Anti-blocking coal slime kneading device

Abstract

The application discloses a clogging-preventing coal slime kneading and mixing device, which comprises a lower box body, an upper shell body connected to the lower box body, a feeding cylinder communicated with the surface of the upper shell body, a stirring device and a coal slime filter screen arranged in the lower box body, a vibrating device arranged on the coal slime filter screen, and the stirring device and the vibrating device being rotationally connected. A conical first rotating flow plate is arranged in the conical feeding cylinder, so that the coal and water can be fully mixed. Through the cooperation of the second rotating flow plate and the stirring paddle, the kneading and mixing of the coal slime can be fully realized, so that the accumulation of the coal slime is greatly reduced. The vibrating of the coal slime filter screen is realized through the rotation and impact of the cam on the impact peg, and the impact of the impact peg on the rubber ring, so that the clogging risk of the filter screen is greatly reduced. Through the water flushing pipeline, the hollow rotating shaft and the scraper, a channel is formed, and the dilution water can flow out of the water outlet through the channel, so that the coal slime scraped by the scraper from the coal slime filter screen is diluted, so that the coal slime is dispersed and accumulated, the clogging risk of the screen is reduced, and the uniformity of the kneaded and mixed coal slurry is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of coal slime mixing equipment and relates to a coal slime kneading device capable of preventing blockage. BACKGROUND

[0002] In the preparation process of high-concentration gasification slurry, kneading of fine particle pressurized filter coal is a key link, and the pressurized filter coal and process water directly enter the kneader, so that the pressurized filter coal and water cannot be fully mixed, and the existing kneader only realizes kneading of the pressurized filter coal and water through two rows of stirring paddles, so that the kneading effect is poor, and the kneaded coal slurry is prone to contain lumpy coal slime. Meanwhile, the kneading effect directly affects the fine grinding quality of the downstream system fine grinder, and the existing kneader itself is one of important equipment of the system, so that when uneven kneading occurs in the kneading of the coal and water, a large amount of lumpy coal slime is prone to accumulate, and problems such as blockage risk are prone to occur. SUMMARY

[0003] The application aims to provide a coal slime kneading device capable of preventing blockage, and solves the problem of easy blockage risk in the prior art.

[0004] The technical scheme adopted by the application is that the coal slime kneading device capable of preventing blockage comprises a lower box body, an upper shell body connected to the lower box body, a feeding cylinder communicated with the surface of the upper shell body, a stirring device and a coal slime filter screen arranged in the lower box body, a vibrating device arranged on the coal slime filter screen, and the stirring device is rotationally connected to the vibrating device.

[0005] The application also has the following characteristics:

[0006] The feeding cylinder comprises a cylinder body, a first cyclone plate is arranged in the cylinder body, a driven gear a is arranged at one end of the cylinder body, and the other end of the cylinder body is connected to the upper shell body through a rotating device.

[0007] The rotating device comprises a fixed ring connected to the cylinder body, a rotating protrusion is connected to the outer wall of the fixed ring, a fixed seat is connected to the upper shell body, a sliding groove is formed in the inner wall of the fixed seat, and the rotating protrusion is located in the sliding groove.

[0008] The stirring device comprises a hollow rotating shaft, a plurality of second cyclone plates are sequentially arranged on the hollow rotating shaft, a stirring paddle is arranged between adjacent two second cyclone plates, a solid rotating shaft is connected to one end of the hollow rotating shaft, the coal slime filter screen is sleeved on the solid rotating shaft through the vibrating device, and a driven gear b is sleeved on the other end of the hollow rotating shaft.

[0009] A scraper for scraping coal slime on the coal slime filter screen is connected to the solid rotating shaft.

[0010] A groove is axially formed in the end of the hollow rotating shaft close to the coal slime filter screen, the scraper is located in the groove, a water flushing pipeline is communicated with the other end of the hollow rotating shaft through a second fixed shaft, and a plurality of water outlets are arranged on the scraper.

[0011] The hollow rotating shaft and the solid rotating shaft are connected with the lower box body through the first fixing shaft respectively.

[0012] The vibration device comprises a cam, a punch fixing ring and an outer wall ring arranged in sequence from inside to outside, the cam outer wall is provided with a convex corner, the cam is sleeved on the stirring device, the outer wall ring is connected on the slime filter screen, the inner wall of the outer wall ring is provided with an embedding groove, a rubber ring is embedded in the embedding groove, punches are arranged on the punch fixing ring, the length of the punch is greater than the thickness of the punch fixing ring, the punch fixing ring and the outer wall ring are connected through a bottom plate, springs are connected on the bottom plate, and the free end of the spring is connected with the punch.

