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CN-122006863-A - Pulverizing device and process for recycling tar residues

CN122006863ACN 122006863 ACN122006863 ACN 122006863ACN-122006863-A

Abstract

The invention relates to the technical field of tar residue separation, in particular to a crushing device and a process for recycling tar residues, wherein the crushing device comprises a crushing bin, a motor arranged on the crushing bin, a driving shaft rotationally connected to the vertical middle line of the crushing bin and a cutter head detachably arranged on the driving shaft, an upper screen and a lower screen are detachably arranged in the crushing bin, a shaft seat is detachably arranged in the crushing bin, a first scraping component and a second scraping component are rotationally connected to the upper end and the lower end of the shaft seat respectively, the first scraping component rotates according to a preset speed V 2 , and the second scraping component rotates according to a preset speed V 3 . The equipment purchasing cost is reduced, the problems of unstable operation and short service life of a driving machine in a high-temperature and high-humidity environment are avoided, and the equipment reliability is greatly improved.

Inventors

  • ZHENG JINLING
  • JIN YUFENG

Assignees

  • 山东荷风工业科技有限公司

Dates

Publication Date
20260512
Application Date
20260409

Claims (10)

  1. 1. The crushing device for recycling the tar slag comprises a crushing bin (1), a slag inlet (101) arranged on one side of the crushing bin (1) and a slag outlet (102) arranged on the other side of the crushing bin (1), and is characterized by further comprising a motor (2) arranged on the crushing bin (1), a driving shaft (201) rotatably connected to the vertical middle line of the crushing bin (1) and a cutter disc (3) detachably arranged on the driving shaft (201), wherein the driving shaft (201) is connected with the output end of the motor (2), and the motor (2) drives the cutter disc (3) to rotate at a preset speed V1 through the driving shaft (201); an upper screen (401) and a lower screen (402) are sequentially and detachably arranged in the crushing bin (1) from top to bottom, a plurality of supports (7) which are radially distributed and a shaft seat (5) which is positioned at a radiation center point are detachably arranged in the crushing bin (1), the shaft seat (5) is coated on the outer side of a driving shaft (201) and the central axes of the two are overlapped, and a first scraping component and a second scraping component are respectively and rotatably connected to the upper end and the lower end of the shaft seat (5); An upper linkage assembly (501) and a lower linkage assembly (502) are installed in the shaft seat (5), the output end of the upper linkage assembly (501) is connected with the input end of the first scraping assembly, the output end of the lower linkage assembly (502) is connected with the input end of the second scraping assembly, the driving shaft (201) drives the first scraping assembly to rotate on the upper surface of the upper screen (401) according to a preset speed V2 through the upper linkage assembly (501), and the driving shaft (201) drives the second scraping assembly to rotate on the upper surface of the lower screen (402) according to a preset speed V3 through the lower linkage assembly (502), wherein V1 is more than V3 and V2 and V3 are opposite in direction.
  2. 2. The pulverizing device for recycling tar residue according to claim 1, wherein the driving shaft (201) comprises a shaft core with one end connected with the output end of the motor (2) and a driving disc (202) coaxially arranged on the shaft core, and the driving disc (202) has a gear structure; The shaft seat (5) is rotationally connected with a transmission bevel gear (503), and the transmission bevel gear (503) is simultaneously connected with the upper linkage assembly (501) and the lower linkage assembly (502) and transmits the power of the upper linkage assembly (501) to the lower linkage assembly (502).
  3. 3. The device for recycling and reusing tar residues according to claim 2, wherein the upper linkage assembly (501) comprises a linkage flat gear (5011) rotatably connected in the shaft seat (5), a first bevel gear (5012) fixedly connected with one side of the linkage flat gear (5011) in a coaxial manner, and a first flat gear (5013) fixedly connected with the other side of the linkage flat gear (5011), wherein the linkage flat gear (5011) is meshed with the driving disc (202), the first bevel gear (5012) is meshed with the driving bevel gear (503), the first flat gear (5013) is connected with the input end of the first scraping assembly, and when the driving shaft (201) rotates, the linkage flat gear (5011), the first bevel gear (5012) and the first flat gear (5013) are driven to rotate through the driving disc (202).
  4. 4. The device for recycling and reusing tar residues according to claim 3, wherein the lower linkage assembly (502) comprises a secondary bevel gear (5021) rotatably connected in the shaft seat (5) and a secondary flat gear (5022) coaxially and fixedly connected to one side of the secondary bevel gear (5021), the secondary bevel gear (5021) is meshed with the transmission bevel gear (503), the secondary flat gear (5022) is connected with the input end of the secondary scraping assembly, and when the primary bevel gear (5012) rotates, the secondary bevel gear (5021) and the secondary flat gear (5022) are driven to rotate through the transmission bevel gear (503).
