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CN-224211956-U - Wear-resistant auxiliary dust blowing device for tin smelting pneumatic conveying system

CN224211956UCN 224211956 UCN224211956 UCN 224211956UCN-224211956-U

Abstract

The utility model discloses a wear-resistant auxiliary dust blowing device for a tin smelting pneumatic conveying system, which comprises an air inlet installation tube, a carbon steel protection outer sleeve, a ceramic inner spray tube and a ceramic outer spray tube, wherein the air inlet installation tube is fixedly arranged on an air pump tank body, one end of the air inlet installation tube is a compressed air inlet, the other end of the air inlet installation tube stretches into the air pump tank body, the carbon steel protection outer sleeve is positioned in the air pump tank body, one end of the carbon steel protection outer sleeve is detachably connected with the other end of the air inlet installation tube, a long-strip-shaped air outlet hole is formed in the tube wall of the carbon steel protection outer sleeve along the length direction of the carbon steel protection outer sleeve, one end of the ceramic inner spray tube is in butt joint and communicated with the other end of the air inlet installation tube, and a plurality of air holes are formed in the tube wall of the ceramic inner spray tube along the length direction of the carbon steel inner spray tube and are aligned with the positions of the long-strip-shaped air outlet hole. The device has the advantages of scour resistance, long service life and low maintenance cost.

Inventors

  • CHEN KUN
  • BAI FAN
  • PU LI
  • YANG ZHI
  • LI CHUN

Assignees

  • 云南锡业股份有限公司锡业分公司

Dates

Publication Date
20260508
Application Date
20250530

Claims (8)

  1. 1. A wear-resisting type auxiliary dust blowing device for tin smelting pneumatic conveying system, characterized by comprising: The air inlet installation tube (1) is fixedly arranged on the air pump tank body (100), one end of the air inlet installation tube (1) is a compressed air inlet, and the other end of the air inlet installation tube extends into the air pump tank body (100); The air pump comprises an air pump tank body (100), a carbon steel protection outer sleeve (2), a long strip-shaped air outlet hole (21) and a connecting rod, wherein the carbon steel protection outer sleeve (2) is positioned in the air pump tank body (100), one end of the carbon steel protection outer sleeve (2) is detachably connected with the other end of the air inlet installation pipe (1), and the long strip-shaped air outlet hole (21) is formed in the pipe wall of the carbon steel protection outer sleeve (2) along the length direction of the pipe wall; The ceramic inner spray pipe (3), the ceramic inner spray pipe (3) is coaxially arranged in the carbon steel protection outer sleeve (2), one end of the ceramic inner spray pipe (3) is in butt joint and communication with the other end of the air inlet installation pipe (1), a plurality of air injection holes (31) are formed in the pipe wall of the ceramic inner spray pipe (3) along the length direction of the pipe wall, and the air injection holes (31) are aligned with the positions of the strip-shaped air outlet holes (21).
  2. 2. The wear-resistant auxiliary dust blowing device for a tin smelting pneumatic conveying system according to claim 1, wherein the strip-shaped air outlet holes (21) are three air outlet holes which are arranged at an angle of 30 degrees, a plurality of air outlet holes (31) are arranged in a row, three rows of air outlet holes (31) are arranged at an angle of 30 degrees, and the three rows of air outlet holes (31) are respectively aligned with the three strip-shaped air outlet holes (21).
  3. 3. The wear-resistant auxiliary dust blowing device for the tin smelting pneumatic conveying system according to claim 1, wherein a flange (101) is arranged at the other end of the air inlet installation tube (1), an external thread (22) is arranged on the outer wall of one end of the carbon steel protection outer sleeve (2), the wear-resistant auxiliary dust blowing device further comprises a lock nut (4) sleeved on the air inlet installation tube (1), the lock nut (4) is in threaded connection with the external thread (22), and a stop step (41) on the lock nut (4) is in press fit with the flange (101).
  4. 4. The wear-resistant auxiliary dust blowing device for the tin smelting pneumatic conveying system according to claim 1, wherein a sealing ring mounting groove (23) is formed in the inner wall of the carbon steel protection outer sleeve (2) close to one end of the carbon steel protection outer sleeve, a sealing ring (5) is embedded in the sealing ring mounting groove (23), and an inner ring of the sealing ring (5) is in tight sealing contact with the outer pipe wall of the ceramic inner spray pipe (3).
  5. 5. The wear-resistant auxiliary dust blowing device for the tin smelting pneumatic conveying system according to claim 1, wherein the other end of the ceramic inner spray pipe (3) is closed, the other end of the carbon steel protective outer sleeve (2) is closed, a threaded hole (24) is formed in the carbon steel protective outer sleeve, a jacking bolt (6) is screwed on the threaded hole (24), and the jacking bolt (6) is in jacking contact with the other end of the ceramic inner spray pipe (3).
  6. 6. The wear-resistant auxiliary dust blowing device for the tin smelting pneumatic conveying system according to claim 5, wherein a silica gel protection pad (7) is arranged between the other end of the ceramic inner spray pipe (3) and the other end of the carbon steel protection outer sleeve (2), the jacking bolts (6) are in jacking contact with the other end of the ceramic inner spray pipe (3) through the silica gel protection pad (7), and the peripheral wall of the silica gel protection pad (7) is in sealing contact with the inner pipe wall of the carbon steel protection outer sleeve (2).
  7. 7. The wear-resistant auxiliary dust blowing device for the tin smelting pneumatic conveying system according to claim 1, wherein a mounting flange (8) is welded on the air inlet mounting tube (1), and the mounting flange (8) is fixedly connected with an assembling flange (1001) on the air pump tank body (100).
  8. 8. A wear-resistant auxiliary dust blowing device for a tin smelting pneumatic conveying system according to claim 1, wherein the air inlet installation tube (1) comprises a 90-degree bent steel tube (11) and a 55-degree bent steel tube (12), one end of the 90-degree bent steel tube (11) is a compressed air inlet, the other end of the 90-degree bent steel tube is fixed to and communicated with one end of the 55-degree bent steel tube (12), and a flange (101) is arranged at the other end of the 55-degree bent steel tube (12).

