CN218422883U - Graphite crucible and lifting appliance thereof - Google Patents

Abstract

The utility model discloses a graphite crucible and a lifting appliance thereof, the graphite crucible is provided with a cylindrical enclosure wall, the inner wall of the upper port is provided with a circle of reinforcing ribs, and the inner diameter of the outer port where the reinforcing ribs are positioned is smaller than the inner diameter of the crucible below the reinforcing ribs; the crucible lifting appliance is provided with a horizontal lifting rod and a lifting ring or a vertical lifting rod, wherein the lifting ring or the vertical lifting rod is welded on the upper side of the central point of the horizontal lifting rod; the length of the hanging rod is smaller than the inner diameter of the crucible and larger than the inner diameter of the reinforcing rib. The structure of the crucible is simple, the mechanical strength of the port is high, and the crucible is convenient to hoist and transport; the lifting appliance is low in manufacturing cost, good in stability when used for lifting the crucible and quick to connect and detach.

Description

Graphite crucible and lifting appliance thereof

Technical Field

The utility model relates to a graphite product and haulage equipment thereof.

Background

The crucible is a deep-bottomed circular container. When solids are to be heated with a strong fire, a crucible must be used. As it is more tolerant of high temperatures than glassware. When the crucible is used, the crucible cover is usually placed on the crucible in an inclined manner to prevent the heated material from jumping out and to allow air to freely enter and exit for possible oxidation reactions. Because the bottom of the crucible is very small, the crucible can be directly heated by fire generally by being erected on a mud triangle. The crucible can be placed on the iron tripod in a forward or inclined mode, and can be automatically arranged according to the requirements of experiments. The crucible cannot be placed immediately on a cold metal table after heating to avoid it breaking due to rapid cooling.

The production of domestic graphite crucibles has reached or even exceeded the production of imported crucibles, which have the following characteristics: (1) the high density of the graphite crucible enables the crucible to have the best heat conducting performance, and the heat conducting effect of the graphite crucible is obviously superior to that of other imported crucibles; (2) the graphite crucible is provided with a special glaze layer and compact molding materials on the surface, so that the corrosion resistance of the product is greatly improved, and the service life of the product is prolonged; (3) the graphite in the graphite crucible is completely made of natural graphite, so that the heat conductivity is very good; (4) the service life of the crucible can reach more than 6 months.

However, the graphite crucible is heavy and has a high compressive strength, but the tensile and flexural strength is not high enough. The carrying and hoisting of the graphite crucible lack simple and easy tools and modes.

The invention of application number 201910139206.5 discloses a graphite crucible processing technology, relates to the technical field of graphite processing, and solves the problem of raw material waste in the preparation of a graphite crucible in the prior art, wherein the technical scheme is characterized by comprising the following steps: a. selecting a graphite block; b. cutting; c. preliminary processing of a groove; d. cutting off waste materials; e. polishing the side wall of the groove; g. and (4) performing heat treatment, namely performing two times of processing through the primary processing cutter and the cutting cutter to generate cylindrical graphite blocks as waste materials. The crucible is hoisted by a large instrument from the periphery, and the hoisting efficiency is not high.

The invention with the application number of 201811414329.7 discloses a graphite crucible clamping device and a using method thereof, wherein the graphite crucible clamping device comprises a beam frame, two clamping plates are slidably sleeved on the outer side of the beam frame, a rectangular hole is formed in one side of the beam frame, a handle rod is welded on the top side of the beam frame and is located between the two clamping plates, the two clamping plates are symmetrically arranged based on the handle rod, two rotating seats are slidably mounted in the rectangular hole and are symmetrically arranged based on the handle rod, and the two rotating seats are located between the two clamping plates. The structure of the clamping device is complex, and the manufacturing cost is high.

Disclosure of Invention

Utility model purpose:

provides a graphite crucible with a mouth part provided with a reinforcing rib and convenient and rapid hoisting and a hoisting tool thereof.

