CN204702510U - A kind of furnace of calcium carbide drawing mechanism - Google Patents

Abstract

The utility model discloses a kind of furnace of calcium carbide drawing mechanism, comprise the anti-splashing device of to come out of the stove described in being arranged on baffle plate, be arranged on described furnace wall goes out converter nose and the safety guard in gonys portion of coming out of the stove described in being positioned at, wherein, described anti-splashing device comprises tilting at described bracket two of coming out of the stove on baffle plate, and described bracket two is provided with some refractory plates; Described go out converter nose be heat resisting iron body, heat resisting iron body is provided with some platforms; Safety guard comprise to be arranged on out between converter nose with described furnace wall and with the bracket one going out converter nose and match, be provided with hollow stent between bracket one and described furnace wall, in hollow stent, be filled with mould material.The beneficial effects of the utility model: by arranging safety guard in gonys portion of coming out of the stove, thus going out between converter nose and furnace wall to form a high temperature resistant base, during a large amount of stream ferrosilicon, even if converter nose bracket one ruptures and also can not produce converter nose and come off, leak and the situation such as furnace wall destruction.

Description

A discharge device for calcium carbide furnace

technical field

The utility model relates to the technical field of calcium carbide furnaces, in particular to a discharge device for calcium carbide furnaces.

Background technique

When a large amount of ferrosilicon flows in the existing calcium carbide furnace, it is easy to burn through the outlet nozzle, causing the bracket at the bottom of the outlet nozzle to break, resulting in the outlet nozzle falling, the outlet nozzle leaking and the furnace wall below the outlet nozzle being burned. Moreover, when the calcium carbide furnace is out of the furnace, due to the fluctuation of furnace gas pressure, the viscosity of calcium carbide and the fluctuation of calcium carbide flow rate, especially when the flow rate is too fast or uneven, part of the calcium carbide will splash to the opposite screen and the other side during the outflow process. If the amount of splashing is too large, it will cause serious accidents such as the derailment of the furnace car.

Aiming at the problems in the related technologies, no effective solution has been proposed yet.

Utility model content

The purpose of this utility model is to provide a calcium carbide furnace discharge device to overcome the above-mentioned shortcomings existing in the current prior art.

For realizing above-mentioned technical purpose, technical scheme of the present utility model is realized like this:

A discharge device for a calcium carbide furnace. The calcium carbide furnace includes a furnace wall. A furnace screen is provided on the outside of the furnace wall. A furnace discharge track is provided between the furnace wall and the furnace discharge screen. Car, the calcium carbide furnace is provided with a calcium carbide pot, and the calcium carbide furnace discharge device includes an anti-splash device arranged on the furnace screen, a furnace nozzle arranged on the furnace wall, and a furnace outlet located at the bottom of the furnace nozzle. The protection device, wherein, the anti-splash device includes a bracket two placed obliquely on the screen of the furnace, and a number of heat-resistant plates are arranged on the bracket two; the furnace nozzle is a heat-resistant cast iron pipe body, Several platforms are provided on the heat-resistant cast iron pipe body, and a discharge channel is arranged inside the heat-resistant cast iron pipe body; Bracket 1 matched with the nozzle, a hollow bracket is provided between the bracket 1 and the furnace wall, and castable material is filled in the hollow bracket.

Further, the hollow bracket is made of steel.

Further, the heat-resistant plate is made of heat-resistant cast iron.

Further, the number of the heat-resistant plates is four.

Beneficial effects of the utility model: by installing a protective device at the bottom of the furnace nozzle, a high temperature resistant base is formed between the furnace nozzle and the furnace wall. When a large amount of ferrosilicon flows, the furnace nozzle will not fall off even if the bracket breaks , water leakage, and furnace wall damage; by installing an anti-splash device on the furnace screen, the splashed calcium carbide can be directly introduced into the calcium carbide pot along the guard plate, effectively protecting the furnace screen and the furnace track; by setting several platforms on the furnace nozzle , so that the material flow rate is more uniform, and further avoid material splashing. The utility model can greatly save the cost of the furnace nozzle, prolong the service life of the furnace track, prevent the damage of the high-temperature calcium carbide to the furnace screen and the furnace car, and effectively ensure the normal production of the calcium carbide furnace.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the present invention, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic structural diagram of a discharge device for a calcium carbide furnace according to an embodiment of the present invention;

Fig. 2 is the A-A view of Fig. 1 .

In the picture:

1. Furnace wall; 2. Furnace nozzle; 3. Calcium carbide pot; 4. Furnace car; 5. Furnace rail; 6. Bottom protection device of furnace nozzle; 7. Anti-splash device; ; 10, heat-resistant plate; 11, bracket two; 12, discharge channel; 13, platform.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

As shown in Figure 1-2, according to a calcium carbide furnace discharging device described in the embodiment of the present invention, the calcium carbide furnace includes a furnace wall 1, and a furnace screen 8 is arranged on the outside of the furnace wall 1, and the furnace wall 1 A furnace track 5 is arranged between the furnace shield screen 8, a furnace car 4 is arranged on the furnace rail 5, a calcium carbide pot 3 is arranged on the furnace car 4, and the calcium carbide furnace discharging device includes a The anti-splash device 7 on the furnace screen 8, the furnace nozzle 2 arranged on the furnace wall 1 and the protection device 6 at the bottom of the furnace nozzle 2, wherein the anti-splash device 7 includes Describe the bracket two 11 on the furnace screen 8, the bracket two 11 is provided with some heat-resistant plates 10; the furnace nozzle 2 is a heat-resistant cast iron pipe body, and the heat-resistant cast iron pipe body is provided with A platform 13, the inside of the heat-resistant cast iron pipe body is provided with a discharge channel 12; A frame one 9, a hollow bracket is provided between the bracket one 9 and the furnace wall 1, and the hollow bracket is filled with castables.

