CN213009906U

CN213009906U - Bell valve with built-in chain wheel

Info

Publication number: CN213009906U
Application number: CN202021753652.XU
Authority: CN
Inventors: 李忠炎; 薛军; 李淙屹; 夏昇璐
Original assignee: Shanxi Zhenghe Thermoelectricity Engineering Co ltd
Current assignee: Shanxi Zhenghe Thermoelectricity Engineering Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-04-20
Anticipated expiration: 2030-08-20

Abstract

The utility model discloses a bell valve with a built-in chain wheel, relating to the technical field of furnace top charging sealing devices, comprising an upper charging barrel and a lower charging barrel, wherein a hopper is arranged between the upper charging barrel and the lower charging barrel, and a discharging opening of the hopper is closed and opened by a charging bell; the bell is connected with an external hydraulic cylinder through a pull rod, a chain and a guide chain wheel which are arranged in the valve; a hollow chain wheel box beam is transversely arranged in the upper charging barrel, a guide chain wheel II is arranged in the chain wheel box beam, the chain wheel II deviates to one side of the central line of the upper charging barrel, and the reference circle of the chain wheel II is tangent to the central line of the upper charging barrel; sprocket case roof beam bottom opening, sprocket II follow the opening and get into the sprocket case roof beam in and install, sprocket I is fixed in the feed cylinder outside through the sprocket support. The device has compact design, space saving and simple structure, is easy to manufacture and install, and solves the problem of influence of a bell pull rod and feeding equipment in the existing melting furnace feeding equipment.

Description

Bell valve with built-in chain wheel

Technical Field

The utility model relates to a furnace top charging sealing device technical field specifically is a clock valve of built-in sprocket.

Background

In the existing melting furnace top charging equipment, a bell seal type is adopted, a central bell pull rod or a chain plate generally passes through the center of a receiving hopper, a melting furnace commonly uses a charging bucket to carry out top charging, and the pull rod or the chain plate usually influences the charging equipment. The bell pull rod control system arranged on the furnace top brings the problems of large height and complex structure of furnace top equipment.

Disclosure of Invention

The utility model provides a solve above-mentioned problem, provide a bell valve of built-in sprocket.

The utility model discloses a realize through following technical scheme: the bell valve with the built-in chain wheel comprises an upper charging barrel and a lower charging barrel, wherein a hopper is installed between the upper charging barrel and the lower charging barrel, an upper end flanging of the hopper is fixed between flanges of the upper charging barrel and the lower charging barrel in a butt-clamping mode, and an inner conical surface at the lower end of the hopper is matched with an outer conical surface at the lower end of a bell. The bell is hoisted on the lower part of the hopper through a pull rod, a chain and a chain wheel II, one end of the chain is connected with the pull rod, and the other end of the chain penetrates out of the charging barrel and is connected with a piston rod of a hydraulic cylinder outside the valve through the guide of the chain wheel I and the chain wheel II. A hollow chain wheel box beam is transversely arranged in the upper charging barrel, the chain wheel II is arranged in the chain wheel box beam, the chain wheel II is arranged on one side of the central line of the upper charging barrel, and the reference circle of the chain wheel II is tangent to the central line of the bell; the lower part of the chain wheel box beam and the corresponding part of the chain wheel II protrude downwards for one section and are provided with openings at the bottom, the chain wheel II enters the chain wheel box beam from the openings to be installed, and the chain wheel I is fixed on the outer side of the upper charging barrel through a chain wheel support.

The utility model discloses a bell valve of built-in sprocket mainly drives through the pneumatic cylinder, drives the bell through chain, sprocket and pull rod and rises and descend, accomplishes closing and opening of bell valve. A hopper is arranged between an upper charging barrel and a lower charging barrel of the device, the upper end of the hopper is flanged between flanges of the upper charging barrel and the lower charging barrel and is clamped and fixed, the horizontal position of the hopper can be adjusted to be aligned with a bell, the hopper is used for receiving added materials, and when the bell is tightly attached to the hopper, the materials are blocked at the upper parts of the bell and the hopper; when the bell is opened, the bell is separated from the hopper, and the material smoothly falls down.

The lifting and descending of the charging bell are driven by a pull rod, a chain and a hydraulic cylinder, and the chain wheels guide the chain; in order to prevent the materials from contacting with the chain wheel and the chain, a hollow box girder is transversely arranged in the charging barrel, the chain wheel II is arranged in the box girder, the chain is arranged in the box girder, one end of the chain is connected with the pull rod through the chain wheel II, the other end of the chain penetrates out of the charging barrel and is connected with the hydraulic cylinder through the chain wheel I; the lower part of the chain wheel box beam and the part corresponding to the chain wheel II are downwards protruded by a section, the bottom of the chain wheel box beam is provided with an opening, the chain wheel II enters the chain wheel box beam from the opening for installation, and the downward protrusion section is used for completely covering the chain wheel II by the box beam and has a certain allowance, so that the chain wheel is not influenced by materials; the bell is hung on the lower part of the hopper by a pull rod, a chain and a chain wheel, can vertically move up and down along the central axis, and particularly can automatically center. The utility model adopts the chain transmission, and the hydraulic cylinder can be randomly arranged on the vertical plane formed by the two chain wheels outside the furnace.

The utility model discloses the specific operation does: under the closing state of the bell valve, a piston rod of the hydraulic cylinder contracts, the bell moves upwards along the central axis under the driving of the chain until contacting with the hopper, and the bell is hoisted under the pull rod and the chain and naturally droops along the central axis, so that the bell can be automatically centered and adjusted when contacting with the hopper. After the bell is closed, the falling of the materials is blocked, and meanwhile, the gas is blocked from passing through, so that the sealing effect is achieved; when needs are reinforced to the stove, the pneumatic cylinder piston rod stretches out, and the bell moves downwards along the direction of the central axis under the effect of material gravity and the self gravity of the bell, and the bell separates from the hopper, and the material smoothly falls down, and after the reinforced, the pneumatic cylinder drives the bell upward movement, seals the hopper mouth once more.

