CN111560787A - Slag remover - Google Patents

Abstract

The invention discloses a slag remover which comprises a rotary cylinder body (1), a pulp inlet connecting pipe (2), an excellent pulp connecting pipe (3) and a driving mechanism (4), wherein the rotary cylinder body (1) is of a conical structure, the top end of the rotary cylinder body (1) is an inlet end, the bottom end of the rotary cylinder body (1) is a slag discharge outlet end, one end of the pulp inlet connecting pipe (2) is communicated with the top end of the rotary cylinder body (1), one end of the excellent pulp connecting pipe (3) is communicated with the middle part of the bottom end of the rotary cylinder body (1), a slag discharge through hole (11) is formed in the edge of the bottom of the rotary cylinder body (1), and the driving mechanism (4) can drive the rotary cylinder body (1. The slag remover can remove heavy impurities and light impurities with high efficiency and low energy consumption. Meanwhile, the efficiency of removing impurities can be adjusted according to the quality requirement and the yield requirement of the final product, so that the loss is reduced, and the energy consumption is reduced.

Description

Slag remover

technical field

The invention relates to the field of papermaking equipment, in particular to a slag remover.

Background technique

In the process of pulping production, because the raw materials and chemicals are mixed with particulate impurities, it not only directly affects the quality of the finished pulp or paper. Moreover, the damaged equipment hinders the normal production, so the pulp must be treated with slag removal and purification to meet the needs of product quality and normal production. The sand removal purification is based on the difference in density between impurities and fibers in the pulp, using the principle of centrifugal separation, The process of separating the denser impurities from the fibers under the action of centrifugal force. The impurity separator used in the existing pulp and papermaking adopts the centrifugal principle to pump the impurity-containing slurry into a vertical and fixed conical cylinder with a large upper diameter and a gradually reduced lower diameter to utilize impurities and slurry. The density and specific gravity are different, so do gravity separation.

Waste paper in waste paper can be roughly divided into the following three aspects: 1. Waste impurities with a density or relative density greater than water, such as metal glass blocks, gravel, etc., or less than water, such as foam, plastic and other waste impurities, can be removed by The slag remover is used to remove impurities, and the impurities such as stickies whose relative density is very close to water are difficult to remove with the slag remover. 2. The size range is relatively large, as large as 8 to 10 mm, and as small as five microns or smaller, which can be removed with a slag remover. 3. Deformable soft impurities such as stickies and other impurities, such impurities will be deformed by force, and are easy to pass through the sieve holes or sieve slits, but because their density is sufficiently different from water, and the particle size is in the slag remover. Within the removal range, it can still be removed with a slag remover.

According to the difference of removing impurities, it can be divided into positive slag remover, reverse slag remover, through-flow slag remover, and light and heavy slag remover.

The positive slag remover can only effectively remove waste impurities with relatively high density, such as gravel, glass, sand, screws, staples, and metal foil impurities. The slag remover is used in paper and pulp production lines at home and abroad. It is very common and is an indispensable purification equipment. When the slurry enters the top of the slag remover from the feed port at a certain angle in the tangential direction, a vortex will be generated, and the slurry together with impurities will extend along the inner wall of the slag remover in a spiral direction. Moving in the direction of the slag discharge port, the vortex of the slurry flow generates centrifugal force, so that impurities with a density heavier than water are thrown to the inner wall of the cylinder. The port is discharged to the slag discharge port, and the purified pulp moves upward along the center and is discharged from the top good pulp port.

The reverse slag cleaner is a kind of purification equipment for removing light impurities. Its structural principle is similar to that of the forward slag cleaner, but it is opposite to the forward slag cleaner in use. It will discharge fibers and light impurities from the bottom of the lower cone. Then it is discharged from the upper central pipe, and the purpose is to remove impurities lighter than fibers in the slurry, such as foam, plastic fragments, styrene, wax and other light impurities.

The through-flow slag remover is also a light impurity slag remover, which is a variant of the reverse slag remover. The difference between it and the reverse slag remover is that the good slurry port is not located at the upper part of the slag remover, but at the bottom of the lower cone. .