The technical scheme is as follows:

the utility model discloses a graphite crucible has cylindrical leg, and the lower bottom seals, and the last port is opened. A circle of reinforcing ribs (the height of the reinforcing ribs is 1/5-1/20 of the height of the graphite crucible, and the thickness of the reinforcing ribs is about 1/5-1/20 of the inner diameter of the graphite crucible) are arranged on the inner wall of the upper port, so that the inner diameter of an outer port where the reinforcing ribs are located is smaller than the inner diameter of the crucible below the reinforcing ribs.

The upper port of the reinforcing rib on the axial section view of the crucible is an arc line section, so that the upper port is ensured to have no quick opening, and the crucible is not easy to cut hands and damage; the lower port of the reinforcing rib is preferably a horizontal line segment or an inclined line segment, so that the following lifting appliance can be clamped for lifting.

The crucible lifting appliance is provided with a horizontal hanging rod and a lifting ring (or a vertical hanging rod), and the lifting ring (or the vertical hanging rod) is welded on the upper side of the central point of the horizontal hanging rod. The length of the hanging rod is smaller than the inner diameter of the crucible and larger than the inner diameter of the reinforcing rib.

When the lower port of the reinforcing rib is preferably a horizontal line segment, the two ends of the suspension rod are straight.

When the lower port of the reinforcing rib is preferably an inclined line segment, the two ends of the suspension rod are inclined planes with basically the same angle, and can be tightly matched with the crucible reinforcing rib.

When the crucible lifts by crane, horizontal jib inclines slightly and puts into crucible strengthening rib below, connects rings (or perpendicular jib) with movable iron chain, and horizontal jib blocks the strengthening rib, and the rings (perhaps need not the iron chain, direct tractive perpendicular jib) on the horizontal jib are pulled up in a flexible way to the tractive iron chain. When the upward hanging force of the travelling crane is larger than the downward gravity of the crucible, the crucible can be stably hung. After the crucible is hoisted in place, the crucible is put down, one end of the horizontal suspender is slightly lowered under the condition that the hoisting tool is not subjected to hoisting force any more, the other end of the horizontal suspender can be easily separated, and the hoisting tool is lifted out of the crucible and can be reused and hoist other crucibles.

The horizontal suspender can be two which form a certain included angle (preferably mutually perpendicular) and are in cross connection, when in hoisting, the two horizontal suspenders are positioned at the same horizontal position and can have 4 contact points with the reinforcing rib, so that the hoisting is more stable and reliable. Preferably, the two horizontal hanging rods are movably connected in a cross manner, and one or two springs (two springs are symmetrically arranged on two sides with the central point position as a symmetric center) can be connected between the two horizontal hanging rods, so that the included angle between the two horizontal hanging rods can be properly stretched and adjusted to keep a certain distance.

For better improvement work efficiency, can transfer through a channel-section steel and connect 2 or three lifting hooks, an activity iron chain is connected to every lifting hook lower joint, and rings are connected to every activity iron chain, just so once can hang 2 or 3 crucibles simultaneously.

Has the beneficial effects that:

the structure of the crucible is simple, and the manufacture and the processing are easy; and the mechanical strength of the port is high, the port is not easy to crack, and the hoisting and the transportation are convenient. The utility model discloses a shape and the simple structure of hoist, low in manufacturing cost is honest and clean, and stability is good when hoist and mount crucible, connects and dismantles swiftly, hoist and mount convenient to use. Complex electric or automatic control device operation is not needed, even if all the devices depend on manual operation, the safety is high, and the hoisting efficiency is high.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the present invention.

Fig. 2 is another schematic perspective view of the present invention.

In the drawing, 1-reinforcing bar; 2-links (or vertical booms); 3-a horizontal boom; 4-crucible surrounding wall; 5-a spring.