Preferably, hard alloy is respectively surfacing welded on the contact surfaces of the bell and the hopper, and sealing and wear resistance are ensured through grinding.

Preferably, the chain is an endless chain.

Preferably, the chain wheel II is installed in the chain wheel box beam through a short shaft.

Compared with the prior art the utility model discloses following beneficial effect has: the utility model provides a pair of bell valve of built-in sprocket hides material clock hoisting device's chain and pulley in hollow case roof beam, has solved among the current melting furnace charging equipment, and the material clock pull rod is to the problem of influence of charging equipment, and the device design is compact, saves space, simple structure to easily make and install.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The figures are labeled as follows: 1-feeding barrel, 2-hopper, 3-bell, 4-discharging barrel, 5-hydraulic cylinder, 6-pull rod, 7-chain, 8-chain wheel support, 9-chain wheel I, 10-chain wheel II, 11-chain wheel box beam.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

A sprocket built-in bell valve, as shown in fig. 1: the charging hopper comprises an upper charging barrel 1 and a lower charging barrel 4, wherein a hopper 2 is arranged between the upper charging barrel 1 and the lower charging barrel 4, the upper end of the hopper 2 is flanged between flanges of the upper charging barrel 1 and the lower charging barrel 4 and is clamped and fixed, and the inner conical surface at the lower end of the hopper 2 is matched with the outer conical surface at the lower end of a bell 3; the upper part of the bell 3 is connected with an external hydraulic cylinder 5 through a pull rod 6 and a chain 7, one end of the chain 7 is connected with the pull rod 6, and the other end of the chain 7 penetrates through the upper charging barrel 1 and is guided through a chain wheel I9 and a chain wheel II 10; a hollow chain wheel box beam 11 is transversely arranged in the upper charging barrel 1, a chain wheel II 10 is arranged in the chain wheel box beam 11, the chain wheel II 10 is arranged on one side of the central line of the upper charging barrel 1, and the reference circle of the chain wheel II 10 is tangent to the central line of the bell 3; one section of lower part of sprocket II 10 is protruding downwards and the bottom opening in sprocket case roof beam 11, and sprocket II 10 is installed in entering sprocket case roof beam 11 from the opening, sprocket I9 is fixed in the upper feed cylinder 1 outside through sprocket support 8.

In the embodiment, a preferable scheme is adopted, the outer surface of the bell 3 is completely matched with the contact surface of the hopper 2, and hard alloy is deposited on the contact surface; the chain 7 is a loop chain; the chain wheel II 10 is installed in the box girder 11 through a short shaft.

The embodiment specifically operates as follows: when the bell valve is closed, a piston rod of the hydraulic cylinder 5 is contracted, the bell 3 is driven by the ring chain 7 to move upwards along the central axis until contacting with the hopper 2, the bell 3 is hung under the pull rod 6 and the ring chain 7 and naturally droops along the central axis, so that the bell 3 can be automatically centered and adjusted when contacting with the hopper 2, and after the bell is closed, the falling of the material is blocked, and meanwhile, the gas is blocked from passing through, thereby playing a role in sealing; when needs are reinforced to the stove, the pneumatic cylinder piston rod stretches out, and the bell moves downwards along the direction of the central axis under the effect of material gravity and the self gravity of the bell, and the bell separates from the hopper, and the material smoothly falls down, and after the reinforced, the pneumatic cylinder drives the bell upward movement, seals the hopper mouth once more.

The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A bell valve with a built-in chain wheel, characterized in that: the charging device comprises an upper charging barrel (1) and a lower charging barrel (4), wherein a hopper (2) is arranged between the upper charging barrel (1) and the lower charging barrel (4), the upper end flanging of the hopper (2) is clamped and fixed between flanges of the upper charging barrel (1) and the lower charging barrel (4), and the lower end inner conical surface of the hopper (2) is matched with the lower end outer conical surface of a bell (3);

the bell (3) is hung on the lower part of the hopper (2) by a pull rod (6), a chain (7) and a chain wheel II (10), one end of the chain (7) is connected with the pull rod (6), and the other end of the chain penetrates through the upper charging barrel (1) and is connected with a piston rod of the hydraulic cylinder (5) outside the valve through the guide of the chain wheel I (9) and the chain wheel II (10);

a hollow chain wheel box beam (11) is transversely arranged in the upper charging barrel (1), the chain wheel II (10) is arranged in the chain wheel box beam (11), the chain wheel II (10) is arranged on one side of the central line of the upper charging barrel (1), and the reference circle of the chain wheel II (10) is tangent to the central line of the bell (3); the lower part of the chain wheel box beam (11) and the corresponding part of the chain wheel II (10) are downwards protruded by one section and have an opening at the bottom, the chain wheel II (10) enters the chain wheel box beam (11) from the opening to be installed, and the chain wheel I (9) is fixed on the outer side of the upper charging barrel (1) through a chain wheel support (8).

2. The sprocket built-in bell valve as set forth in claim 1, wherein: and hard alloy is deposited on the contact surface of the hopper (2) and the bell (3).

3. The sprocket built-in bell valve as set forth in claim 1, wherein: the chain (7) is a loop chain.

4. The sprocket built-in bell valve as set forth in claim 1, wherein: and the chain wheel II (10) is arranged in the box girder (11) through a short shaft.