The light and heavy impurity slag remover is a mixed product of the forward and reverse slag removers. There are two concentric good slurry pipes and light impurity discharge pipes on the top of the slag remover. The heavy impurities are the same as the forward slag remover. The bottom is removed. After the fibers and light impurities are raised from the inner vortex to the upper part of the slag remover, the light impurities are discharged from the central light impurities pipe, and the good pulp is discharged from the annular space of the two concentric pipe sleeves.

SUMMARY OF THE INVENTION

In order to improve the slag removal efficiency, the present invention provides a slag remover, which can remove heavy impurities and light impurities with high efficiency and low energy consumption. At the same time, the efficiency of removing impurities can be adjusted according to the quality requirements and yield requirements of the final product, thereby reducing losses and reducing energy consumption.

The technical scheme adopted by the present invention to solve the technical problem is as follows: a slag remover, comprising a rotating cylinder, a slurry feeding connecting pipe, a good slurry connecting pipe and a driving mechanism, the rotating cylinder is in a conical structure, and the top of the rotating cylinder is It is the inlet end, the bottom end of the rotating cylinder is the slag discharge outlet, the inner diameter of the top of the rotating cylinder is smaller than the inner diameter of the bottom end of the rotating cylinder, one end of the slurry feeding connection pipe is connected to the middle of the top of the rotating cylinder, and the upper end of the good slurry connecting pipe is connected to the top of the rotating cylinder. One end communicates with the middle of the bottom end of the rotating cylinder, the bottom edge of the rotating cylinder is provided with a slag discharge through hole, the driving mechanism can drive the rotating cylinder to rotate, and the rotational speed of the rotating cylinder can be adjusted.

The rotating cylinder is covered with an outer casing, a closed annular cavity is formed between the outer casing and the rotating cylinder, the interior of the rotating cylinder is communicated with the annular cavity through a slag discharge through hole, and the outer casing is connected with a discharge Slag pipe.

All the rotating cylinders are located in the outer casing, along the direction of the center line of the rotating cylinder, the outer casing contains the first casing segment and the second casing segment connected in sequence, the bottom of the rotating cylinder is located in the first casing segment, the second casing The segment has a cone-shaped structure.

One end of the slurry feeding connecting pipe is fixedly connected with the top of the rotating cylinder, one end of the second shell section is sleeved outside the slurry feeding connecting pipe, and one end of the second shell section is connected in a rotary and sealing manner with the slurry feeding connecting pipe; One end is fixedly connected with the middle of the bottom end of the rotating cylinder, and one end of the first shell segment is sleeved outside the good slurry connecting pipe.

The inner diameter of one end of the second housing segment is smaller than the inner diameter of the other end of the second housing segment, the rotating cylinder is in a horizontal state, the upper part of the first housing segment is provided with a sight glass for observing the interior of the first housing segment, and one end of the first housing segment is connected to the The good slurry connecting pipe is rotated and sealed.

A light slag discharge pipe is set inside the good slurry connecting pipe. The outer diameter of the light slag discharge pipe is smaller than the inner diameter of the good slurry connecting pipe. outside.

The other end of the good pulp connection pipe is provided with a good pulp discharge pipe, and the other end of the good pulp connection pipe is connected with the good pulp discharge pipe in a rotary and sealing manner. out of the discharge pipe.

One end of the good pulp connecting pipe is provided with a receiving section, the receiving section is a conical cylindrical structure, the receiving section is located in the rotating cylinder, the bottom end of the receiving section faces the top of the rotating cylinder, and the bottom end of the receiving section is located at one end of the light slag discharge pipe and the bottom end of the rotating cylinder.

The slag remover also includes a slurry feeding guide part, the slurry feeding guide part includes a conical section and a support rod arranged in sequence, the conical section is sleeved in the rotating cylinder, and the center line of the conical section is connected to the rotating cylinder. The center lines are coincident, the top end of the conical section faces the bottom end of the rotating cylinder, the support rod is sleeved in the slurry feed connection pipe, and the outer diameter of the support rod is smaller than the inner diameter of the slurry feed connection pipe.