Description

Wear-resistant auxiliary dust blowing device for tin smelting pneumatic conveying system Technical Field The utility model relates to the technical field of metallurgical equipment, in particular to a wear-resistant auxiliary dust blowing device for a tin smelting pneumatic conveying system. Background In the crude tin smelting process, generated tin-containing smoke dust is required to be conveyed to a designated position through a pneumatic conveying system after being recovered. In the prior art, an air pump system with a conical tank body is adopted, and 6 carbon steel air supplementing spray pipes are arranged inside and used for blowing off deposited smoke dust, so that the problem that the tank body is blocked to influence the conveying of tin smoke dust is avoided. However, since tin dust has strong mechanical scouring under the drive of 0.7MPa compressed air, the conventional carbon steel dust blowing pipe has the following defects: 1. The damage of pipe wall scour causes functional failure, causes smoke deposition and blockage, has an average service life of only 25 days, and the frequent replacement of the carbon steel dust blowing pipe influences production continuity. 2. The integral structure can not partially replace damaged parts, and the maintenance cost is high. Therefore, how to provide a wear-resistant auxiliary dust blowing device for a tin smelting pneumatic conveying system, which is resistant to flushing, long in service life, low in maintenance cost and capable of reducing the blockage rate of a tank body, is a problem to be solved by a person skilled in the art. Disclosure of utility model In view of the above, the utility model provides a wear-resistant auxiliary dust blowing device for a tin smelting pneumatic conveying system, which has the advantages of scouring resistance, long service life, low maintenance cost and capability of reducing the blockage rate of a tank body. In order to achieve the above purpose, the present utility model adopts the following technical scheme: a wear-resisting type auxiliary dust blowing device for tin smelting pneumatic conveying system includes: The air inlet installation tube is fixedly arranged on the air pump tank body, one end of the air inlet installation tube is a compressed air inlet, and the other end of the air inlet installation tube extends into the air pump tank body; The carbon steel protection outer sleeve is positioned in the air pump tank body, one end of the carbon steel protection outer sleeve is detachably connected with the other end of the air inlet installation tube, and a long strip-shaped air outlet hole is formed in the tube wall of the carbon steel protection outer sleeve along the length direction of the tube wall; The ceramic inner spray pipe is coaxially arranged in the carbon steel protection outer sleeve, one end of the ceramic inner spray pipe is in butt joint and communication with the other end of the air inlet installation pipe, a plurality of air injection holes are formed in the pipe wall of the ceramic inner spray pipe along the length direction of the pipe wall, and the air injection holes are aligned with the positions of the strip-shaped air outlet holes. Compared with the prior art, the utility model discloses a wear-resistant auxiliary dust blowing device for a tin smelting pneumatic conveying system, which adopts the combined design of a carbon steel protection outer sleeve and a ceramic inner spray pipe, so that the strength of the ceramic inner spray pipe is ensured, the ceramic inner spray pipe is not easy to break during operation under the protection of the carbon steel protection outer sleeve, the service life of the ceramic inner spray pipe is prolonged, the device uses the ceramic inner spray pipe to replace a traditional steel pipe, the Vickers hardness of the ceramic is more than or equal to 1500HV, the wear resistance of the dust blowing device is improved, the technical problem that the traditional carbon steel pipe is easy to wash and damage is solved, in addition, the ceramic inner spray pipe can be independently taken out from the carbon steel protection outer sleeve, the ceramic inner spray pipe is convenient to be independently replaced, and the maintenance time is reduced by 60%. Therefore, the device has the advantages of scouring resistance, long service life and low maintenance cost. Further, the rectangular shape venthole is the three that are 30 angle arrangements, and a plurality of the fumarole is the range, and has three rows, and three rows the fumarole is 30 angle arrangements, three rows the fumarole with three rectangular shape venthole is aligned respectively and is arranged. The air pump tank has the beneficial effects that the air flow sprayed out through the ceramic inner spray pipe is three-dimensional multi-angle air flow, so that the coverage rate of the air flow in the air pump tank body reaches 92%, and the blockage rate of the air pump tank body is reduced from