CN204177195U - A kind of calcining furnace - Google Patents

Abstract

The utility model relates to the technical field of calcination equipment, and provides a calcination furnace. The calcination furnace includes a furnace body composed of refractory bricks and a steel frame structure. The groove is provided with a cooling water pipe, and the cooling water flows through the cooling water pipe. One end of the cooling water pipe is connected to the water supply source, and the other end is connected to the boiler. The outer layer of the furnace body is provided with a thermal insulation layer. The cooling water in the cooling water pipe provided by the utility model will fully absorb the heat radiated from the furnace body, increase the temperature of the cooling water, and provide it to the boiler as preheating water, saving the combustion cost of boiler preheating. Most of the heat radiated by the body is absorbed by the cooling water, which greatly reduces the heat emitted by the insulation layer to the surrounding environment of the calciner, does not require additional frequent replacement of rests, and improves the comfort of the working environment.

Description

a calciner

technical field

The utility model belongs to the technical field of calcining equipment, in particular to a calcining furnace.

Background technique

Calciner is a kind of equipment used for high temperature treatment, using fuels such as natural gas, oil and electricity as energy sources, for ironmaking, recovery of rare metals, catalyst production, environmental improvement, and production of special chemicals. The calciner uses direct or indirect heat sources, and can continuously process batch materials at medium or high temperatures, which can ensure the isolation of heat sources and products during processing. It can be used in various industries and has a wide range of applications.

The calcination furnace is generally set in the shape of a rectangular calcination pot. Since the calcination temperature in the furnace reaches hundreds or even thousands of degrees, the radiation heat dissipation of the furnace body is more obvious. The temperature in a certain space around the calcination furnace is relatively high, resulting in heat loss and increased fuel costs.

At the same time, the feed inlet of the calciner is generally set on the top of the furnace, and the operators need to walk frequently on the top of the furnace to perform various operating tasks. Replacement is more costly, and may also cause the danger of burns to the feet of the staff.

Utility model content

The purpose of this utility model is to provide a calciner, aiming at solving the problem that the high-temperature radiation and heat dissipation of the prior art calciner is strong, which causes the temperature of the surrounding environment to rise and cause heat loss. The problem.

The utility model is achieved in this way, a calciner, the calciner includes a furnace body composed of refractory bricks and a steel frame structure, the two outer walls of the furnace body opposite to each other are provided with embedded concave A cooling water pipe is provided in the groove, and cooling water flows through the cooling water pipe. One end of the cooling water pipe is connected to the water supply source, and the other end is connected to the boiler. The outer layer of the furnace body is provided with an insulating layer.

As an improved solution, the calciner is also provided with a fire viewing port, the fire viewing port is arranged between the two adjacent cooling water pipes, and a fire viewing device is arranged in the fire viewing port.

As an improved solution, the fire viewing device includes a cylindrical fire viewing channel and a fire viewing port cover, and a circulating water jacket is set on the periphery of the fire viewing channel, and the circulating water jacket has the same length as the fire viewing channel. The circulating water jacket is provided with a water inlet and a water outlet, the water inlet is arranged at the bottom, the water outlet is arranged at the top, the water inlet is connected to the water inlet pipe, and the water outlet is connected to the water outlet pipe.

As an improved solution, the fire observation port cover is a high temperature resistant glass cover.

As an improved solution, the fire viewing port cover is provided with a high temperature resistant glass viewing window.

As an improved solution, the cooling water pipe is composed of several pipe sections connected end to end, and the pipe sections include horizontally arranged main pipe sections and vertically arranged connecting pipe sections.

As an improved solution, the end of the cooling water pipe connected to the water supply source is arranged at the lower part of the furnace body, and the end of the cooling water pipe connected to the boiler is arranged at the upper part of the furnace body.

As an improved solution, the cooling water pipe is composed of several independent pipes arranged horizontally and independently of each other.

As an improved solution, one end of each independent pipeline is respectively connected to the water supply source, and the other end is respectively connected to the boiler.

As an improved solution, one end of each independent pipe is connected to the water supply source after being collected, and the other end is connected to the boiler after being collected.

Since the calciner includes a furnace body and an insulation layer, embedded grooves are respectively provided on the two opposite outer walls of the furnace body, and a cooling water pipe is provided in the groove, and one end of the cooling water pipe is connected to a water supply source, and the other One end is connected to the boiler, and the cooling water in the cooling water pipe will fully absorb the heat radiated from the furnace body, increase the temperature of the cooling water, and provide it to the boiler as preheating water, saving the combustion cost of boiler preheating. Most of the heat emitted by the radiation of the body is absorbed by the cooling water, which greatly reduces the heat emitted to the surrounding environment of the calciner through the insulation layer, does not require additional frequent replacement of rests, and improves the comfort of the working environment.

Since the calciner is also provided with a fire viewing port, the fire viewing port is arranged between the two adjacent cooling water pipes, and a fire viewing device is arranged in the fire viewing port, so as to facilitate information such as the combustion status in the calciner. View, convenient for timely operation and management.