[0013] The bottom plate is connected with the spring through a mounting buckle.

[0014] The stirring device and the vibration device comprise two, two stirring devices are symmetrically arranged in the lower box body, and the second rotating flow plates and the stirring paddles in the two stirring devices are cross arranged.

[0015] The beneficial effects of the present application are: the anti-blocking slime kneading device of the present application is provided with a conical first rotating flow plate in the conical feeding cylinder, which can realize the full mixing of coal and water; through the mutual cooperation of the second rotating flow plate and the stirring paddle, the kneading of the slime is fully realized, and the accumulation of the slime is greatly reduced; through the rotation and impact of the cam on the punch, and the impact of the punch on the rubber ring, the vibration of the slime filter screen is realized, and the risk of blocking of the filter screen is greatly reduced; through the channel formed by the water flushing pipeline, the hollow rotating shaft and the scraper, the dilution water can flow out from the water outlet through the channel, and the coal slime scraped by the scraper on the slime filter screen is diluted, so that the coal slime is dispersed and accumulated, which not only reduces the risk of screen blocking, but also improves the uniformity of the kneaded coal slurry. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the anti-blocking slime kneading device of the present application;

[0017] Figure 2 is a structural schematic view of the stirring device in the anti-blocking slime kneading device of the present application;

[0018] Figure 3 is a structural schematic view of the lower box body in the anti-blocking slime kneading device of the present application;

[0019] Figure 4 is a structural schematic view of the feeding cylinder in the anti-blocking slime kneading device of the present application;

[0020] Figure 5 is a structural schematic view of the rotating device in the anti-blocking slime kneading device of the present application;

[0021] Figure 6 is a structural schematic view of the slime filter screen in the anti-blocking slime kneading device of the present application;

[0022] Figure 7This is a schematic diagram of the structure of the vibration device inside the anti-clogging coal slime kneading device of the present invention;

[0023] Figure 8 This is a schematic diagram of the inner and outer wall rings of the anti-clogging coal slime kneading device of the present invention.

[0024] In the diagram, 1. Lower housing, 101. Housing body, 102. Mounting hole, 103. Feed chute, 2. Upper housing, 3. Feed cylinder, 301. Cylinder, 302. First swirl plate, 303. Driven gear a, 304. Rotating device, 3041. Fixing ring, 3042. Rotating protrusion, 3043. Fixing seat, 3044. Slide groove, 4. Stirring device, 401. Hollow rotating shaft, 402. Second swirl plate, 403. Stirring paddle, 404. Solid rotating shaft, 405. Scraper, 40 6. Driven gear b, 407. First fixed shaft, 408. Groove, 409. Second fixed shaft, 4010. Water outlet, 5. Coal slurry filter screen, 501. Through hole, 6. Vibration device, 601. Cam, 602. Rivet fixing ring, 603. Outer wall ring, 604. Groove, 605. Rubber ring, 606. Rivet, 607. Base plate, 608. Spring, 609. Mounting buckle, 6010. Protruding corner, 6011. Rivet mounting hole, 7. Flushing pipe, 8. Observation port, 9. Support leg. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0026] Anti-clogging coal slime kneading device, such as Figures 1-2 As shown, the device includes a lower housing 1, with an upper housing 2 detachably connected to the top of the lower housing 1. A feed cylinder 3 is connected to the surface of the upper housing 2. A stirring device 4 and a coal slurry filter screen 5 are installed inside the lower housing 1. A vibration device 6 is installed on the coal slurry filter screen 5. The stirring device 4 and the vibration device 6 are rotatably connected. The upper housing 2 is also provided with an observation port 8 for easy observation of the feeding of the mixed coal slurry.

[0027] like Figure 3 As shown, the lower housing 1 includes a housing body 101, on which a mounting hole 102 adapted to the first fixed shaft 407 is provided, and a material discharge groove 103 is provided at the bottom of the housing body 101.

[0028] like Figure 4 As shown, the feed cylinder 3 includes a conical cylinder 301, inside which a conical first swirl plate 302 is installed. A driven gear a303 is installed at one end of the cylinder 301, and the other end of the cylinder 301 is connected to the upper shell 2 via a rotating device 304. A motor is connected to the driven gear a303 for gear transmission, causing the cylinder 301 to rotate. Under the action of the conical swirl plate 302, the filter coal and process water are thoroughly mixed. Figure 5As shown, the rotating device 304 comprises a fixed ring 3041 connected with the cylinder body 301, the outer wall of the fixed ring 3041 is connected with a rotating protrusion 3042, a fixed seat 3043 is connected on the upper shell 2, a sliding groove 3044 is opened on the inner wall of the fixed seat 3043, the rotating protrusion 3042 is located in the sliding groove 3044 and rotates along the sliding groove 3044.