Detailed Description

The crucible is a product newly developed by applicant company, and when loading and delivering goods, in order to fully utilize the space of a carriage, the crucible needs to be vertically arranged from a horizontal position manually, and then a crucible cover is covered on the crucible. When the second layer of crucible is hoisted, a person stands on the first layer of crucible cover, in order to protect the crucible, grass is padded under the first layer, the crucible cover slides, the sole is not easy to stand stably, the gravity center of the person is unstable, meanwhile, the crucibles are tangent by circles, and a gap space of nearly 200mm is reserved, the person erects the crucible by force, the crucible cover is unsafe and very laborious, the company can realize that phi 500 finished crucibles are more than 70 kg/piece on average, 1 person can erect as much as possible, phi 600 finished crucibles are more than 110 kg/piece on average, and the crucible cover is processed by sawing with large longitudinal-crack graphitizing electrodes, so that the person stands on the crucible cover to erect the crucible more difficultly, and has higher risk.

In order to solve the problems of crucible hoisting and delivery, crucible characteristics are carefully observed, in order to prolong the service life of the crucible, a section of reinforcing rib 1 with the diameter of about 15mm is arranged at the end opening of the crucible produced by a company, the inner opening is large, the outer opening is small, through observation, a round steel with the diameter of phi 30 is used, the two ends of the round steel are processed into inclined planes matched with the reinforcing rib 1 at the crucible opening, and the length of the round steel is 2-3 mm smaller than the inner diameter of the inner opening of the crucible.

The first embodiment is as follows: the graphite crucible as shown in figure 1 has a cylindrical surrounding wall 4, the lower bottom is closed, the upper port is open, the inner wall of the upper port is provided with a circle of reinforcing ribs 1, and the inner diameter of the outer opening where the reinforcing ribs 1 are located is smaller than the inner diameter of the crucible below the reinforcing ribs 1. The graphite crucible lifting appliance shown in fig. 1 comprises a horizontal suspension rod 3 and a hanging ring or a vertical suspension rod 2, wherein the hanging ring or the vertical suspension rod 2 is welded on the upper side of the central point of the horizontal suspension rod 3; the length of the hanging rod is smaller than the inner diameter of the crucible and larger than the inner diameter of the reinforcing rib 1.

Example two: the graphite crucible lifting appliance is used for lifting a graphite crucible shown in figure 1 and is shown in figure 2, the horizontal suspenders 3 are two horizontal suspenders which are in cross connection with each other, and a spring 5 is connected between the two horizontal suspenders 3 so as to form two horizontal suspenders 3 with stable included angles, so that the lifting is more stable and firmer.

Claims (5)

1. The utility model provides a graphite crucible, cylindrical leg (4), the bottom is sealed down, and the up end is opened, its characterized in that: a circle of reinforcing ribs (1) are arranged on the inner wall of the upper port, and the inner diameter of an outer port where the reinforcing ribs (1) are located is smaller than the inner diameter of the crucible below the reinforcing ribs (1); the upper port of the reinforcing rib (1) on the axial section of the graphite crucible is a circular arc segment, and the lower port of the reinforcing rib (1) is a horizontal segment.

2. The graphite crucible as set forth in claim 1, wherein: the height of the reinforcing ribs (1) is 1/5-1/20 of the height of the graphite crucible, and the thickness of the reinforcing ribs (1) is about 1/5-1/20 of the inner diameter of the graphite crucible.

3. The utility model provides a hoist of graphite crucible which characterized in that: can be used for hoisting the graphite crucible of claim 1 or 2; the lifting device is provided with a horizontal hanging rod (3) and a lifting ring or a vertical hanging rod (2), wherein the lifting ring or the vertical hanging rod (2) is welded on the upper side of the central point of the horizontal hanging rod (3); the length of the hanging rod is less than the inner diameter of the crucible and greater than the inner diameter of the reinforcing rib (1);

the lower port of the reinforcing rib (1) is an inclined line segment, and the two ends of the suspender are inclined planes with basically the same angle and can be closely matched with the crucible reinforcing rib (1).

4. The hanger for graphite crucibles according to claim 3, wherein: the horizontal hanging rods (3) are two mutually cross-connected.

5. The hanger for graphite crucibles according to claim 4, wherein: one or two springs (5) are connected between the two horizontal suspenders (3).

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