The other end of the slurry feeding connecting pipe is provided with a slurry feeding pipe, and the other end of the slurry feeding connecting pipe is connected with the slurry feeding pipe in a rotary and sealing manner.

The beneficial effects of the present invention are:

The relative centrifugal force is greater than that of the traditional slag remover, and the rotational speed can be adjusted according to the needs of users to form different centrifugal forces, so that the amount and type of impurities discharged can be controlled and the loss of fibers can be reduced.

The residence time is long, and the separation of impurities is easy. The residence time of the slag remover of the present invention can reach 7 seconds or more, which is more than 3 times that of the ordinary slag remover, which is conducive to the full separation of impurities and improves the removal efficiency of impurities.

The heavy impurities of the traditional slag remover rotate rapidly on the inner wall, and have high-speed relative motion with the inner wall of the slag remover. Wear and tear of equipment and prolong service life.

The heavy impurities of the traditional slag remover rotate rapidly on the inner wall, and there is a high-speed relative motion with the inner wall of the slag remover, so the speed gradually decreases, increasing the energy consumption, but this slag remover does not have such consumption.

One-stage or two-stage arrangement is adopted, which consumes less kinetic energy than the traditional 4-5 stage arrangement of the slag remover, and reduces the installation area and installation cost at the same time;

The relative centrifugal force is adjustable and much larger than the traditional slag remover, so a higher slurry concentration can be used under the same removal efficiency, which reduces the kinetic energy;

The traditional slag remover has an opposite reaction force to the heavy impurities relative to the slag discharge direction, and it needs to consume excess energy for slag discharge. The device saves twice the energy consumption of slag discharge.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

FIG. 1 is a front view of the slag cleaner according to the present invention.

Fig. 2 is a left side view of the slag cleaner according to the present invention.

FIG. 3 is a top view of the slag cleaner according to the present invention.

FIG. 4 is a perspective view of the slag cleaner according to the present invention.

Fig. 5 is a top view of the parts of the outer casing, the slurry feed connection pipe and the good slurry connection pipe.

FIG. 6 is a cross-sectional view taken along the A-A direction in FIG. 5 .

FIG. 7 is a cross-sectional view taken along the direction B-B in FIG. 6 .

1. Rotating cylinder; 2. Feeding connection pipe; 3. Good pulp connection; 4. Driving mechanism; 5. External shell; 6. Light slag discharge pipe; 7. Feeding guide part;

11. Slag discharge through hole;

21. Feed pipe;

31. Good pulp discharge pipe; 32. Storage section;

41, bearing; 42, transmission pulley; 43, motor;

51, slag discharge pipe; 52, first shell segment; 53, second shell segment; 54, observation mirror; 55, bracket;

71. Conical segment; 72. Support rod.

Detailed ways

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

A slag remover includes a rotating cylinder 1, a slurry feeding connection pipe 2, a good slurry connecting pipe 3 and a driving mechanism 4. The rotating cylinder 1 has a conical structure, and the top of the rotating cylinder 1 is the inlet end. The bottom end of 1 is the slag discharge outlet end, the inner diameter of the top of the rotating cylinder 1 is smaller than the inner diameter of the bottom end of the rotating cylinder 1, one end of the slurry feeding connection pipe 2 is connected to the middle of the top of the rotating cylinder 1, and one end of the good slurry connecting pipe 3 It is communicated with the middle of the bottom end of the rotating cylinder 1, the bottom edge of the rotating cylinder 1 is provided with a slag discharge through hole 11, and the driving mechanism 4 can drive the rotating cylinder 1 to rotate (the center line of the rotating cylinder 1 is shaft rotation), and the rotational speed of the rotating cylinder 1 can be adjusted as required, as shown in Figures 1 to 7 .

