CN211497523U - Novel slag breaking machine - Google Patents

Abstract

The utility model discloses a novel slag breaking machine, which comprises a furnace body, wherein a breaking cutter tooth system is arranged in the furnace body, a material receiving port is arranged at the upper part, a discharging pipe is arranged at the bottom part, the breaking cutter tooth system comprises a movable cutter shaft, a plurality of rows of movable tooth groups and a plurality of rows of static tooth groups, and the movable cutter shaft is vertically arranged; a plurality of rows of movable tooth groups are sequentially arranged on the movable cutter shaft from top to bottom, each row of movable tooth groups comprises a plurality of movable cutter teeth, an oblique angle is formed between the tooth surface of each movable cutter tooth and the horizontal plane, and the upper row of movable cutter teeth and the lower row of movable cutter teeth are staggered in angle to form a spirally-descending slag conveying channel; a plurality of rows of static tooth groups are arranged along the inner wall of the furnace body from top to bottom in sequence, and each row of static tooth groups extends into the space between the upper row of movable tooth groups and the lower row of movable tooth groups. The utility model discloses, moving the cutter arbor and being vertical setting, moving the knife tackle and arranging for vertical, under the running state, the slag is from top to bottom realized the breakage through multilayer extrusion and cutting, has improved the disintegrating slag ability to moving the flank of tooth slope of sword tooth, from top to bottom forming propeller type's defeated sediment passageway, effectively improving the transport speed of slag.

Description

Novel slag breaking machine

Technical Field

The utility model relates to a coal chemical industry, concretely relates to novel broken sediment machine.

Background

The gasification furnace is the basic equipment of coal chemical industry, and is used for converting coal powder into basic raw materials of CO and H for manufacturing chemical products₂The gasification furnace is divided into three types of entrained flow bed, fluidized bed and fixed bed according to the flowing mode, at present, two gasification technologies of the fixed bed and the entrained flow bed are basically accepted in the industry, and the fluidized bed is rarely used.

The fixed bed gasification furnace comprises a UGI furnace, a Lurgi (Lurgi) furnace, a liquid slag discharging Lurgi (BGL) furnace and the like, wherein the Lurgi furnace applies a solid slag discharging process, particularly, ash at the bottom layer of the gasification furnace enters an ash lock through a rotating grate at the bottom of the gasification furnace, the BGL furnace adopts a liquid slag discharging process, a quenching chamber is arranged at the bottom of the gasification furnace, the pressure of the gasification furnace and the quenching chamber is changed through a program, molten slag is discharged into the quenching chamber through pressure difference, and the Lurgi furnace and the BGL furnace do not relate to slag breaking.

The entrained-flow bed process comprises two processes of coal water slurry gasification and dry powder gasification, wherein the coal water slurry gasification comprises a Texaco furnace, an E-Gas furnace and a Qinghua furnace, and the dry powder gasification comprises a Shell furnace, a GSP furnace, an aerospace furnace and the like. Most of the gasification furnaces adopting the entrained flow process adopt a slag breaker to output gasified slag.

The slag breaker is arranged between a slag outlet at the lower part of the chilling chamber of the gasification furnace and the slag lock bucket and is used for breaking slag or fallen refractory bricks to ensure smooth slag discharge and continuous operation of the gasification furnace. The main machine of the slag breaking machine consists of five parts, namely a container, a crushing cutter rest body, a shaft system, a driving mechanism and a pipeline system.

The shell is a main body part of the main machine of the slag breaker, bears all process pressure in the working process of the slag breaker, provides mounting support for other parts of the main machine, and is connected with a flange at the bottom of a chilling chamber of the gasification furnace through an upper end flange and a safety valve through a lower end flange.

Broken current broken sediment machine often adopts horizontal axis of rotation, and the sword is smashed in the installation in the axis of rotation, and axle container wall all around installs quiet tooth, smashes and has certain clearance between sword and the quiet tooth, moves the tooth and at rotatory in-process, smashes the distance of sword and quiet tooth and diminishes, will fall into the crowded bits of broken glass of material in clearance.