In one embodiment, the material of the hollow bracket is steel.

In one embodiment, the heat-resistant plate 10 is made of heat-resistant cast iron.

In one embodiment, the number of the heat-resistant plates 10 is four.

In order to facilitate the understanding of the above-mentioned technical solution of the present utility model, the above-mentioned technical solution of the present utility model will be described in detail below through specific usage modes.

In specific use, according to the calcium carbide furnace discharging device described in the present utility model, the bottom protection device 6 of the outlet nozzle includes a hollow support made of a welded steel plate with a thickness of 12mm, and the inside is filled with high-temperature resistant castables. 2. If the outflowing high-temperature calcium carbide contains a large amount of impurity ferrosilicon, it will burn through the furnace nozzle 2 and cause damage to the bottom bracket 9 of the furnace nozzle 2 and the calcium carbide furnace wall 1. The bottom protection device 6 of the furnace nozzle can effectively isolate the high-temperature calcium carbide. Prevent the explosion caused by the internal circulation water pipe damage and water leakage caused by the burning through of the outlet nozzle 2.

Use δ=20mm steel plate to make a bracket 2 11 with a certain inclination on the screen 8 of the furnace, and fix the δ=30mm heat-resistant cast iron plate on it with countersunk bolts as a protective material, which can well guide the splashed calcium carbide into the calcium carbide pot 3 Inside. The size of the additional bracket 211 is 2400×900mmQ235, and the heat-resistant protective plate is composed of 4 pieces of 600×900 heat-resistant cast iron plates, which can withstand high temperatures of 1000°C without deformation.

Due to the influence of calcium carbide furnace furnace pressure and calcium carbide flow rate during the furnace, the part of the calcium carbide flowing out from the furnace nozzle 2 will splash on the opposite furnace screen 8. If the amount of splash is large and flows on the furnace rail 5, it will cause the furnace trolley 4 to fall off the road and The out-of-the-oven track 5 is deformed and damaged by the high temperature, and the anti-splash protective device 7 can guide the splashed carbide into the calcium carbide pot 3 and be normally transported by the out-of-the-box car 4 .

Furnace nozzle cost saving: the annual saving of 2 furnace nozzles is 3 (21,000 yuan), and the service life of furnace nozzle 2 is increased by more than one month, from about three months to about four months. The service life of the fired track 5 is increased: because a large amount of splashed calcium carbide can directly flow into the calcium carbide pot 3 without burning the fired track 5, the service life of the track can be increased from four months to about six months, and the annual material cost can be saved by 18,000 yuan ( 9 pieces x 2000 yuan). It greatly reduces the phenomenon that the calcium carbide splashes to the furnace track 5, causing the furnace car 4 to fall off the road, the calcium carbide flows to the ground, burns the furnace car 4 and affects the production of the calcium carbide furnace, and effectively reduces the strength of the workers to clean the furnace track 5. On the other hand Prevent high-temperature calcium carbide from damaging the furnace screen 8 and the bottom of the furnace car 4, which can save more than 50,000 yuan per furnace per year, effectively ensuring the normal production of the calcium carbide furnace. In terms of safety benefits, it can avoid the occurrence of burning and water leakage explosion accidents at the outlet nozzle 2 caused by a large amount of ferrosilicon flow, and avoid the occurrence of equipment accidents such as burning and damaging the furnace wall 1.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (4)

1. A discharge device for a calcium carbide furnace. The calcium carbide furnace includes a furnace wall (1), and a furnace screen (8) is provided on the outside of the furnace wall (1), and the furnace wall (1) and the furnace screen ( 8) A furnace track (5) is provided between them, a furnace car (4) is provided on the furnace car (5), and a calcium carbide pot (3) is provided on the furnace car (4), it is characterized in that the The discharge device of the calcium carbide furnace includes an anti-splash device (7) arranged on the furnace screen (8), a furnace nozzle (2) arranged on the furnace wall (1), and a The protection device (6) at the bottom, wherein the anti-splash device (7) includes bracket two (11) obliquely placed on the furnace screen (8), and the bracket two (11) is provided with Several heat-resistant plates (10); the outlet nozzle (2) is a heat-resistant cast iron pipe body, and several platforms (13) are arranged on the heat-resistant cast iron pipe body; Channel (12); the protective device (6) includes a bracket one (9) arranged between the furnace nozzle (2) and the furnace wall (1) and matched with the furnace nozzle (2) , A hollow bracket is provided between the bracket one (9) and the furnace wall (1), and the hollow bracket is filled with castables. 2. The discharge device for calcium carbide furnace according to claim 1, characterized in that, the material of the hollow support is steel. 3. The discharge device for calcium carbide furnace according to claim 1, characterized in that, the heat-resistant plate (10) is made of heat-resistant cast iron. 4. The discharge device for calcium carbide furnace according to claim 3, characterized in that the number of the heat-resistant plates (10) is four.