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Pre-closed valve suitable for pneumatic transmission system

A technology of pneumatic conveying system and closing valve, which is used in conveyors, conveying bulk materials, lifting valves, etc., can solve problems such as wear and tear, and achieve the effects of low operating cost, low maintenance workload, and high air supply ratio.

Pending Publication Date: 2018-08-17
岳波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a pre-closing valve suitable for the pneumatic conveying system. The pre-closing valve of the present invention is installed above the feed valve of the system, which solves the problem of wear and tear caused by the granular material sandwiched between the cone body and the sealing ring of the feed valve.

Method used

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  • Pre-closed valve suitable for pneumatic transmission system
  • Pre-closed valve suitable for pneumatic transmission system

Examples

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Embodiment 1

[0020] Such as figure 1 As shown in 2, the pre-closing valve of the present invention includes 2 semicircular valve bodies 1 connected into one body by bolts 9, the circular valve body 1 is connected with the valve seat 2 by bolts, and the bearing 5 is installed at the joint between the circular valve body 1 and the valve seat 2 And sealing ring 7, rotating shaft 3 enters in the circular valve body 1 through valve seat 2, bearing 5, sealing ring 7, the bottom of rotating shaft 3 is provided with flip valve plate 4, and the top of rotating shaft 3 is fixedly connected with pneumatic actuator 8. The pneumatic actuator 8 is fixed to the valve seat 2 by actuator bolts 10 . The top of the rotating shaft 3 is fixedly connected to the pneumatic actuator 8. Driven by the air force, the pneumatic actuator 8 drives the flip valve plate 4 to work through the rotation of the rotating shaft 3, and controls the opening and closing of the valve and the discharge volume without manual openin...

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PUM

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Abstract

The invention discloses a pre-closed valve suitable for a pneumatic transmission system and relates to a valve. The pre-closed valve comprises two semi-circular valve bodies (1) connected integrally through a bolt (9), wherein the semi-circular valve bodies (1) are connected to a valve seat (2) through bolts; a bearing (5) and a seal ring (7) are mounted at the connection of the semi-circular valve bodies (1) and the valve seat (2); a rotary shaft (3) penetrates through the valve seat (2), the bearing (5) and the seal ring (7) and is mounted in the semi-circular valve bodies (1); a stainless steel overturning valve plate (4) is arranged at the bottom of the stainless steel rotary shaft (3); the top of the rotary shaft (3) is fixedly connected to a pneumatic executing mechanism (8); the pneumatic executing mechanism (8) is fixed to the valve seat (2) through a bolt (10); the pneumatic executing mechanism (8) is fixedly connected to the top of the rotary shaft (3), the pneumatic executing mechanism (8) is connected to the overturning valve plate (4) by rotation of the rotary shaft (3), a position detection switch is arranged on the outer side of the pneumatic executing mechanism (8),and the position detection switch is in control connection to a valve through circuit control. The pre-closed valve provided by the invention is mounted above a feeding valve, so that the pre-closedvalve is prevented from being worn as particulate materials are clamped between the cone body of the feeding valve and the seal ring.

Description

technical field [0001] The invention relates to a valve, in particular to a pre-closing valve suitable for a pneumatic conveying system. Background technique [0002] Pneumatic conveying system includes feeding device, warehouse pump, conveying pipeline, air intake device, storage and storage equipment, power air source, PLC / DCS control system, etc. [0003] During the use of the feed valve used in the pneumatic conveying system, when the warehouse pump is full and the feed valve is closed, because the blanking is still in progress, it is easy to cause granular materials to be trapped between the feed valve cone and the sealing ring, causing the feed valve to Closed laxly. Once the feed valve is not closed tightly, the compressed air entrained granular material will wear the cone of the feed valve until the feed valve cannot work normally, affecting the safe and stable operation of the pneumatic conveying system. [0004] The existing pneumatic conveying system does not ha...

Claims

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Application Information

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IPC IPC(8): F16K1/22F16K1/226F16K25/00F16K31/16F16K41/02B65G53/46
CPCF16K1/22F16K1/224F16K1/2268F16K25/005F16K31/16B65G53/4625
Inventor 岳鹏岳波
Owner 岳波