In this embodiment, the slag remover may be of a horizontal structure, that is, the center line of the rotating cylinder 1 is approximately horizontal. The good pulp connection pipe 3, the rotating cylinder 1 and the pulp feeding connection pipe 2 are arranged in sequence along the axial direction of the rotary cylinder 1. The lines overlap, the left end of the slurry feed connection pipe 2 is connected with the top of the rotating cylinder 1, the right end of the good slurry connection pipe 3 is communicated with the middle of the bottom end of the rotary cylinder 1, and the slurry feed connection pipe 2 and the good slurry connection pipe 3 are both connected to the rotating cylinder. The cylinder body 1 is fixedly connected (eg, welded), and when the rotary cylinder body 1 rotates, the slurry feed connection pipe 2 and the good pulp connection pipe 3 both rotate synchronously with the rotary cylinder body 1, as shown in FIG. 6 .

In this embodiment, the rotating cylinder 1 is covered with an outer casing 5 , a closed annular cavity is formed between the outer casing 5 and the rotating cylinder 1 , and the interior of the rotating cylinder 1 communicates with the rotating cylinder 1 through the slag discharge through hole 11 . The annular cavity is connected, that is, the heavy slag and pulp inside the rotating cylinder 1 can enter the annular cavity through the slag discharge through hole 11 . The bottom edge of the rotating cylinder 1 is provided with a plurality of slag discharge through holes 11 , and the outer casing 5 is connected with a slag discharge pipe 51 . The mixed liquid of heavy slag and pulp in the annular cavity can be discharged through the slag discharge pipe 51 . When the rotating cylinder 1 rotates, the outer casing 5 does not rotate and move.

In this embodiment, the rotating cylinder 1 is all located in the outer casing 5 , that is, the axial length of the outer casing 5 is greater than the axial length of the rotating cylinder 1 . Along the direction of the center line of the rotating cylinder 1, the outer casing 5 includes a first casing segment 52 and a second casing segment 53 connected in sequence. The inner diameter of the first casing segment 52 is larger than the inner diameter of the second casing segment 53. The rotating cylinder 1 The bottom of the casing is located in the first casing section 52, and the second casing section 53 has a conical cylindrical structure, as shown in FIG. 6 and FIG. 7 . The top end of the second housing segment 53 faces the same as the top end of the rotating cylinder 1 , and the bottom end of the second housing segment 53 faces the same as the bottom end of the rotating cylinder 1 .

In this embodiment, the left end of the slurry feeding connecting pipe 2 is in fixed communication with the middle of the top of the rotating cylinder 1 , the top end of the second shell section 53 is sleeved outside the slurry feeding connecting pipe 2 , and the top end of the second shell section 53 is connected to the feeding section 53 . The slurry connecting pipe 2 is connected in a rotary and sealing manner; the right end of the good slurry connecting pipe 3 is fixedly connected to the middle of the bottom end of the rotating cylinder 1 , and the left end of the first casing section 52 is sleeved outside the good slurry connecting pipe 3. The first casing section 52 The left end is connected with the good slurry connecting pipe 3 in a rotational and sealing manner. The right end of the first housing segment 52 is sealedly connected to the bottom end of the second housing segment 53 , as shown in FIG. 6 .

In this embodiment, as shown in FIG. 6 , the left end of the second housing segment 53 is the bottom end, the right end of the second housing segment 53 is the top end, and the inner diameter of the top end of the second housing segment 53 is smaller than the inner diameter of the bottom end of the second housing segment 53 , the left end of the rotating cylinder 1 is the bottom end, and the right end of the rotating cylinder 1 is the top. The upper part of the first shell segment 52 is provided with an observation mirror 54 for observing the inside of the first shell segment 52 , and the good slurry connecting pipe 3 is connected to the lower part of the first shell segment 52 .

In this embodiment, a light slag discharge pipe 6 is sleeved inside the good pulp connection pipe 3, the outer diameter of the light slag discharge pipe 6 is smaller than the inner diameter of the good pulp connection pipe 3, and the center line of the light slag discharge pipe 6 is connected with the good pulp The center lines of the pipes 3 overlap, and a ring-shaped good slurry discharge flow channel is formed between the light slag discharge pipe 6 and the good slurry connection pipe 3. The right end of the light slag discharge pipe 6 is located in the rotating cylinder 1, and the left end of the light slag discharge pipe 6 It is located outside the good pulp connecting pipe 3.

