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CN-122007011-A - Quick lime activity degree sample granularity screening plant

CN122007011ACN 122007011 ACN122007011 ACN 122007011ACN-122007011-A

Abstract

The invention provides a quick lime activity degree sample granularity screening device, which relates to the technical field of quick lime screening and comprises a bracket and a screening structure, wherein the upper end of the bracket is fixedly connected with a top plate, a hopper is arranged in the top plate, the lower end of the hopper is provided with the screening structure, the screening structure comprises a frame, the frame is arranged on the hopper, a connecting plate is arranged in the bracket, the upper surface of the connecting plate is fixedly connected with a bottom frame, an auxiliary plate is arranged on the lower surface of the frame, a plurality of bolts are arranged in the auxiliary plate, the auxiliary plate is connected with the connecting plate through a plurality of bolts, a plurality of screen discs are arranged between the auxiliary plate and the bottom frame, the upper surface of each screen disc is fixedly connected with a connecting ring, and the connecting ring is matched with the screen disc above. The quick-change screening device has the advantages that quick lime can be conveniently screened, and the screening disc can be conveniently and quickly replaced.

Inventors

  • WANG CHUNSHENG
  • SUN XUN
  • GU QINGBIN
  • YANG SUMIN
  • ZHANG JIE
  • LI PENGFENG

Assignees

  • 宝山钢铁股份有限公司
  • 冬暄(上海)测控技术有限公司

Dates

Publication Date
20260512
Application Date
20260302

Claims (10)

  1. 1. The quick lime activity sample granularity screening device comprises a bracket (1) and a screening structure (4), and is characterized in that the upper end of the bracket (1) is fixedly connected with a top plate (2), a hopper (3) is arranged in the top plate (2), the screening structure (4) is arranged at the lower end of the hopper (3), the screening structure (4) comprises a frame (48), the frame (48) is arranged on the hopper (3), a connecting plate (42) is arranged in the bracket (1), the upper surface of the connecting plate (42) is fixedly connected with a bottom frame (45), an auxiliary plate (44) is arranged on the lower surface of the frame (48), a plurality of bolts (49) are arranged in the auxiliary plate (44) and the connecting plate (42), a plurality of screening discs (46) are arranged between the auxiliary plate (44) and the bottom frame (45), a connecting ring (47) is fixedly connected with the upper surface of the screening discs (46), two connecting plates (43) are fixedly connected with the upper surface of the connecting plate (43), the output end of the air cylinder (41) is fixedly connected with the frame (48).
  2. 2. The quicklime activity sample granularity screening device as claimed in claim 1, wherein the cross section of the connecting ring (47) is circular, and the connecting ring (47) is a silica gel ring.
  3. 3. A quicklime activity sample particle size screening plant as claimed in claim 1, wherein the screen tray (46) is circular in cross section and the screen tray (46) is a stainless steel tray.
  4. 4. A quick lime activity sample particle size screening device according to claim 1, wherein the lower end of the hopper (3) is in interference connection with the auxiliary plate (44), and the diameter of the lower end of the hopper (3) is smaller than that of the inner wall of the auxiliary plate (44).
  5. 5. A quick lime activity sample size screening device as claimed in claim 1, wherein a plurality of screening discs (46) are the same in size, and the number of the screening discs (46) is gradually reduced from top to bottom.
  6. 6. The quick lime activity sample granularity screening device according to claim 1, wherein the upper surface of the top plate (2) is provided with a collecting structure (5), the collecting structure (5) comprises a baffle frame (51), the baffle frame (51) is fixedly connected with the top plate (2), a butterfly valve (52) is arranged on the upper surface of the top plate (2), a connecting piece (53) is arranged at the tail end of the butterfly valve (52), the connecting piece (53) is fixedly connected with the top plate (2), a connecting pipe (54) is arranged at the lower end of the connecting piece (53), a dust removing component (55) is arranged at one end, far away from the connecting piece (53), of the connecting pipe (54), a connecting frame (56) is arranged in the bracket (1), and the dust removing component (55) is arranged on the connecting frame (56).
  7. 7. The quick lime activity sample particle size screening device according to claim 6, wherein the connecting pipe (54) is made of PVC, and the connecting pipe (54) is a corrugated pipe.
  8. 8. The quick lime activity sample granularity screening device according to claim 6, wherein an auxiliary structure (6) is arranged on the lower surface of the connecting plate (42), the auxiliary structure (6) comprises four springs (64), one ends of the four springs (64) are fixedly connected with the connecting plate (42), a round pad (65) is fixedly connected with the lower end of the spring (64), a connecting seat (63) is fixedly connected with the lower surface of the round pad (65), a fixing frame (62) is fixedly connected with the lower surface of the connecting seat (63), and a vibration component (61) is mounted on the lower surface of the connecting plate (42).
  9. 9. The quick lime activity sample granularity screening device according to claim 1, wherein a limiting rod (66) is fixedly connected to the upper surface of the round pad (65), and the limiting rod (66) is in sliding connection with the connecting plate (42).
  10. 10. The quick lime activity sample granularity screening device according to claim 9, wherein the limiting rod (66) is circular in cross section, and the spring (64) is sleeved on the arc surface of the limiting rod (66).