Since the fire viewing channel is equipped with a circulating water jacket, the circulating water jacket is equipped with a water inlet and a water outlet, and the water in the circulating water jacket cools down and dissipates heat for the fire viewing channel, prolonging the life of the fire viewing channel and reducing the need for frequent replacement of the fire viewing channel. The cumbersome operation of the channel, but also reduces the cost.

Since the fire viewing port cover is set as a high-temperature resistant glass cover or is provided with a high-temperature resistant glass window, the situation in the furnace body can be checked without removing the original cover body, and the operation is simple and convenient.

Since the cooling water pipe is composed of several pipe sections connected end to end and arranged horizontally, the end of the cooling water pipe connected to the water supply source is arranged at the lower part of the furnace body, and the end of the cooling water pipe connected to the boiler is arranged at the furnace body The upper part of the furnace body, that is, the cooling water enters the cooling water pipe from the inlet located at the lower part of the furnace body, and is discharged from the upper outlet of the furnace body to the boiler to complete the absorption of radiation and heat dissipation of the furnace body, with high efficiency and large heat absorption. The cooling effect of the working environment around the calciner is obvious.

Since the cooling water pipe is composed of several independent pipes arranged horizontally, the independent pipes arranged horizontally have a simple structure and better heat dissipation effect.

Description of drawings

Fig. 1 is a schematic structural view of the calciner provided by Embodiment 1 of the present invention;

Fig. 2 is the structural representation of the calciner provided by the second embodiment of the utility model;

Fig. 3 is a schematic structural view of the groove provided by Embodiment 1 of the present utility model;

Fig. 4 is a schematic structural diagram of the groove provided by the second embodiment of the utility model;

Fig. 5 is a schematic structural view of the cooling water pipe provided by Embodiment 1 of the present utility model;

Fig. 6 is a schematic structural view of the cooling water pipe provided by the second embodiment of the utility model;

Fig. 7 is a schematic structural view of the cooling water pipe provided by the third embodiment of the utility model;

Among them, 1-furnace body, 2-groove, 3-cooling water pipe, 31-main pipe section, 32-connecting pipe section, 33-independent pipe, 4-insulation layer, 5-fire viewing port, 6-fire viewing device, 61 -fire viewing channel, 62-fire viewing port cover, 63-circulating water jacket, 631-water inlet, 632-water outlet, 7-water inlet pipe, 8-water outlet pipe.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Fig. 1 shows a schematic structural view of the calciner provided by Embodiment 1 of the present invention. For the convenience of description, only the parts related to the present invention are shown in the figure.

The calciner includes a furnace body 1 composed of refractory bricks and a steel frame structure. The two opposite outer walls of the furnace body 1 are respectively provided with embedded grooves 2, and the grooves 2 are provided with cooling water pipes. 3. Cooling water flows through the cooling water pipe 3 , one end of the cooling water pipe 3 is connected to the water supply source, and the other end is connected to the boiler, and the outer layer of the furnace body 1 is provided with an insulating layer 4 .

In the utility model, the cooling water in the cooling water pipe 3 fully absorbs the heat radiated from the furnace body 1, increases the temperature of the cooling water, and provides it to the boiler as preheated water, saving the combustion cost of boiler preheating, and at the same time , since most of the heat radiated from the furnace body is absorbed by the cooling water, the heat from the surrounding environment of the calciner dissipated through the insulation layer is greatly reduced, no additional frequent replacement of rests is required, and the comfort of the working environment is improved.

Fig. 2 shows a schematic structural view of the calciner provided in Embodiment 2 of the present invention. For the convenience of description, only the parts related to the present invention are shown in the figure.

On the basis of the first embodiment above, a fire viewing port 5 is also provided on the calciner, and the fire viewing port 5 is arranged between the two adjacent cooling water pipes 3, and a fire viewing device 6 is arranged in the fire viewing port 5 .

In this embodiment, the fire viewing device 6 includes a cylindrical fire viewing channel 61 and a fire viewing port cover 62, and a circulating water jacket 63 is set on the periphery of the fire viewing channel 61, and the circulating water jacket 63 is connected with the fire viewing port. The channels 61 have the same length, the circulating water jacket 63 is provided with a water inlet 631 and a water outlet 632, the water inlet 631 is arranged at the bottom, and the water outlet 632 is arranged at the top, and the water inlet 631 is connected to the water inlet pipe 7, so The water outlet 632 is connected to the water outlet pipe 8 .

Further, the fire viewing port cover 62 is a high temperature resistant glass cover, or, the fire viewing port cover 62 is provided with a high temperature resistant glass observation window (not marked in the figure) to facilitate the operator to check the situation in the furnace, which is highly convenient. , No need to wear thick gloves to open the cover and then cover it again.

In the utility model, the water in the circulating water jacket 63 cools and dissipates heat from the fire observation channel 61, which prolongs the service life of the fire observation channel 61, reduces cumbersome operations due to frequent replacement of the fire observation channel, and reduces costs.