  5. 5. The device for recycling and reusing tar residues according to claim 1, wherein a heater (504) is detachably arranged in the shaft seat (5), the heater (504) comprises a heating tube (5041) with the diameter of phi 12-16mm, and the heating tube (5041) heats the inside of the smashing bin (1) to a preset temperature K1.
  6. 6. The device for recycling and reusing tar residues according to claim 3, wherein the first scraping assembly comprises an upper shaft head (601) rotatably connected to the upper end of the shaft seat (5), and a plurality of upper scrapers (6011) and upper connecting plates (6012) distributed in an array around the upper shaft head (601), the upper shaft head (601) penetrates through the middle of the upper screen (401), the upper scrapers (6011) and the upper connecting plates (6012) are in one-to-one correspondence, the upper connecting plates (6012) are fixedly connected to the upper ends of the upper scrapers (6011), and a gap between the upper scrapers (6011) and the upper screen (401) is 1mm-2mm; A chute (6013) is arranged between the upper scraping plate (6011) and the corresponding upper connecting plate (6012), the chute (6013) gradually reduces in width from the center of the crushing bin (1) to the edge extending direction, and the widest part of the chute (6013) is 1cm-3cm and the narrowest part of the chute is 0.2cm-0.6cm; An upper toothed ring (6014) is coaxially arranged in the upper shaft head (601), a first flat gear (5013) is meshed with the upper toothed ring (6014), and when the first flat gear (5013) rotates, the upper shaft head (601) is driven to rotate according to a preset speed V2 through the upper toothed ring (6014).
  7. 7. The device for recycling and reusing tar residues according to claim 4, wherein the second scraping and sweeping assembly comprises a lower shaft head (602) rotatably connected to the lower end of the shaft seat (5), a plurality of lower connecting plates (6021) distributed in an array around the lower shaft head (602), a splayed frame (6022) fixedly connected to the lower end of each lower connecting plate (6021) and bristles (6023) arranged at the lower end of each splayed frame (6022), the splayed frames (6022) are positioned on the central radiation line of the lower screen (402), and the bristles (6023) are in contact with the upper surface of the lower screen (402); The lower screen (402) forms three annular areas from the center to the edge, namely an inner net section, a middle net section and an outer net section, wherein the height difference between the eight-shaped frame (6022) and the middle net section is D1, and the height difference between the eight-shaped frame (6022) and the inner net section and the outer net section is D2, wherein D1 is more than D2; the lower shaft head (602) is internally and coaxially provided with a lower toothed ring (6024), the second flat gear (5022) is meshed with the lower toothed ring (6024), and when the second flat gear (5022) rotates, the lower shaft head (602) is driven to rotate according to a preset speed V3 through the lower toothed ring (6024).
  8. 8. The device for recycling and reusing tar residues according to claim 7, wherein a vibrator (6025) is installed on the lower connecting plate (6021), a rubber ball (6026) is installed on the output end of the vibrator (6025), the rubber ball (6026) is located between the eight-shaped frame (6022) and the middle net section, and the vibrator (6025) is used for driving the rubber ball (6026) to vibrate according to a preset frequency.
  9. 9. The device for recycling and reusing tar residues according to claim 8, wherein rubber strips (6027) are arranged at the joint of the bristles (6023) and the splayed frame (6022), and the bristles impact the lower screen (402) and the rubber strips (6027) in a reciprocating manner when the rubber balls (6026) vibrate.
  10. 10. The tar residue recycling process is characterized by adopting the crushing device for recycling tar residue according to claim 1, and comprising the following steps: S1, a mixture of large-block tar residues, ammonia water and tar which are separated through pretreatment enters a crushing bin (1) from a residue inlet (101), a motor (2) drives a cutter disc (3) to rotate at a speed of V1 through a driving shaft (201), and the large-block tar residues are crushed into fine-particle tar residues with granularity meeting the requirement; S2, when the driving shaft (201) rotates, power is respectively transmitted to the first scraping component and the second scraping component through the upper linkage component (501) and the lower linkage component (502), the first scraping component and the second scraping component rotate at the speed of V2 and V3 on the upper surface of the upper screen (401) and the upper surface of the lower screen (402), the rotation directions of the first scraping component and the second scraping component are opposite, and V3 is more than V2; S3, enabling crushed tar residues to pass through an upper screen (401) and enter a region between a lower screen (402) and the upper screen (401), and enabling the crushed tar residues to further collide and rub into smaller particles under the stirring of a second scraping assembly so as to pass through the lower screen (402); And S4, finally discharging the tar residues passing through the lower screen (402) from the slag outlet (102) into a slag box, and waiting for transporting and blending coal.

