Anti-blocking mill discharge chute device

Abstract

The utility model discloses an anti-blocking mill discharge chute device, and relates to the technical field of coal slurry chute discharge. At least two side crushing chambers are evenly distributed in the middle of the discharging port along the circumferential side face, crushing parts are rotationally connected into the side crushing chambers, the bottoms of the crushing parts extend to the outer sides of the crushing parts and are fixedly connected with driven wheels, the driven wheels are located on the outer side of the discharging port, and outer wheel parts are rotationally connected between the outer sides of the driven wheels. Supporting rings are arranged at the positions, at the bottoms and the tops of the outer wheel pieces, of the discharging opening and are in rolling connection with the outer wheel pieces on the adjacent sides, and driving motors are arranged on the outer sides of the outer wheel pieces. According to the utility model, the plurality of crushing pieces mounted in the discharge hole are driven from the outside to actively stir the circulating coal slurry, so that the problem of blockage of the discharge hole is avoided on the premise of ensuring the discharge sealing of the discharge hole, and the formation of a secondary deposition point by the anti-blocking structure is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal slurry tank discharge technical field, and specifically, it relates to a kind of anti-blocking mill discharge tank device. BACKGROUND

[0002] In the water coal slurry gasification stage of converting coal into coal gas, after being ground by mill (coal mill), the water coal slurry flows into the mill discharge tank, and then is pressurized and transported to the coal slurry tank by the coal mill discharge tank pump, the coal slurry in the coal slurry tank is pressurized and transported to the water coal slurry gasifier by the high-pressure coal slurry pump, and then the oxidation reaction with oxygen occurs to generate the required water gas; During this period, the coal slurry will be stirred and stayed in the mill discharge tank and the coal slurry tank for a long time, and during the subsequent coal slurry transportation process, there will be a phenomenon of backflow of part of the coal slurry, and with the increase of the number of backflow, a part of the blocky coal slurry will be deposited on the inner wall of the mill discharge tank, and there is a certain probability that the part of the coal slurry will fall off, and after falling off, it will block the feed pipe of the coal mill discharge tank pump, so the feed passage of the gasifier is blocked and oxygen is continuously supplied, which leads to excessive oxygen in the furnace, and when the excessive oxygen phenomenon is too severe, it will probably cause an explosion accident, so it is necessary to ensure that the discharge pipeline of the coal mill discharge tank cannot be blocked.

[0003] The patent specification with publication number CN220092024U discloses a coal slurry tank discharge port filter for preventing coal slurry pump blockage; the filter is used by setting a slanted strip-shaped filter plate at the discharge port position of the coal slurry tank, screening the relatively small falling coal slurry through the strip-shaped filter plate, and guiding the larger blocky coal slurry to a collection box on the side, and then cleaning it through the cleaning door on the side of the collection box, and installing a filter plate at the bottom of the strip-shaped filter plate and driving the brush to reciprocally brush and clean the filter plate by the motor;

[0004] The deficiency of this technical solution is that the larger blocky coal slurry is not crushed when the filter is used, but only collected by the collection box, so when the coal slurry block falls off near the collection box side and the caliber is larger than the inlet of the collection box, the strip-shaped filter plate will change from an auxiliary cleaning plate to an auxiliary blocking plate, and the filter grid plate installed at the bottom also has this hidden danger, that is, the plate will also intercept coal slurry while filtering, and with the extension of the use time, the small coal slurry passing through the strip-shaped filter plate will also gradually deposit into blocky coal slurry that cannot be crushed by the brush, that is, the filter plate intercepts the outlet of the coal slurry tank or the coal mill discharge tank, but does not actively crush the deposited falling coal slurry, so the interception point will form a new coal slurry deposition point with the extension of the use time, and will directly block the discharge port of the corresponding tank, affecting the feed passage of the gasifier and causing safety hazards.

[0005] At present, there is no effective solution to the problems in the related technology. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of anti-blocking mill discharge chute devices, and the technical problems to be solved are as follows: the existing coal slurry tank discharge port anti-blocking device when using, with the extension of use time, new block coal slurry storage point is formed, leading to poor anti-blocking effect.

[0007] The utility model discloses the purpose can be realized by the following technical scheme:

[0008] A kind of anti-blocking mill discharge chute device, including discharge port, at least two side crushing chambers are evenly arranged in the middle part of discharge port along circumferential side, rotatingly connected with crushing piece inside the side crushing chamber, the bottom of crushing piece extends to the outside of crushing piece, and fixedly connected with driven wheel, the driven wheel is located the outside of discharge port, rotatingly connected with outer wheel piece between the outside of driven wheel, support ring is set at the bottom and top of outer wheel piece in discharge port, the support ring is rollingly connected with the outer wheel piece of adjacent side, drive motor is set on the outside of outer wheel piece, and the drive motor is used to cooperate with the outer wheel piece and drive each crushing piece rotation.

[0009] As a further scheme of the utility model: the side crushing chamber is communicated with the inside of discharge port on the inside of discharge port, and the outside is conical, the axis of the side crushing chamber is located the outside of discharge port, the crushing piece is conical as a whole, and the shape of outside is adapted to the inner wall of side crushing chamber.

