CN214500046U

CN214500046U - Special mechanical sealing device for ore sand roller discharge valve

Info

Publication number: CN214500046U
Application number: CN202120536443.8U
Authority: CN
Inventors: 雷学鹏; 陈思宏; 张强; 覃薛宇; 蒙重宝; 梁飘; 钮德明
Original assignee: Guangxi Institute of Occupational
Current assignee: Guangxi Institute of Occupational
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-10-26
Anticipated expiration: 2031-03-15

Abstract

A special mechanical sealing device for a discharge valve of an ore sand roller comprises a mechanical sealing mounting seat, a movable ring, a roller, a spring, a static ring, a compressed air joint and a discharge valve shell. The mechanical seal mounting seat is connected with the discharge valve shell and is connected with the discharge valve shell by adopting gasket seal and bolts; the movable rings are integrated and arranged on the surface of the roller and fixed by screws; the spring is arranged in the mounting hole seat, the static ring is arranged in the mounting groove, and under the action of the spring force, the end faces of the static ring and the dynamic ring are tightly attached together to block a dust leakage channel; the compressed air joint is installed on the mechanical seal installation seat, and with the slot intercommunication in rotating ring and quiet ring contact surface top, compressed air can directly blow at rotating ring and quiet ring contact position, because the disc axial plane of rotating ring is a conical surface, the dust is cleaned by compressed air to in getting back to the bleeder valve along with the air current, prevent that the dust from leaking. It has the advantages of complete functions, reliable operation and low cost.

Description

Special mechanical sealing device for ore sand roller discharge valve

Technical Field

The utility model belongs to prevent dust pollution's environmental protection field relates to the technique and the equipment that prevent dust pollution in containing dust ore sand is stored, is carried, specifically is a special mechanical seal device of ore sand cylinder bleeder valve.

Background

In industrial production, the ore containing dust as raw material is stored in a storage tank and transported to the next process according to the technological requirements. The conveying of ore sand must be carried in the airtight space, can solve the dust and fly upward thoroughly, the old and difficult problem that the powdered ore drifts away and loses. The above object is thus achieved by the ore being transported in a closed rotary drum, but the sealing between the rotary drum and the discharge valve constitutes a key proposition of this concept. Aiming at the proposition, a special mechanical sealing device for a discharge valve of a sand roller is designed.

The design concept is innovated at home and abroad, and a special mechanical sealing device for the ore sand roller discharge valve, which has a simple structure, is reliable in operation and is low in price and is publicly reported in related documents, is not found up to now.

Disclosure of Invention

The application aims to provide the special mechanical sealing device for the ore sand roller discharge valve, which has the advantages of simple structure, reliable operation and low price.

The utility model discloses a realize like this, a special mechanical seal device of ore sand cylinder bleeder valve comprises mechanical seal mount pad, rotating ring, cylinder, spring, quiet ring, compressed air joint, bleeder valve casing, characterized by: the movable ring is a part split into two halves, belongs to an integrally-processed part, and is integrally installed on the surface of the roller and fixed by screws; the shaft surface of the disc of the movable ring is a conical surface, the left side and the right side of the disc are cylinders, the right side part passes through the discharging valve shell, and the left side part passes through the mechanical seal mounting seat; a static ring mounting groove is formed in the inner side of the mechanical seal mounting seat, a mounting hole seat with 16 springs is formed in the bottom of the static ring mounting groove, a groove is formed above the contact surface of the moving ring and the static ring for compressed air to blow on the contact part of the moving ring and the static ring, and the mechanical seal mounting seat is connected with the discharge valve shell and is connected with the discharge valve shell through gasket sealing and bolts; the spring is arranged in the mounting hole seat, the static ring is arranged in the mounting groove, and under the action of the spring force, the end faces of the static ring and the dynamic ring are tightly attached together; the compressed air joint is arranged on the mechanical seal mounting seat, is connected by threads and is communicated with a groove above the contact surface of the moving ring and the static ring.

The static ring is a part split into two halves, and belongs to a part for integral processing and split use; the joints are connected by pins to prevent loosening and dislocation; the static ring is made of polytetrafluoroethylene.

The mechanical seal mounting seat is a part split into two halves, and belongs to a part which is integrally processed and used in split mode; the mechanical seal mounting seat is connected with the discharge valve shell, and the split lines are staggered and not on the same line during mounting.

Functional and operational instructions: the mechanical seal mounting seat is connected with the discharge valve shell by adopting a bolt; the movable rings are integrated and arranged on the surface of the roller and fixed by screws; the spring is arranged in the mounting hole seat, the static ring is arranged in the mounting groove, and under the action of the spring force, the end faces of the static ring and the dynamic ring are tightly attached together to block a dust leakage channel; the rotary drum has low rotating speed, the dynamic ring and the static ring are not greatly abraded, particularly, the static ring is made of polytetrafluoroethylene, so that the rotary drum has the advantages of self lubrication and wear resistance, and accessories can be replaced by new accessories in the repair period, so that the safe operation of a unit can be ensured; the compressed air connects and installs on the mechanical seal mount pad, and the slot intercommunication above rotating ring and quiet ring contact surface, and compressed air can directly blow at rotating ring and quiet ring contact position, because the disc axial plane of rotating ring is a conical surface, and the dust is cleaned totally by compressed air, prevents in the dust gets into rotating ring and quiet ring contact surface, and in the discharge valve was got back to along with the air current to the dust, prevented that the dust from leaking.