In this embodiment, a good pulp discharge pipe 31 is provided outside the left end of the good pulp connection pipe 3, and the left end of the good pulp connection pipe 3 is connected with the good pulp discharge pipe 31 in a rotational sealing manner (for example, existing rotary seals such as skeleton oil seals can be used) ), the good pulp discharge pipe 31 is a 90-degree elbow structure, and the left end of the light slag discharge pipe 6 is located outside the good pulp discharge pipe 31 . A bracket 55 is provided between the good pulp connection pipe 3 and the good pulp discharge pipe 31 .

In this embodiment, a receiving section 32 is provided at the right end of the high-quality pulp connecting pipe 3 , the receiving section 32 has a conical cylindrical structure, the receiving section 32 is located in the rotating cylinder 1 , and the diameter of the bottom end of the receiving section 32 is larger than The diameter of the top end, the receiving section 32 is sleeved outside the light slag discharge pipe 6, the bottom end of the receiving section 32 faces the top end of the rotating cylinder 1, the top end of the receiving section 32 faces the bottom end of the rotating cylinder 1, and the bottom end of the receiving section 32 It is located between the right end of the light slag discharge pipe 6 and the bottom end of the rotating cylinder 1 , as shown in FIG. 6 .

In this embodiment, the slag remover further includes a slurry feeding guide member 7, and the slurry feeding guide member 7 includes a conical section 71 and a support rod 72 arranged in sequence, and the conical section 71 is sleeved on the rotating cylinder 1 . Inside, the center line of the conical segment 71 coincides with the center line of the rotating cylinder 1, the top end of the conical segment 71 faces the bottom end of the rotating cylinder 1, the bottom end of the conical segment 71 faces the top end of the rotating cylinder 1, and the cone The diameter of the bottom end of the shaped section 71 is smaller than the diameter of the top end of the rotating cylinder 1. The support rod 72 is sleeved in the slurry feeding connection pipe 2. An annular slurry feeding channel is formed between the slurry connecting pipes 2 . There is a distance between the top end of the conical section 71 and the light slag discharge pipe 6, and when the rotating cylinder 1 rotates, the slurry feeding guide member 7 will not rotate and move.

In this embodiment, a slurry feeding pipe 21 is provided outside the right end of the slurry feeding connecting pipe 2 . There is a bracket 55 , a bearing 41 is provided on the outer shell of the slurry feeding connecting pipe 2 , and a bearing 41 and a transmission pulley 42 are provided on the outer shell of the good slurry connecting pipe 3 . The driving mechanism 4 includes a motor 43, and the motor 43 drives the fine pulp connection pipe 3, the rotating cylinder 1 and the pulp feed connection pipe 2 to rotate through the transmission belt and the transmission pulley 42 in turn. In addition, the slag remover may be of a vertical structure, that is, the centerline of the rotating cylinder 1 is substantially upright.

The working process of the slag remover is described below.

The pulp slurry enters the rotating cylinder 1 through the pulp feeding pipe 21 and the pulp feeding connecting pipe 2 in sequence, and the driving mechanism 4 drives the good pulp connecting pipe 3, the rotating cylinder 1 and the pulp feeding connecting pipe 2 to rotate. In the rotating cylinder 1, the heavy slag converges to the bottom edge of the rotating cylinder 1, and is discharged through the slag discharge through hole 11 and the slag discharge pipe 51 in sequence; The discharge pipe 6 is discharged; the good pulp converges to the right end of the good pulp connection pipe 3 and is discharged through the good pulp connection pipe 3 and the good pulp discharge pipe 31 in sequence.