[0029] The stirring device 4 comprises a hollow rotating shaft 401, a plurality of second cyclone plates 402 are sequentially arranged on the hollow rotating shaft 401, a stirring paddle 403 is arranged between adjacent two second cyclone plates 402, through the cooperation of the cyclone plates and the stirring paddles, the kneading of the coal slime is fully realized, and the accumulation of the coal slime is greatly reduced. One end of the hollow rotating shaft 401 is connected with a solid rotating shaft 404, the coal slime filter screen 5 is sleeved on the solid rotating shaft 404 through the vibrating device 6, a scraper 405 for scraping the coal slime on the coal slime filter screen 5 is connected on the solid rotating shaft 404, a driven gear b 406 is sleeved on the other end of the hollow rotating shaft 401, the motor is in gear transmission connection with the driven gear b 406, so that the hollow rotating shaft 401 drives the second cyclone plate 402, the stirring paddle 403 and the solid rotating shaft 404 to rotate. The hollow rotating shaft 401 and the solid rotating shaft 404 are respectively connected with the lower box body 1 through a first fixed shaft 407. A groove 408 is axially opened on one end of the hollow rotating shaft 401 close to the coal slime filter screen 5, the scraper 405 is located in the groove 408, the other end of the hollow rotating shaft 401 is connected with the water flushing pipeline 7 through a second fixed shaft 409, a plurality of water outlets 4010 are arranged on the scraper 405. The water flushing pipeline 7 is supported through the supporting leg 9.

[0030] As shown, Figures 6-8 The vibrating device 6 comprises a cam 601, a punch fixing ring 602 and an outer wall ring 603 which are sequentially arranged from inside to outside, the outer wall of the cam 601 is provided with a convex corner 6010, the cam 601 is sleeved on the solid rotating shaft 404, the outer wall ring 603 is connected on the coal slime filter screen 5, the inner wall of the outer wall ring 603 is provided with an embedding groove 604, a rubber ring 605 is embedded in the embedding groove 604, a plurality of punch mounting holes 6011 are uniformly arranged on the circumference of the punch fixing ring 602, a punch 606 is mounted in each punch mounting hole 6011, the length of the punch 606 is greater than the thickness of the punch fixing ring 602, the punch fixing ring 602 and the outer wall ring 603 are connected through an annular bottom plate 607, a spring 608 is connected on the bottom plate 607, the free end of the spring 608 is connected with the punch 606 through a mounting buckle 609. The convex corner 6010 rotates to hit the punch 606, so that the punch 606 further hits the rubber ring 605, so that the coal slime filter screen 5 vibrates.

[0031] The stirring device 4 and the vibrating device 6 include two, two stirring devices 4 are symmetrically arranged in the lower box body 1, the coal slime filtering screen 5 is provided with a through hole 501, the vibrating device 6 is arranged in each through hole 501, the second cyclone plate 402 and the stirring paddle 403 are cross arranged on the two hollow rotating shafts 401, the two second cyclone plates 402 and the stirring paddles 403 are cross rotated to sufficiently mix the coal slime.

[0032] The working principle of the anti-blocking coal slime kneading device is as follows:

[0033] When working, the filter-pressed coal and process water enter the feeding cylinder 3, the driven gear a 303 rotates under the driving of the motor driving gear, the rotating protrusion 3042 rotates in the chute 3044, so that the filter-pressed coal and process water are sufficiently mixed under the action of the conical first cyclone plate 302. After mixing, the filter-pressed coal and water enter the lower box body 1 from the feeding port, the motor driving gear drives the driven gear b 406 to rotate, so that the hollow rotating shaft 401 and the solid rotating shaft 404 rotate, the second cyclone plate 402 and the stirring paddle 403 knead part of the coal slime and push the coal slime forward to the coal slime filtering screen 5, the cam 601 rotates with the solid rotating shaft 404, the lobe 6010 hits the peg 606, so that the peg 606 further hits the rubber ring 605, so that the coal slime filtering screen 5 vibrates, at this time, the spring 608 is in a stretched state. When the lobe 6010 passes the peg 606, the spring 608 resets the peg 606 to the original position. The lobe 6010 continuously hits the four pegs 606 to keep the coal slime filtering screen 5 in a vibrating state, thereby preventing the coal slime filtering screen 5 from being blocked. The scraper 66 is driven by the hollow rotating shaft 401 to scrape the coal slime filtering screen 5, at the same time, process water flows into the scraper 405 through the water flushing pipeline 7 and the hollow rotating shaft 401, and flows out from the water outlet hole 4010 to dilute and disperse the scraped coal slime, thereby preventing the coal slime filtering screen 5 from being blocked. At the same time, the coal slurry discharge after kneading can be observed through the observation port 8 to determine whether the device is operating normally.