Certainly, in the calciner shown in Fig. 1 and Fig. 2, the structure such as the feed port is not given, so it will not be repeated here, but it is not used to limit the utility model.

Furthermore, there may be components such as a pump body and a switch valve at both ends of the cooling water pipe 3 of the present invention, which are not shown in the figure and will not be described here, but they are not used to limit the present invention.

On the basis of the embodiment shown in Fig. 1 or Fig. 2, in the above-mentioned embodiment, the quantity of groove 2 can be set according to actual situation, and its shape can adopt multiple ways, for example the right angle groove shown in Fig. 3 ( This type is also given in the embodiment of Figure 1), or the arc groove shown in Figure 4, relative to the heat dissipation and heat absorption effect, the effect of the arc groove is better, so it will not be repeated here, but it is not used to limit The utility model.

On the basis of the embodiment shown in Fig. 1 or Fig. 2, the setting of the cooling water pipe 3 on the side of the furnace body 1 can adopt various methods, and the specific analysis is as follows:

(1): As shown in Figure 5, the cooling water pipe 3 is composed of several pipe sections connected end to end, and the pipe sections include a horizontally arranged main pipe section 31 and a vertically arranged connecting pipe section 32. In this case, the entire furnace body 1. The cooling water pipe 3 on the side wall has an integrated structure, and is respectively connected to the water supply source and the boiler through ports, so that the heat dissipation effect is better.

Wherein, one end of the cooling water pipe 3 connected to the water supply source is arranged on the lower part of the furnace body 1, and one end of the cooling water pipe 3 connected to the boiler is arranged on the upper part of the furnace body 1. The purpose of such setting is Improve the absorption rate of heat dissipation.

(2): As shown in FIG. 6 , the cooling water pipe 3 is composed of several mutually independent independent pipes 33 arranged horizontally, that is, these independent pipes 33 are arranged side by side in parallel and are independent of each other, wherein:

The design of the head and tail ends of the independent pipeline 33 can be individually connected as shown in Figure 6, or can be connected together as shown in Figure 7, which will not be described in detail here, but it is not intended to limit the utility model.

In the present utility model, the calciner includes a furnace body and an insulating layer. The two opposite outer walls of the furnace body are respectively provided with embedded grooves, and a cooling water pipe is arranged in the groove, and one end of the cooling water pipe Connect the water supply source, and the other end is connected to the boiler. The cooling water in the cooling water pipe will fully absorb the heat radiated from the furnace body, increase the temperature of the cooling water, and provide it to the boiler as preheating water, saving the combustion cost of boiler preheating. At the same time, since most of the heat radiated by the furnace body is absorbed by the cooling water, the heat emitted by the insulation layer to the surrounding environment of the calciner is greatly reduced, no additional frequent replacement of rests is required, and the comfort of the working environment is improved. .

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 and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A calcination furnace, the calcination furnace comprises a body of furnace body composed of refractory bricks and a steel frame structure, characterized in that, the two outer sidewalls of the body of furnace relative are respectively provided with embedded grooves, A cooling water pipe is provided in the groove, and cooling water flows through the cooling water pipe. One end of the cooling water pipe is connected to a water supply source, and the other end is connected to a boiler. The outer layer of the furnace body is provided with an insulating layer. 2. The calciner according to claim 1, characterized in that, the calciner is also provided with a fire viewing port, the fire viewing port is arranged between the adjacent two sections of cooling water pipes, and the fire viewing port is provided with There are fire viewing devices. 3. The calciner according to claim 2, characterized in that, the fire observation device comprises a cylindrical fire observation passage and a fire observation port cover, and a circulating water jacket is set on the periphery of the fire observation passage, and the circulating water jacket and The length of the viewing channel is the same, the circulating water jacket is provided with a water inlet and a water outlet, the water inlet is arranged at the bottom, the water outlet is arranged at the top, the water inlet is connected to the water inlet pipe, and the water outlet is connected to the outlet pipe. 4. The calciner according to claim 3, characterized in that, the fire viewing port cover is a high temperature resistant glass cover. 5. The calciner according to claim 3, characterized in that, the fire observation port cover is provided with a high temperature resistant glass observation window. 6 . The calciner according to claim 1 , wherein the cooling water pipe is composed of several end-to-end pipe sections, and the pipe sections include horizontally arranged main pipe sections and vertically arranged connecting pipe sections. 7. The calciner according to claim 6, characterized in that, one end of the cooling water pipe connected to the water supply source is arranged at the lower part of the furnace body, and one end of the cooling water pipe connected to the boiler is arranged at the Describe the upper part of the furnace body. 8. The calciner according to claim 1, characterized in that, the cooling water pipes are composed of several independent pipes arranged transversely. 9. The calciner according to claim 8, wherein one end of each of the independent pipes is respectively connected to the water supply source, and the other end is respectively connected to the boiler. 10 . The calciner according to claim 8 , characterized in that, one end of each independent pipe is connected to the water supply source after being collected, and the other end is connected to the boiler after being collected. 11 .