Specifically, the slurry enters the slag remover from the slurry feeding pipe, and is evenly distributed to the inner wall of the front part of the slag remover cylinder in a conical shape at the front of the slurry feeding guide member 7. Since the rotating cylinder 1 is driven by a motor and a belt Drive high-speed rotation, the speed is 500rpm-1500rpm, so the slurry rotates with the rotating cylinder 1 to generate centrifugal force, the relative centrifugal force is RCF=w2*R/g, according to the diameter of the rotating cylinder 1 and the rotation speed Different, its relative centrifugal force is roughly between 98g-1200g, the diameter of the cylinder can be designed to be 500mm-1000mm according to the flow rate of the slurry to remove impurities, and the rotation speed can be determined according to the type of impurities that the producer needs to remove and the heavy impurities to be removed. To achieve the cleanliness, the motor is adjusted by the frequency converter, so that under the action of centrifugal force of different sizes, the separation effect of heavy impurities is controllable and adjustable. That is to achieve the cleanliness that the producer wants to achieve, reduce fiber loss, and save kinetic energy consumption. Under the action of centrifugal force, the heavy impurities follow the rotation of the rotating cylinder 1 at the inner wall of the cylinder and rotate. The centrifugal force is vertical and outward. Due to the inclined structure of the rotating cylinder 1, a small diameter extending from the cylinder to the larger will be generated. At the same time, due to the movement and pressure difference of the slurry pumped into the slag remover from the slurry inlet to the slag discharge port and the good slurry port, the heavy impurities will move to the slag discharge port and move to At the point with the largest diameter, the slag discharge opening at this place discharges the cylinder body in a tangential direction and enters between the outer cover and the cylinder body. To the wear-resistant lining plate at the slag discharge of the outer cover, so that the slag remover is discharged from the slag discharge port of heavy impurities. The slag discharge of heavy impurities can adopt continuous slag discharge method and intermittent slag discharge method. The intermittent slag discharge method is composed of two upper and lower automatic valves and a slag collection chamber between the two valves. During normal operation, the upper valve opens the lower valve. Close, when the slag collecting chamber is full of heavy slag, close the upper valve and then open the lower valve to discharge the heavy slag.

The good pulp will move towards the rear of the cleaner near the center area with the movement of the stock flow, and then it will be collected by the good stock collection port and then discharged from the good stock port to the cleaner. Under the action of centrifugal force, the light impurities are concentrated to the very center, and a stable central column with light impurities, air and water is formed in the center along the diversion forming device, and then discharged by the light slag collection pipe in the central area of the good pulp side. Slag.

The pulp will be separated from light and heavy impurities through the above process, so that the good pulp can reach the cleanliness required by the producer, and then be processed by the follow-up system and then used to produce qualified paper.

The above descriptions are only specific embodiments of the present invention, and cannot limit the scope of implementation of the invention. Therefore, the replacement of equivalent components, or the equivalent changes and modifications made according to the scope of the patent protection of the present invention should still be covered by this patent. category. In addition, technical features and technical features, technical features and technical solutions, and technical solutions and technical solutions in the present invention can be freely combined and used.

Claims (10)