The slag breaker can smoothly discharge slag in the gasifier under the condition of stable temperature of the gasifier, but still has the following defects:

(1) when the quality of coal entering is poor or the furnace temperature fluctuates, a bridging phenomenon occurs after the large-sized refractory bricks fall off;

(2) during the operation of the crushing cutter, slag basically falls by gravity, and the slag conveying function is poor.

Therefore, the problems of bridging and poor slag conveying function of the conventional slag breaker are solved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to have the problem that bridging phenomenon appears, defeated sediment function is poor easily to present slag breaker.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a novel broken sediment machine, includes the furnace body, the inside broken sword tooth system that is equipped with of furnace body, upper portion are equipped with and connect the material mouth, and the bottom is equipped with the discharging pipe, broken sword tooth system includes:

the movable cutter shaft is vertically arranged in the center of the furnace body, and the bottom of the movable cutter shaft is linked with the motor;

the movable cutter comprises a plurality of rows of movable cutter groups, a plurality of groups of movable cutter groups and a plurality of slag conveying channels, wherein the movable cutter groups are sequentially arranged on the movable cutter shaft from top to bottom, each row of movable cutter groups comprises a plurality of movable cutter teeth, the movable cutter teeth are uniformly arranged along the circumferential direction of the movable cutter shaft, an oblique angle is formed between the tooth surface of each movable cutter tooth and the horizontal plane, and the upper and lower movable cutter teeth in two adjacent rows of the movable cutter groups from top to bottom are staggered by an angle to form a spirally-descending slag conveying channel;

the multi-row static tooth groups sequentially follow from top to bottom the inner wall of the furnace body, and each row of the static tooth groups extends into the upper row and the lower row between the movable tooth groups.

In another preferred embodiment, the movable tooth groups are in multiple rows, and include a rough cutting group and a fine cutting group, the rough cutting group includes N movable cutter teeth, the fine cutting group includes at least N +2 movable cutter teeth, and the interdental space of the rough cutting group is larger than that of the fine cutting group.

In another preferred embodiment, the rotating diameter of the rough cutting group is larger than that of the fine cutting group, a leak-proof gap is formed between the rough cutting group and the inner wall of the furnace body, and slag falls onto the next static tooth group from the gap between the teeth of the rough cutting group; and a cutting backflow gap is formed between the fine cutting group and the inner wall of the furnace body, slag falls down from the inter-tooth gap of the static tooth group, and the fine cutting group and the cutting backflow gap repeatedly extrude and move and then fall onto the next static tooth group from the inter-tooth gap of the fine cutting group.

In another preferred embodiment, the plurality of rows of rough cutting groups are integrally arranged above the plurality of rows of fine cutting groups, or each row of rough cutting groups and each row of fine cutting groups are arranged in an up-and-down staggered manner.

In another preferred embodiment, the movable cutter teeth are fixed by reinforcing plates, the reinforcing plates are arc-shaped sheets taking the movable cutter shaft as the center, at least one reinforcing plate is arranged, and a slag falling gap is formed between the movable cutter teeth and the reinforcing plates.

In another preferred embodiment, the reinforcing plates are fixed by connecting plates, and the connecting plates are distributed along the radial direction of the furnace body.

In another preferred embodiment, each row of the static tooth groups comprises static cutter teeth which are uniformly arranged along the circumference of the inner wall of the furnace body, and slag discharge holes which are convenient for slag to fall are formed in the static cutter teeth.

In another preferred embodiment, the motor is a servo hydraulic motor, a closed circulation oil path system is formed by a bidirectional variable reversing loop, the plunger pump and the inner cavity of the movable cutter shaft, and an overflow valve is arranged on the closed circulation oil path system.

In another preferred embodiment, the furnace body is provided with a control operation panel, and the operation control panel is provided with a manual speed regulating button and a manual reversing button.