Description

Quick lime activity degree sample granularity screening plant Technical Field The invention relates to the technical field of quicklime screening, in particular to a quicklime activity degree sample granularity screening device. Background At present, in order to reach the standard of sulfur content of discharged flue gas in enterprises such as power plants and steelmaking, a dry desulfurization process using quicklime as an absorbent is widely used for desulfurizing the flue gas so as to reduce the sulfur content of the flue gas discharged by coal. The activity of the quicklime serving as an absorbent can directly influence the flue gas desulfurization efficiency, is an important index for identifying the quality of the quicklime, and is required to be subjected to activity detection so as to select the quicklime with high activity as the absorbent. Quicklime screening plants are commonly used to screen and classify quicklime to ensure that the particle size is satisfactory for use in different industrial applications. The main purpose of the screening process is to separate the quicklime according to the particle size, which is helpful to improve the reaction efficiency and the service performance. Aiming at the defects, the problems of low screening efficiency and unsatisfactory screening effect exist in the actual operation process of the existing quicklime sample granularity screening device. Especially for the quick lime material with certain viscosity and easy hygroscopicity, the traditional screening device is easy to cause the conditions that the materials block the screen holes and the screening is not thorough, so that quick lime samples with different granularity are mixed, the accuracy of the subsequent activity detection result is affected, and the screen disc is difficult to replace. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a quick lime activity degree sample granularity screening device. In order to achieve the aim, the quick lime activity sample granularity screening device comprises a support and a screening structure, wherein the upper end of the support is fixedly connected with a top plate, a hopper is arranged in the top plate, the screening structure is arranged at the lower end of the hopper and comprises a frame, the frame is arranged on the hopper, a connecting plate is arranged in the support, the upper surface of the connecting plate is fixedly connected with a bottom frame, an auxiliary plate is arranged on the lower surface of the frame, a plurality of bolts are arranged in the auxiliary plate, the auxiliary plate is connected with the connecting plate through a plurality of bolts, a plurality of screening discs are arranged between the auxiliary plate and the bottom frame, a connecting ring is fixedly connected with the upper surface of the screening disc, the connecting ring is matched with the screening disc above, two connecting pieces are fixedly connected with the upper surface of the connecting plate, an air cylinder is arranged on the upper surface of the connecting piece, and the output end of the air cylinder is fixedly connected with the frame. By adopting the preferred scheme, when the quicklime is required to be screened, the screen disc moves up and down in a reciprocating manner, and the quicklime is screened by utilizing the vibration of the screen disc. Wherein, close fit between the adjacent sieve tray can be ensured in the setting of go-between, avoids quick lime to leak from the gap, and accessory plate and connecting plate pass through bolted connection, have both guaranteed the steadiness of screening structure installation, are convenient for dismantle the sieve tray again at the later stage and change or clean the maintenance. The bottom frame plays a good supporting role on the screen disc, and the screen disc is prevented from shifting in the vibration process, so that the screening efficiency and the screening precision are improved. When the screen tray needs to be replaced, the starting cylinder drives the frame to move, the frame drives the auxiliary plate to move, the limit of the screen tray can be relieved after the auxiliary plate is separated from the screen tray, and then the screen tray is replaced. Preferably, the cross section of the connecting ring is circular, and the connecting ring is a silica gel ring. By adopting the preferable scheme, good elasticity and sealing performance can be provided by the silica gel material, when a plurality of screen plates are sequentially overlapped through the connecting rings, the screen plates can be closely attached, the leakage of materials from the gaps of the adjacent screen plates in the screening process is effectively prevented, and the screening accuracy and the material collecting integrity are ensured. Meanwhile, the silica gel ring can play a certain buffering role when the screen plates are vibrated or collided, so that abrasion among t