, a coal ball outlet (9) is provided on the side wall of the shell (1) above the lower end of the screen plate (6), and a slag outlet (10) is provided at the bottom of the shell (1).
2. The clean coal briquetting device according to claim 1 is characterized in that A flexible pad (11) is provided on the buffer plate (8).
3. The clean coal briquetting device according to claim 1 is characterized in that A plurality of S-shaped material guide plates (12) are arranged in parallel and at intervals on the two inclined surfaces of the sieve plate (6), and a material guide channel (13) is formed between each two adjacent S-shaped material guide plates (12).
4. The clean coal briquetting device according to claim 1 is characterized in that A smoke exhaust pipe (14) is provided on the top of the shell (1), a dust removal device (15) is provided on the smoke exhaust pipe (14), and the dust exhaust pipe of the dust removal device (15) is connected to the hopper (2).
5. The clean coal briquetting device according to claim 1 is characterized in that The hopper (2) is provided with an agitator (16).
6. The clean coal efficient briquetting device according to claim 1 is characterized in that A transverse tube (17) is arranged in the shell (1) outside each forming roller (3), the transverse tube (17) is arranged parallel to the forming roller (3), and a plurality of air outlets are evenly distributed on the transverse tube (17) along its length, with the air outlet direction of the air outlet facing the forming roller (3).
7. The clean coal briquetting device according to claim 1 is characterized in that A slag arc guide plate (18) is symmetrically arranged on the side wall of the shell (1) above the screen plate (6). The slag arc guide plate (18) is arranged obliquely, with its higher end fixedly connected to the side wall of the shell (1) and its lower end suspended and located above the higher end of the inclined surface of the corresponding screen plate (6).