In another preferred embodiment, the upper part of the furnace body is provided with a conical body convenient for collecting slag, the lower part of the furnace body is provided with a convex body convenient for discharging broken slag, and the other side of the discharge pipe is provided with a spare discharge pipe.

The utility model has the advantages that: the movable cutter shaft is arranged vertically, the movable cutter group is arranged vertically, in the running state, furnace slag passes through the multiple layers of movable cutter teeth and static cutter teeth from top to bottom, crushing is realized under the action of multiple layers of extrusion and cutting, the capacity of the furnace slag is improved, the tooth surfaces of the movable cutter teeth are inclined, a propeller type slag conveying channel is formed from top to bottom, the conveying speed of the furnace slag under the action of gravity and the movement of the movable cutter group in the crushing process is further improved, and the effect of rotary unloading is achieved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another embodiment of the present invention;

fig. 3 is a schematic top view of the movable cutter set of the present invention;

fig. 4 is a schematic top view of another embodiment of a movable knife group according to the present invention;

fig. 5 is a schematic top view of the stationary blade set of the present invention.

Detailed Description

The utility model discloses a novel slag breaking machine, technical personnel in the field can borrow the reference this paper content, suitably improve technological parameter and realize. It is expressly noted that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be included in the invention and it is apparent to those skilled in the art that the inventive technique can be practiced and applied by modifying or appropriately combining the teachings herein without departing from the spirit and scope of the invention.

In the present invention, unless otherwise defined, scientific and technical terms used herein have the meanings as commonly understood by one of ordinary skill in the art.

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the specific embodiments.

As shown in fig. 1 and 2, the utility model provides a pair of novel slag breaking machine, including furnace body 10, the inside broken sword tooth system that is equipped with of furnace body 10, upper portion are equipped with and connect the material mouth, and the bottom is equipped with discharging pipe 13, and broken sword tooth system is including moving sword axle 20, multirow and moving tooth group and multirow quiet tooth group. Wherein, the inner wall of furnace body 10 adopts 15CrMoR material, the anticorrosive steel of inside lining, and quiet tooth group is the stainless steel sheet that has suitable thickness with moving the tooth group, and the surface can carry out wear-resisting treatment on the surface as suitable needs, guarantees to bear great cutting force in the course of the work. If the surfaces of the movable tooth group and the static tooth group are subjected to hard alloy surfacing, the surface hardness is 55-58HRC, and materials falling between the movable tooth group and the static tooth group can be crushed in a rotating process.

The movable knife shaft 20 is vertically arranged at the center of the furnace body 10, and the bottom of the movable knife shaft is linked with the motor 21. And the two ends of the movable cutter shaft 20 are sealed by adopting packing, so that the slag breaker does not leak materials in the operation process.

The multiple rows of movable cutter groups are sequentially arranged on the movable cutter shaft 20 from top to bottom, each row of movable cutter groups comprises multiple movable cutter teeth 30, each movable cutter tooth 30 is uniformly arranged along the circumferential direction of the movable cutter shaft 20, an oblique angle is formed between the tooth surface of each movable cutter tooth 30 and the horizontal plane, and in two adjacent rows of movable cutter groups from top to bottom, the upper movable cutter teeth 30 and the lower movable cutter teeth 30 are staggered by an angle to form a spirally-descending slag conveying channel. A high-reliability shaft seal design is arranged between the movable cutter shaft 20 and the movable tooth group, and the surface of the adopted shaft sleeve is subjected to special surface treatment, wherein the hardness is more than or equal to 70 HRC.

The multiple rows of static tooth sets are sequentially arranged along the inner wall of the furnace body 10 from top to bottom, and each row of static tooth sets extends into the space between the upper row of movable tooth sets and the lower row of movable tooth sets. The static tooth group can be fixed by welding, so that the stability of the static tooth group is guaranteed, and relative action with the movable tooth group is realized, so that the slag is cut and crushed.