The utility model has the advantages that:

1. the sealing effect is good: and the mechanical seal and the air seal are adopted, and double seal is adopted, so that dust cannot leak out of the valve.

2. The operation is reliable: the rotary drum has low rotating speed, the dynamic ring and the static ring are not greatly abraded, particularly, polytetrafluoroethylene is selected as the material of the static ring, the rotary drum has the advantages of self-lubrication and wear resistance, and the accessory can be replaced in the repair period, so that the safe operation of the unit can be ensured.

3. The price is cheap: the special mechanical sealing device for the ore sand roller discharge valve is ingenious in design, simple in structure and low in price and practical in each part.

Drawings

Fig. 1 is a schematic structural diagram of a special mechanical sealing device for a discharge valve of a sand roller.

As shown in figure 1, the special mechanical sealing device for the discharge valve of the ore sand roller comprises a mechanical sealing mounting seat 1, a movable ring 2, a roller 3, a spring 4, a static ring 5, a compressed air joint 6 and a discharge valve shell 7.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, a special mechanical sealing device for a discharge valve of a sand drum is composed of a mechanical sealing mounting seat 1, a movable ring 2, a drum 3, a spring 4, a stationary ring 5, a compressed air joint 6 and a discharge valve shell 7, and is characterized in that: the movable ring 2 is a part split into two halves, belongs to an integrally-processed and split part, and is integrally installed on the surface of the roller 3 and fixed by screws; the axial surface of the disc of the movable ring 2 is a conical surface, the left side and the right side of the disc are cylinders, the right side part passes through the discharge valve shell 7, and the left side part passes through the mechanical seal mounting seat 1; a static ring 5 mounting groove is formed in the inner side of the mechanical seal mounting seat 1, a mounting hole seat with 16 springs 4 is formed in the bottom of the static ring 5 mounting groove, a groove is formed above the contact surface of the moving ring 2 and the static ring 5 for compressed air to blow at the contact part of the moving ring 2 and the static ring 5, and the mechanical seal mounting seat 1 is connected with a discharge valve shell 7 and is connected with the discharge valve shell through gasket sealing and bolts; the spring 4 is arranged in the mounting hole seat, the static ring 5 is arranged in the mounting groove, and the static ring 5 and the end surface of the dynamic ring 2 are tightly attached together under the action of the spring force; the compressed air joint 6 is arranged on the mechanical seal mounting seat 1, is connected by threads and is communicated with a groove above the contact surface of the moving ring 2 and the static ring 5.

Claims

1. The utility model provides a special mechanical seal device of ore sand cylinder bleeder valve, comprises mechanical seal mount pad (1), rotating ring (2), cylinder (3), spring (4), quiet ring (5), compressed air joint (6), ejection of compact valve casing (7), characterized by: the movable ring (2) is a part split into two halves, belongs to an integrally processed and split part, and is integrally installed on the surface of the roller (3) and fixed by screws; the disc axial surface of the movable ring (2) is a conical surface, the left side and the right side of the disc are cylinders, the right side part passes through the discharging valve shell (7), and the left side part passes through the mechanical seal mounting seat (1); a static ring (5) mounting groove is formed in the inner side of the mechanical seal mounting seat (1), a mounting hole seat with 16 springs (4) is formed in the bottom of the static ring (5) mounting groove, a groove is formed above the contact surface of the moving ring (2) and the static ring (5) for compressed air to blow at the contact part of the moving ring (2) and the static ring (5), the mechanical seal mounting seat (1) is connected with a discharge valve shell (7) and is connected with the discharge valve shell through gasket sealing and bolts; the spring (4) is arranged in the mounting hole seat, the static ring (5) is arranged in the mounting groove, and the static ring (5) is tightly attached to the end surface of the dynamic ring (2) under the action of the spring force; the compressed air joint (6) is arranged on the mechanical seal mounting seat (1), is connected by threads and is communicated with a groove above the contact surface of the moving ring (2) and the static ring (5).

2. The special mechanical sealing device for the discharge valve of the ore roller according to claim 1, characterized in that: the static ring (5) is a part split into two halves, and belongs to a part which is integrally processed and used in split; the joints are connected by pins to prevent loosening and dislocation; the static ring (5) is made of polytetrafluoroethylene.

3. The special mechanical sealing device for the discharge valve of the ore roller according to claim 1, characterized in that: the mechanical seal mounting seat (1) is a part split into two halves, and belongs to a part which is integrally processed and used in a split mode; the mechanical seal mounting seat (1) is connected with the discharging valve shell (7), and the split lines are staggered and not on the same line during mounting.