[0034] Through the above mode, the anti-blocking coal slime kneading device can realize the sufficient mixing of coal and water by arranging the conical first cyclone plate in the conical feeding cylinder; the coal slime is sufficiently kneaded by the cooperation of the second cyclone plate and the stirring paddle, so that the accumulation of the coal slime is greatly reduced; the vibration of the coal slime filtering screen is realized by the rotation of the cam hitting the peg, and the peg hitting the rubber ring, so that the risk of blocking the filtering screen is greatly reduced; the dilution water can flow out from the water outlet hole through the channel formed by the water flushing pipeline, the hollow rotating shaft and the scraper, so as to dilute the agglomerated coal slime scraped by the scraper, thereby dispersing the coal slime accumulation, which not only reduces the risk of screen blocking, but also improves the uniformity of the kneaded coal slurry.

Claims

1. A clogging-preventing sludge kneading and mixing device, characterized by comprising: The utility model provides a coal slurry filter device, including lower box (1), be connected with upper casing (2) on lower box (1), the surface of upper casing (2) is connected with the feeding cylinder (3), be provided with stirring device (4), coal slurry filter screen (5) in lower box (1), be provided with vibrating device (6) on coal slurry filter screen (5), stirring device (4) with vibrating device (6) rotation connection; The feeding cylinder (3) includes a cylinder body (301), a first rotating flow plate (302) is arranged in the cylinder body (301), a driven gear a (303) is arranged at one end of the cylinder body (301), and the other end of the cylinder body (301) is connected with the upper casing (2) through a rotating device (304); The stirring device (4) includes a hollow rotating shaft (401), a plurality of second rotating flow plates (402) are sequentially arranged on the hollow rotating shaft (401), stirring paddles (403) are arranged between adjacent two second rotating flow plates (402), a solid rotating shaft (404) is connected to one end of the hollow rotating shaft (401), the coal slurry filter screen (5) is sleeved on the solid rotating shaft (404) through the vibrating device (6), and a driven gear b (406) is sleeved on the other end of the hollow rotating shaft (401); The solid rotating shaft (404) is connected with a scraper (405) for scraping coal slurry on the coal slurry filter screen (5); A groove (408) is axially arranged on one end of the hollow rotating shaft (401) close to the coal slurry filter screen (5), the scraper (405) is located in the groove (408), the other end of the hollow rotating shaft (401) is connected with a water flushing pipeline (7) through a second fixing shaft (409), and a plurality of water outlets (4010) are arranged on the scraper (405); The vibrating device (6) includes a cam (601), a peg fixing ring (602), and an outer wall ring (603) sequentially arranged from inside to outside, the outer wall of the cam (601) is provided with a convex corner (6010), the cam (601) is sleeved on the stirring device (4), the outer wall ring (603) is connected to the coal slurry filter screen (5), the inner wall of the outer wall ring (603) is provided with an embedding groove (604), a rubber ring (605) is embedded in the embedding groove (604), the peg fixing ring (602) is provided with a peg (606), the length of the peg (606) is greater than the thickness of the peg fixing ring (602), the peg fixing ring (602) and the outer wall ring (603) are connected through a bottom plate (607), the bottom plate (607) is connected with a spring (608), and the free end of the spring (608) is connected with the peg (606).

2. The anti-plugging sludge kneading and mixing device according to claim 1, characterized in that, The rotating device (304) includes a fixing ring (3041) connected with the cylinder body (301), the outer wall of the fixing ring (3041) is connected with a rotating protrusion (3042), the upper casing (2) is connected with a fixed seat (3043), the inner wall of the fixed seat (3043) is provided with a sliding groove (3044), and the rotating protrusion (3042) is located in the sliding groove (3044).

3. The anti-plugging sludge kneading and mixing device according to claim 1, characterized in that, The hollow rotating shaft (401) and the solid rotating shaft (404) are connected with the lower box body (1) through a first fixing shaft (407) respectively.

4. The anti-plugging sludge kneading and mixing device according to claim 1, characterized in that, The bottom plate (607) is connected with the spring (608) through a mounting buckle (609).

5. The anti-plugging sludge kneading and mixing device according to claim 1, characterized in that, The stirring device (4) and the vibrating device (6) comprise two, two stirring devices (4) are symmetrically arranged in the lower box body (1), and the second rotating flow plates (402) and the stirring paddles (403) in the two stirring devices (4) are cross arranged.

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