In a preferred embodiment, the movable teeth set includes a rough cutting set including N movable cutter teeth 30 and a fine cutting set including at least N +2 movable cutter teeth 30, and the gap between the teeth of the rough cutting set is larger than that of the fine cutting set. The gap between teeth of the rough cutting group is enlarged, so that the slag can be roughly cut preliminarily, and the oversize slag is prevented from entering the next-stage movable tooth group. And the thin tooth group is then used for carrying out the secondary cutting to less slag, improves the cutting effect, will move the tooth group in this embodiment and divide into two kinds of different structures, is convenient for rationally arrange the structure and the position of moving sword tooth 30, when improving the cutting effect, prevents that too big slag from not directly falling into on the next stage moves the tooth group through the cutting. According to different crushing requirements, 4 blades or 6 blades can be arranged on the movable cutter teeth 30 of each layer.

Further, in the above embodiment, the rotating diameter of the rough cutting group is larger than that of the fine cutting group, a leak-proof gap is formed between the rough cutting group and the inner wall of the furnace body 10, and the slag falls onto the next stage of static tooth group from the gap between the teeth of the rough cutting group and is extruded and cut by the rough cutting group and the fine cutting group. A cutting backflow gap is formed between the fine cutting group and the inner wall of the furnace body 10, and the furnace slag falls from the inter-tooth gap of the static tooth group, repeatedly extrudes and moves in the fine cutting group and the cutting backflow gap, falls from the inter-tooth gap of the fine cutting group and falls onto the next static tooth group. An anti-leakage gap is formed between the rough cutting group and the inner wall of the furnace body 10, so as to prevent the slag from falling to the next layer without cutting, and force the slag to fall only through the gap between the teeth, thereby completing the cutting. The gap between the teeth of the fine cutting group is small, so that the slag is subjected to high force during cutting and splashes or bounces, a cutting backflow gap provides a space for the slag, the fine cutting group is prevented from being clamped, and further slag crushing is completed. If the rotating diameter of the furnace body 10 is 1500mm, the container wall is made of 15CrMoR material, the thickness is 70mm, the lining is 15mm thick, 316L stainless steel plate, 5 layers of movable tooth groups are welded on the movable knife shaft 20, the maximum rotating diameter of the movable tooth groups from the 1 st layer to the 4 th layer is 970mm, and the maximum rotating diameter of the crushing knife on the 4 th layer is 720 mm. The 1 st floor, the 2 nd floor, the 3 rd floor smash the sword and move the tooth for 4, and the 4 th floor is 6 and moves the tooth, and the 5 th floor adopts 6 to move the tooth.

In a preferred embodiment, the multiple rows of rough-cut groups are integrally arranged above the multiple rows of fine-cut groups, or each row of rough-cut groups and each row of fine-cut groups are arranged in an up-and-down staggered manner. These two arrangements are shown in figures 1 and 2 respectively. In the two structures, the space between the teeth of the multiple rows of rough cutting groups can be set to different values, and the space between the teeth can be gradually reduced from top to bottom, so that the cutting effect is gradually enhanced. The space between the teeth of the fine cutting group can be set to different values, so that the slag particles can realize progressive crushing effect.

As shown in fig. 3, in a preferred embodiment, the movable knife teeth 30 are fixed by using a reinforcing plate 31, the reinforcing plate 31 is an arc-shaped blade with the movable knife shaft 20 as the center, at least one reinforcing plate 31 is provided, and a slag falling gap is formed between the movable knife teeth 30 and the reinforcing plate 31. The reinforcing plate 31 not only has the capability of preventing the deformation of the cutter teeth 30, but also can flexibly set the size of the slag falling gap, and the size of the slag falling gap is more uniform, so that the number of the cutter teeth 30 and the number and the size of the reinforcing plate 31 can be flexibly selected.