Description

Pulverizing device and process for recycling tar residues Technical Field The invention relates to the technical field of tar residue separation, in particular to a crushing device and process for recycling tar residue. Background In the coking industry, coke oven gas is cooled in a gas collecting tube and a primary cooler, and then high-boiling-point organic components are distributed to be condensed to form coal tar. In the process, coal dust carried by coal gas, coke powder, free carbon generated by pyrolysis at the top of a carbonization chamber and porous impurities introduced by cleaning operation of a riser and a gas collecting pipe are mixed into a coal tar system and are aggregated into aggregates with different sizes, and the aggregates are industrially defined as tar residues. At present, a mechanized clarifying device is generally adopted by a coking enterprise to realize the separation operation of coal tar and tar residues, the tar residues obtained by separation are transported to a coal preparation section through a conveying system and are used as secondary raw materials to participate in a coal blending coking process, and the secondary raw materials are finally converted into products such as coke, coal tar and coke oven gas through collaborative pyrolysis, so that the recycling and environmental-friendly treatment of the tar residues are realized. In the step of crushing treatment of tar residues, the crushed materials meeting the requirement of specified particle size are subjected to classified screening through a screen, and the particles meeting the particle size standard are naturally discharged through the screen holes by means of gravity. In order to ensure screening efficiency and avoid hardening or blocking phenomenon caused by accumulation of materials on a screen surface, a scraping mechanism is generally required to be configured to synchronously clean the upper surface of the screen, so that the materials are promoted to pass through the screen holes rapidly. However, the existing scraping device is controlled by an independent driving motor, and the driving mechanism is directly installed inside the crushing bin. Because of the severe working condition environment of high temperature and high humidity in the crushing bin, the operation stability and the service life of the driving motor are obviously and negatively affected. Meanwhile, the cooperative control of the multiple driving devices increases the design complexity of an electrical system, so that the investment cost of the devices is increased, the energy consumption is increased, and the technical trend of the modern industrial equipment to be integrated and energy-saving is contrary. Based on the technical bottleneck, development of a novel device capable of realizing synchronous control of scraping and sweeping of a screen by utilizing a main driving force of crushing tar residues is needed, the problems of stacking, hardening, blocking and the like of materials on the surface of the screen are effectively solved, and the operation reliability and the energy efficiency level of equipment are improved. Disclosure of Invention In order to solve the problems that tar residues are easy to accumulate and block on a screen during recycling and crushing, and a control device of a conventional scraping device is difficult to integrate in a crusher. The technical scheme includes that the crushing device for recycling tar residues comprises a crushing bin, a slag inlet arranged on one side of the crushing bin, a slag outlet arranged on the other side of the crushing bin, a motor arranged on the crushing bin, a driving shaft rotationally connected to the vertical middle line of the crushing bin (connected with the crushing bin through a shaft sleeve) and a cutter head detachably arranged on the driving shaft (provided with a plurality of cutter heads with straight-line bevels), wherein the driving shaft is connected with the output end of the motor, the motor drives the cutter head to rotate according to a preset speed V 1 through the driving shaft, an upper screen and a lower screen (the aperture of the upper screen is preferably 5.0mm, the aperture of the lower screen is preferably 4.0 mm) are sequentially detachably arranged in the crushing bin, a plurality of supports which are radially distributed and shaft seats which are positioned at radiation center points are respectively arranged in the crushing bin, the shaft seats are wrapped on the outer sides of the driving shaft and are overlapped through the central axes, an upper end and a first scraping assembly and a second scraping assembly are rotationally connected to the upper end of the shaft seat, an upper linkage assembly and a lower linkage assembly are arranged in the shaft seat, the output end of the upper assembly is connected with the first scraping assembly through the driving shaft and the lower linkage assembly according to the preset speed V3224, the uppe