CN-224221469-U - Air bag pushing type ball mill feeding sealing device

Abstract

The utility model belongs to the technical field of ball mill equipment, and particularly relates to an air bag pushing type ball mill feeding sealing device which comprises a rotary sealing ring fixedly connected with a ball mill cylinder, a fixed sealing ring sleeved on a ball mill elbow and connected with the outer side wall of the elbow, and a feeding pipe. The utility model prolongs the replacement period of the feeding seal, improves the operation rate of the ball mill, avoids the occurrence of equipment accidents and avoids environmental pollution.

Inventors

• YANG YONG
• WANG FENG
• Zhu Enkuan
• ZHANG WEI
• TANG NAIGANG
• MU HONGYU
• GAO SHUO

Assignees

• 鞍钢集团矿业有限公司

Dates

Publication Date

20260512

Application Date

20250423

Claims (3)

1. 1. The feeding sealing device of the air bag propelling ball mill comprises a rotary sealing ring fixedly connected with a ball mill cylinder, a fixed sealing ring sleeved on a ball mill elbow and connected with the outer side wall of the elbow, and a feeding pipe, and is characterized in that the rotary sealing ring is a bowl-shaped sealing ring with a protruding outer edge and a recessed inner edge, the fixed sealing ring is a convex bowl-shaped sealing ring coaxially arranged towards a dynamic ring inner sinking surface, An inflatable air bag is arranged in an accommodating space formed by slotting the back working surface of the fixed sealing ring, the inflatable air bag is connected with an air inlet pipe, and a pressure gauge and a valve are arranged on the air inlet pipe.
2. 2. The feed sealing device of the air bag propelling type ball mill according to claim 1, wherein a positioning ring is arranged at the feeding pipe to limit the axial displacement of the fixed sealing ring.
3. 3. The feed sealing device of the air bag pushing type ball mill according to claim 2, wherein jackscrews are arranged on the positioning ring.

Description

Air bag pushing type ball mill feeding sealing device Technical Field The utility model belongs to the technical field of ball mill equipment, and particularly relates to a feeding sealing device of an air bag propelling ball mill. Background The wet ball mill is fed with water and material to the barrel of the ball mill via the feeding unit to realize ore grinding. In daily production, slurry leakage at the feeding position of a wet ball mill is a common problem mainly because the installation position of the feeding seal of the ball mill is relatively fixed, the working surfaces of two sealing rings are in close contact during installation, and the working surfaces of the sealing rings are continuously worn to generate gaps during the running process of the ball mill, so that slurry leakage phenomenon begins to occur. If the slurry leakage at the feeding position of the ball mill is serious, the leaked slurry can influence the continuous operation of the ball mill cylinder, and meanwhile, the environmental sanitation in a workshop is influenced, and the cleaning is required to be carried out by frequent manpower. Disclosure of Invention The utility model aims to manufacture a sealing piece of a feed inlet of a wet ball mill, improve the defects of the original design, prolong the service cycle of the sealing piece, save the cost of spare parts, increase the operation rate of equipment and increase the yield. The aim of the utility model is realized by the following technical scheme: the utility model relates to a feeding sealing device of an air bag propelling ball mill, which comprises a rotary sealing ring fixedly connected with a ball mill cylinder, a fixed sealing ring sleeved on a ball mill elbow and connected with the outer side wall of the elbow, and a feeding pipe, and is characterized in that the rotary sealing ring is a bowl-shaped sealing ring with a protruding outer edge and a recessed inner edge, the fixed sealing ring is a convex bowl-shaped sealing ring coaxially arranged towards the inner concave surface of a movable ring, An inflatable air bag is arranged in an accommodating space formed by slotting the back working surface of the fixed sealing ring, the inflatable air bag is connected with an air inlet pipe, and a pressure gauge and a valve are arranged on the air inlet pipe. And a positioning ring is arranged at the feeding pipe to limit the axial displacement of the fixed sealing ring. And jackscrews are arranged on the positioning rings. The utility model has the advantages that: (1) The feeding sealing device of the air bag propelling ball mill prolongs the replacement period of feeding sealing; (2) The feeding sealing device of the air bag propelling ball mill improves the operation rate of the ball mill; (3) The feeding sealing device of the air bag propelling ball mill avoids equipment accidents; (4) The feeding sealing device of the air bag propelling ball mill avoids polluting the environment. Drawings Fig. 1 is a schematic structural view of the present utility model. Detailed Description Specific embodiments of the present utility model are further described below with reference to the accompanying drawings. As shown in figure 1, the feeding sealing device of the air bag propelling ball mill comprises a rotary sealing ring 1 fixedly connected with a ball mill cylinder, a fixed sealing ring 2 sleeved on a ball mill elbow and connected with the outer side wall of the elbow, and a feeding pipe 8, wherein the rotary sealing ring 1 is a bowl-shaped sealing ring with a protruding outer edge and a concave inner edge, the fixed sealing ring 2 is a convex bowl-shaped sealing ring coaxially arranged towards the inner concave surface of a movable ring, An inflatable air bag 3 is arranged in an accommodating space formed by grooving the back working surface of the fixed sealing ring 2, the inflatable air bag 3 is connected with an air inlet pipe 6, and a pressure gauge 4 and a valve 5 are arranged on the air inlet pipe 6. The feeding pipe 8 is provided with a positioning ring 9 for limiting the axial displacement of the fixed sealing ring 2. The jackscrews 7 are arranged on the positioning ring 9. The specific technical scheme is as follows: 1. The rotary sealing ring 1 fixedly connected with the ball mill cylinder body is designed into a bowl-shaped sealing ring with a protruding outer edge and a recessed inner edge, and the working thickness of the sealing ring is increased. 2. The fixed sealing ring 2 sleeved on the ball mill elbow and connected with the outer side wall of the elbow is designed to coaxially arrange a convex bowl-shaped sealing ring towards the inner concave surface of the moving ring. The sealing mode is changed from the original linear contact to the cambered surface contact, so that the sealing working area is enlarged. 3. The back working surface of the fixed sealing ring 2 is grooved, an accommodating space is formed inside, an inflatable air bag 3 is installed in