As shown in fig. 4, the reinforcing plates 31 are fixed to each other by connecting plates 50, and the connecting plates 50 are distributed in the radial direction of the furnace body 10. In the present embodiment, the reinforcing plates 31 are reinforced by the connecting plates 50, and the slag falling gap can be further adjusted to limit the size of the falling slag particles. The shape and the structure of the connecting plate 50 can be adjusted according to the needs, and the expected slag falling gap is achieved on the basis of ensuring that the movable tooth group cannot be blocked. Further, the connecting plate 50 can be arranged on the one-level or two-level movable tooth group below, slag particles are gradually reduced after the two-level or three-level movable tooth group above is cut, and the connecting plate plays a role in reinforcing and can also play a role in further crushing aiming at smaller slag.

In a preferred embodiment, as shown in fig. 5, each row of the static teeth groups comprises static cutter teeth 40 which are uniformly arranged along the circumference of the inner wall of the furnace body 10, and the static cutter teeth 40 are provided with slag discharge holes for allowing slag to fall off conveniently. Quiet sword tooth 40 produces the extrusion cutting with the friction of moving the tooth group, to the slag size of tiny particle, can directly drop from row's cinder hole, and the tiny particle slag need not discharge through the clearance between moving tooth group and the quiet tooth group, has improved the raise dust problem, has prevented the excessive breakage of tiny particle slag.

In a preferred embodiment, the motor 21 is a servo hydraulic motor, and a closed circulation oil path system is formed by the bidirectional variable reversing circuit 21, the plunger pump and the inner cavity of the movable cutter shaft 20, and is provided with an overflow valve. The slag breaking machine uses a plunger pump and a servo hydraulic motor to realize low-speed and high-torque hydraulic drive. When a slag breaker runs, if large materials are encountered, the movable gear set cannot be broken, the oil pressure of the closed circulating oil path system reaches a certain pressure, the electromagnetic directional valve controls the flow direction of hydraulic oil under the control of the PLC, the motor 21 enters a reverse rotation state, and after the motor rotates reversely for a certain time, the PLC controls the electromagnetic directional valve to control an oil path, so that the crushing cutter is rotated forwardly again. The overflow valve is used for automatically unloading when the load of the closed circulation oil way system exceeds an allowable limit so as to ensure safety. In the automatic mode, the slag breaker can realize forward and reverse operation of slag breaking teeth; the time from the pressure switch action to the reverse operation starting time can be set between 0.5s and 15s (such as factory setting of 2s), and the reverse stage can also be set between 0.5s and 15s (such as factory setting of reverse continuous 10s and reverse blocking of 2 s). After the reverse operation is finished, the driving device of the slag breaking machine automatically restores to the positive rotation direction, and when the positive rotation times and the negative rotation times exceed certain times, the slag breaking machine automatically alarms and stops.

In a preferred embodiment, the furnace body 10 is provided with a control panel, and the control panel is provided with a manual speed regulating button and a manual reversing button. The control operation panel is convenient when using, adjusts the rotational speed that moves the tooth group as required to control crushing degree, and realize reverse breakage when the card is dead, the flexibility is strong.

In a preferred embodiment, the furnace body 10 is provided at an upper portion thereof with a cone 11 for facilitating collection of slag and at a lower portion thereof with a convexity 12 for facilitating discharge of crushed slag. The conical body 11 is convenient to be connected with the slag hole of the gasification furnace, and the conical body 11 is convenient to assemble and can be matched with the slag holes of the gasification furnace with different sizes. The convex body 12 has a structure having a large storage space to prevent clogging of the slag in the tapping pipe 13. The other side of the discharge pipe 13 is provided with a spare discharge pipe for preventing blockage, and the spare discharge pipe is used for discharging slag liquid in the slag breaking machine to a slag remover below.