[0010] As a further scheme of the utility model: the crushing piece is evenly provided with a plurality of crushing teeth along circumferential side, and middle part is fixedly connected with middle shaft, the middle shaft penetrates the bottom of side crushing chamber and is fixedly connected with driven wheel, the axis line of the middle shaft is collinear with the axis of side crushing chamber, the inside of crushing piece is away from the side wall of adjacent side inside discharge port.

[0011] As a further scheme of the utility model: the outer wheel piece includes inner gear ring meshed with driven wheel, outer gear ring is set on the outside of inner gear ring, and outer gear ring is connected with drive motor.

[0012] As a further scheme of the utility model: the output end of drive motor is installed with driving wheel, and the driving wheel is meshed with outer gear ring.

[0013] As a further scheme of the utility model: a plurality of ball bearings are evenly installed on the bottom and top of outer wheel piece along annular direction, rolling groove is formed in the bottom of support ring, the rolling groove is rollingly connected with ball bearing, and a plurality of side rods are fixedly connected between the side of support ring away from outer wheel piece and discharge port.

[0014] The utility model discloses the beneficial effect:

[0015] By setting multiple side crushing chambers on the inner side wall of the discharge port, rotatingly connecting the crushing pieces with shapes adapted to the side crushing chambers in the side crushing chambers, the shaft center lines of the side crushing chambers are located on the outside of the discharge port, the central shafts of the crushing pieces with the shaft center lines collinear with the shaft center lines of the side crushing chambers extend to the outside of the discharge port, and the crushing pieces are fixedly connected with driven wheels, the outer wheel pieces are installed between the outside of each driven wheel, and the outer wheel pieces are driven to rotate by the driving motor, in use, the rotation of the outer wheel pieces drives the rotation of each driven wheel, and the crushing pieces located on the inner side of the side crushing chambers rotate, and since the inner side of the crushing pieces is located on the inner side of the inner wall of the discharge port, when the discharge port is blocked, the crushing teeth on the peripheral side of each crushing piece crush the blocked coal slurry, the purpose is to dredge the coal slurry passing through the discharge port by the active crushing mode of driving the crushing pieces to surround and stir, on the one hand, the block-shaped coal slurry is prevented from blocking the discharge port, and on the other hand, the coal slurry is prevented from being intercepted again to form a new deposition point, that is, when the coal slurry is dredged, the normal flow process of the discharge port is not blocked; further, when the active dredging is performed, the external driving motor is driven to the inside of the discharge port to perform the active surrounding and stirring dredging, so that the inner and outer medium exchange is not required in the dredging process, so as to maintain the sealing property of the discharge port. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings.

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the utility model Figure 1 Detail enlarged view of A place in the utility model;

[0019] Figure 3 It is the internal structure schematic diagram of the utility model;

[0020] Figure 4 It is the partial section view of the utility model.

[0021] In the drawing: 1, discharge port; 2, side crushing chamber; 3, crushing piece; 4, driven wheel; 5, outer wheel piece; 6, support ring; 7, driving motor; 8, crushing tooth; 9, central shaft; 10, inner gear ring; 11, outer gear ring; 12, driving wheel; 13, ball; 14, rolling groove; 15, side rod. DETAILED DESCRIPTION

[0022] The technical scheme in the utility model embodiments will be clearly and completely described below in combination with the drawings in the utility model embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0023] As Figures 1 to 4 shown, a kind of anti-blocking mill discharge chute device, including discharge outlet 1, six side crushing chambers 2 are evenly arranged in the middle of discharge outlet 1 along the circumferential side, each side crushing chamber 2 is rotatably connected with the crushing piece 3 inside, the shaft center of crushing piece 3 penetrates the bottom of side crushing chamber 2 and is fixedly connected with driven wheel 4, driven wheel 4 is located on the outside of discharge outlet 1, each driven wheel 4 is rotatably connected between the outside of each driven wheel 4, the bottom and top of discharge outlet 1 are provided with support ring 6 of outer wheel piece 5, support ring 6 is rotatably connected with adjacent side outer wheel piece 5, driving motor 7 is provided on the outside of outer wheel piece 5, driving motor 7 is used to drive each crushing piece 3 to rotate in cooperation with outer wheel piece 5;

[0024] It needs to be explained that discharge outlet 1 is the discharge pipeline of coal mill discharge chute, and is in vertical installation state.

[0025] As Figures 1 to 3 shown, side crushing chamber 2 is communicated with the inside of discharge outlet 1 on the inside of discharge outlet 1, and is conical on the outside, and the shaft center is located on the outside of discharge outlet 1, and crushing piece 3 is conical as a whole, and the shape on the outside is adapted to the inner wall of side crushing chamber 2;

[0026] Crushing piece 3 is evenly provided with three crushing teeth 8 along the circumferential side, and is fixedly connected with middle shaft 9 in the middle, middle shaft 9 penetrates the bottom of side crushing chamber 2, and is fixedly connected with driven wheel 4, middle shaft 9 is collinear with the axis of side crushing chamber 2, and the inside of crushing piece 3 is away from the adjacent side of the side wall inside discharge outlet 1;

[0027] It needs to be explained that the shape of side crushing chamber 2 and crushing piece 3 on the outside of discharge outlet 1 is the same, and crushing piece 3 is complete conical structure, and is the structure of top small bottom big, since discharge outlet 1 is installed directly below the coal mill discharge chute, so coal slurry can pass along the side circumferential surface of crushing piece 3 when passing through discharge outlet 1, this structure is not affected by the conventional passing of coal slurry, and the purpose is to not cause interception effect to the passage of coal slurry.