1. A slag remover, characterized in that, the slag remover comprises a rotating cylinder (1), a slurry feeding connecting pipe (2), a good slurry connecting pipe (3) and a drive mechanism (4), and the rotating cylinder (1) It has a conical structure, the top of the rotating cylinder (1) is the inlet end, the bottom end of the rotating cylinder (1) is the slag discharge outlet, and the inner diameter of the top of the rotating cylinder (1) is smaller than that of the rotating cylinder (1). ) the inner diameter of the bottom end, one end of the slurry feeding connection pipe (2) is connected with the top middle of the rotating cylinder (1), one end of the good slurry connecting pipe (3) is connected with the bottom middle of the rotating cylinder (1), and the rotating cylinder The bottom edge of the body (1) is provided with a slag discharge through hole (11), the driving mechanism (4) can drive the rotating cylinder (1) to rotate, and the rotational speed of the rotating cylinder (1) can be adjusted. 2. The slag remover according to claim 1, characterized in that an outer casing (5) is provided on the outer casing of the rotating cylinder (1), and a seal is formed between the outer casing (5) and the rotating cylinder (1). The inside of the rotating cylinder (1) is communicated with the annular cavity through a slag discharge through hole (11), and a slag discharge pipe (51) is connected to the outer casing (5). 3. The slag remover according to claim 2, characterized in that, the rotating cylinder (1) is all located in the outer casing (5), and along the centerline direction of the rotating cylinder (1), the outer casing (5) ) contains a first housing segment (52) and a second housing segment (53) connected in sequence, the bottom of the rotating cylinder (1) is located in the first housing segment (52), and the second housing segment (53) is in the shape of a cone structure. 4. The slag remover according to claim 3, characterized in that one end of the slurry feeding connecting pipe (2) is in fixed communication with the top end of the rotating cylinder (1), and one end of the second shell segment (53) is sleeved on the top of the rotating cylinder (1). Outside the slurry feeding connecting pipe (2), one end of the second casing section (53) is connected in a rotational and sealing manner with the slurry feeding connecting pipe (2); In fixed communication, one end of the first casing segment (52) is sleeved outside the good slurry connecting pipe (3). 5. The slag remover according to claim 4, characterized in that the inner diameter of one end of the second housing segment (53) is smaller than the inner diameter of the other end of the second housing segment (53), and the rotating cylinder (1) is in a horizontal state, The upper part of the first shell segment (52) is provided with an observation mirror (54) for observing the inside of the first shell segment (52), and the good slurry connecting pipe (3) is connected with one end of the first shell segment (52) in a rotational and sealing manner. 6. The slag remover according to claim 1, characterized in that, a light slag discharge pipe (6) is sleeved inside the good pulp connection pipe (3), and the outer diameter of the light slag discharge pipe (6) is smaller than the good pulp connection The inner diameter of the pipe (3), one end of the light slag discharge pipe (6) is located in the rotating cylinder (1), and the other end of the light slag discharge pipe (6) is located outside the good slurry connecting pipe (3). 7. The slag remover according to claim 6, characterized in that, the other end of the good slurry connecting pipe (3) is provided with a good slurry discharge pipe (31), and the other end of the good slurry connecting pipe (3) is connected with the good slurry The pulp discharge pipe (31) is connected in a rotary and sealed manner, the good pulp discharge pipe (31) is of a bent pipe structure, and the other end of the light slag discharge pipe (6) is located outside the good pulp discharge pipe (31). 8 . The slag remover according to claim 6 , wherein a receiving section ( 32 ) is provided at one end of the good slurry connecting pipe ( 3 ), and the receiving section ( 32 ) is a conical structure, and the receiving section ( 32 ) Located in the rotating cylinder (1), the bottom end of the receiving section (32) faces the top of the rotating cylinder (1), and the bottom end of the receiving section (32) is located at one end of the light slag discharge pipe (6) and the rotating cylinder ( 1) between the bottom ends. 9. The slag remover according to claim 1, characterized in that, the slag remover further comprises a slurry feeding guide part (7), and the slurry feeding guide part (7) comprises conical sections (71) arranged in sequence ) and the support rod (72), the conical segment (71) is sleeved in the rotating cylinder (1), the centerline of the conical segment (71) coincides with the centerline of the rotating cylinder (1), and the conical segment ( The top end of 71) faces the bottom end of the rotating cylinder (1), the support rod (72) is sleeved in the slurry feeding connecting pipe (2), and the outer diameter of the supporting rod (72) is smaller than the diameter of the supporting rod (72) and the slurry feeding connecting pipe (2). the inside diameter of. 10. The slag remover according to claim 1, characterized in that a slurry feeding pipe (21) is provided outside the other end of the slurry feeding connecting pipe (2), and the other end of the slurry feeding connecting pipe (2) is connected to the slurry feeding pipe (2). The pipe (21) is connected in a rotary seal, the slurry feeding connecting pipe (2) is provided with a bearing (41) on the outer shell, and the good slurry connecting pipe (3) is provided with a bearing (41) and a transmission pulley (42) on the outer shell.

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