The utility model discloses, moving the cutter arbor and being vertical setting, moving knife tackle and arranging for vertical, under running state, the slag from top to bottom moves sword tooth and quiet sword tooth through the multilayer, realizes the breakage under the effect of multilayer extrusion and cutting, has improved the slag ability to the flank of tooth slope of moving the sword tooth forms the defeated sediment passageway of propeller type from top to bottom, has further improved the slag at crushing-process, at the conveying speed under gravity and the motion of moving the tooth tackle, reaches the effect of rotatory unloading.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a novel broken sediment machine, includes the furnace body, the inside broken sword tooth system that is equipped with of furnace body, upper portion are equipped with and connect the material mouth, and the bottom is equipped with the discharging pipe, its characterized in that, broken sword tooth system includes:

the movable cutter shaft is vertically arranged in the center of the furnace body, and the bottom of the movable cutter shaft is linked with the motor;

the movable cutter comprises a movable cutter shaft, a plurality of rows of movable cutter groups and a plurality of guide rails, wherein the movable cutter groups are sequentially arranged on the movable cutter shaft from top to bottom, each row of movable cutter groups comprises a plurality of movable cutter teeth, the movable cutter teeth are uniformly arranged along the circumferential direction of the movable cutter shaft, an oblique angle is formed between the tooth surface of each movable cutter tooth and the horizontal plane, and two rows of movable cutter groups adjacent from top to bottom are staggered in angle to form a spirally-descending slag conveying channel;

the multi-row static tooth groups sequentially follow from top to bottom the inner wall of the furnace body, and each row of the static tooth groups extends into the upper row and the lower row between the movable tooth groups.

2. The novel slag breaker according to claim 1, wherein said movable teeth group comprises a rough cutting group and a fine cutting group, said rough cutting group comprises N said movable cutter teeth, said fine cutting group comprises at least N +2 said movable cutter teeth, and the inter-tooth gap of said rough cutting group is larger than that of said fine cutting group.

3. The novel slag breaker according to claim 2, wherein the rotating diameter of the rough cutting group is larger than that of the fine cutting group, a leakage-proof gap is formed between the rough cutting group and the inner wall of the furnace body, and slag falls onto the next static tooth group from the gap between the teeth of the rough cutting group; and a cutting backflow gap is formed between the fine cutting group and the inner wall of the furnace body, slag falls down from the inter-tooth gap of the static tooth group, and the fine cutting group and the cutting backflow gap repeatedly extrude and move and then fall onto the next static tooth group from the inter-tooth gap of the fine cutting group.

4. A novel slag breaker according to claim 2, characterized in that a plurality of rows of said rough cutting groups are integrally arranged above a plurality of rows of said fine cutting groups, or each row of said rough cutting groups and each row of said fine cutting groups are arranged in a vertically staggered manner.

5. The novel slag breaker according to claim 1, characterized in that reinforcing plates are fixed between the movable cutter teeth, the reinforcing plates are arc-shaped sheets centering on the movable cutter shaft, at least one reinforcing plate is arranged, and a slag falling gap is formed between the movable cutter teeth and the reinforcing plates.

6. The novel slag breaker according to claim 5, characterized in that each reinforcing plate is fixed between each other by a connecting plate, and the connecting plates are distributed along the radial direction of the furnace body.

7. The novel slag breaker according to claim 1, wherein each row of the static tooth groups comprises static cutter teeth which are uniformly arranged along the circumference of the inner wall of the furnace body, and slag discharge holes for facilitating slag falling are formed in the static cutter teeth.

8. The novel slag crusher according to claim 1, characterized in that the motor is a servo hydraulic motor, a closed circulating oil line system is formed by a bidirectional variable reversing loop, a plunger pump and an inner cavity of the movable cutter shaft, and an overflow valve is arranged on the closed circulating oil line system.

9. The novel slag breaker according to claim 1, characterized in that a control operation panel is arranged on the furnace body, and a manual speed regulating button and a manual reversing button are arranged on the operation control panel.

10. The novel slag breaker according to claim 1, characterized in that the upper part of the furnace body is provided with a cone body convenient for collecting slag, the lower part is provided with a convex body convenient for discharging broken slag, and the other side of the discharge pipe is provided with a spare discharge pipe.

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