[0028] Outer wheel piece 5 includes inner gear ring 10 engaged with each driven wheel 4, outer gear ring 11 is provided on the outside of inner gear ring 10, and outer gear ring 11 is connected with driving motor 7;

[0029] The output end of driving motor 7 is installed with driving wheel 12, and driving wheel 12 is engaged with outer gear ring 11;

[0030] It needs to be explained that driving motor 7 is installed on fixed support (not shown), and the output end of driving motor 7 rotates to drive driving wheel 12 to rotate, driving wheel 12 drives outer gear ring 11 to rotate in turn, and outer gear ring 11 drives inner gear ring 10 inside to rotate, and each driven wheel 4 engaged with inner gear ring 10 rotates, and driven wheel 4 is fixedly connected with crushing piece 3, so that crushing piece 3 rotates in side crushing chamber 2, thereby realizing the function of driving outside discharge outlet 1 to make each crushing piece 3 rotate synchronously inside discharge outlet 1.

[0031] As Figure 4 shown, the outer wheel 5 bottom and top are evenly installed with a plurality of balls 13 along the ring, the support ring 6 bottom is provided with a rolling groove 14 matched with the ball 13, and the side of the support ring 6 away from the outer wheel 5 is fixedly connected with six side rods 15 between the discharge port 1; then the outer wheel 5 can be stably supported by the bottom and top support ring 6 when being driven to rotate by the driving motor 7, so as to maintain the stability of the rotation of the outer wheel 5.

[0032] The above has carried out the detailed description to one embodiment of the utility model, but the content described is only the preferred embodiment of the utility model, cannot be considered for limiting the implementation scope of the utility model. All equivalent changes and improvements made according to the application scope of the utility model should still belong to the patent coverage scope of the utility model.

Claims

1. A mill discharge chute arrangement for preventing blockages, comprising a discharge opening (1), characterized in that The middle part of the discharge port (1) is uniformly arranged with at least two side crushing chambers (2) along the circumferential surface, the side crushing chamber (2) is rotatably connected with a crushing piece (3), the bottom of the crushing piece (3) extends to the outside of the crushing piece (3), and a driven wheel (4) is fixedly connected, the driven wheel (4) is located outside the discharge port (1), the outer wheel piece (5) is rotatably connected between the driven wheels (4) outside, the discharge port (1) is provided with a support ring (6) at the bottom and the top of the outer wheel piece (5), the support ring (6) is rollingly connected with the adjacent side of the outer wheel piece (5), and the outer side of the outer wheel piece (5) is provided with a driving motor (7), the driving motor (7) is used for cooperating with the outer wheel piece (5) to drive each crushing piece (3) to rotate.

2. A mill draw-off chute arrangement according to claim 1, characterized in that The side crushing chamber (2) is in communication with the inside of the discharge port (1) on the inside of the discharge port (1), and the outside is conical, the axis of the side crushing chamber (2) is located on the outside of the discharge port (1), the crushing piece (3) is conical as a whole, and the shape of the outside is matched with the inner wall of the side crushing chamber (2).

3. A mill draw-off chute arrangement according to claim 1, characterized in that The crushing piece (3) is uniformly provided with a plurality of crushing teeth (8) along the circumferential surface, and a middle shaft (9) is fixedly connected in the middle part, the middle shaft (9) penetrates the bottom of the side crushing chamber (2) and is fixedly connected with the driven wheel (4), the axis line of the middle shaft (9) is collinear with the axis of the side crushing chamber (2), and the inner side of the crushing piece (3) is away from the adjacent side wall inside the discharge port (1).

4. A mill draw-off chute arrangement according to claim 1, characterized in that The outer wheel piece (5) comprises an inner gear ring (10) engaged with the driven wheel (4), and an outer gear ring (11) is arranged outside the inner gear ring (10), and the outer gear ring (11) is connected with the driving motor (7).

5. A mill draw-off chute arrangement according to claim 4, characterised in that, The output end of the driving motor (7) is provided with a driving wheel (12), and the driving wheel (12) is engaged with the outer gear ring (11).

6. A mill draw-off chute arrangement according to claim 1, characterized in that The bottom and the top of the outer wheel piece (5) are uniformly provided with a plurality of rolling balls (13) along the ring direction, the bottom of the support ring (6) is provided with a rolling groove (14), the rolling groove (14) is rollingly connected with the rolling ball (13), and a plurality of side rods (15) are fixedly connected between the side away from the outer wheel piece (5) of the support ring (6) and the discharge port (1).

Images