CN212620083U

CN212620083U - Chemical catalyst gas radiation shuttle kiln

Info

Publication number: CN212620083U
Application number: CN202020942471.5U
Authority: CN
Inventors: 朱刚勇; 欧杰
Original assignee: Huanggang City Zhongrui Kiln Co ltd
Current assignee: Huanggang City Zhongrui Kiln Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-02-26
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a chemical catalyst gas radiation shuttle kiln, which comprises a kiln main body, wherein one side of the kiln main body is provided with an opening and a kiln car which can enter the kiln main body; the kiln main body is connected with a gas combustion radiation system and a waste gas exhaust system, and the gas combustion radiation system is connected with a combustion-supporting system and a smoke exhaust system. The utility model provides a chemical industry catalyst gas radiation shuttle kiln can avoid the flue gas that the gas burning produced and the chemical industry catalyst contact of treating the burning, and the chemical industry catalyst variety that can process is many, and the energy saving.

Description

Chemical catalyst gas radiation shuttle kiln

Technical Field

The utility model relates to a kiln field especially relates to a chemical industry catalyst gas radiation shuttle kiln.

Background

The shuttle kiln is a common industrial furnace and has the characteristics of small floor area, simple structure, low construction cost, small temperature difference in the kiln, flexible and convenient production and adjustment and the like. Therefore, the shuttle kiln is widely used in the industries such as daily use, chemical engineering process, sanitary ceramics and the like. The kiln is flexible and convenient when firing small-batch and various products, and is necessary heating and firing equipment for the industries. Most of the conventional shuttle kilns are open flame combustion. The flame directly contacts the product, and because the residence time of the flame in the kiln is short, the flame can not fully exchange heat with the workpiece, most of heat is directly discharged into the atmosphere through the flue, and a large amount of heat energy is wasted. In addition, factors such as heat dissipation of a kiln body are added, so that the heat efficiency is only three to five percent, and the energy consumption accounts for about forty percent of the production cost. Therefore, how to save energy is a key problem in reducing production cost in production. Although some kilns adopt a plurality of measures on energy conservation, the energy conservation effect is still not ideal due to the structure and the heating mode of the kilns.

In addition, part of the chemical catalysts cannot be contacted with the flue gas generated by burning natural gas or coal gas in the burning stage, so that only an electric heating mode is adopted, and the energy cost of manufacturers is overlarge. With the increasing development of industry, the demand of chemical catalysts is continuously increasing, the competition among manufacturers is also more and more intense, and reducing the energy cost in the production of the chemical catalysts becomes one of the most direct and effective ways to reduce the product cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a chemical industry catalyst gas radiation shuttle kiln can avoid the flue gas that the gas burning produced and the chemical industry catalyst contact of treating the burning, and the chemical industry catalyst variety that can process is many, and the energy saving.

In order to achieve the purpose, the utility model provides a chemical catalyst fuel gas radiation shuttle kiln, which comprises a kiln main body, wherein one side of the kiln main body is provided with an opening and a kiln car which can enter the kiln main body; the kiln main body is connected with a gas combustion radiation system and a waste gas exhaust system, and the gas combustion radiation system is connected with a combustion-supporting system and a smoke exhaust system.

As a further improvement of the utility model, the gas combustion radiation system comprises a gas supply pipeline, a gas radiation type burner and a gas radiation pipe which are connected in sequence; the gas supply pipeline and the gas radiation type burner are positioned outside the kiln main body, and the gas radiation pipe extends into the kiln main body.

As a further improvement of the utility model, the gas radiant tube is internally filled with a heat accumulator.

As a further improvement of the utility model, the heat accumulator is a honeycomb ceramic heat accumulator.

As a further improvement of the utility model, the gas radiant tube comprises an outer tube and an inner tube which are sleeved with each other; the inner wall of the outer pipe and the outer wall of the inner pipe are arranged at intervals; one end of the inner pipe is communicated with the gas radiation type burner, and the other end of the inner pipe is communicated with the inner side of the top end of the outer pipe; the flue gas output end of the gas combustion radiation system is positioned at one side of the gas radiation type burner and is communicated with the bottom end of the outer pipe; and the smoke output end of the gas combustion radiation system is connected with the smoke exhaust system.

As a further improvement, the combustion-supporting system includes the combustion-supporting pipeline that communicates with the gas radiation formula nozzle, be connected with combustion-supporting fan on the combustion-supporting pipeline.

As a further improvement, the exhaust system comprises an exhaust pipeline communicated with the flue gas output end of the gas combustion radiation system, and an exhaust fan is connected to the exhaust pipeline.

As a further improvement, the waste gas exhaust system comprises a waste gas exhaust pipeline connected with the kiln body, and a waste gas exhaust fan is connected to the waste gas exhaust pipeline.

As a further improvement of the utility model, the kiln car comprises a bottom frame, and a moving mechanism is connected on the bottom frame; one side of the underframe is connected with a kiln door; refractory bricks are laid on the upper side of the underframe and the inner side of the kiln door.

Advantageous effects

Compared with the prior art, the utility model discloses a chemical industry catalyst gas radiation shuttle kiln's advantage does:

1. when the chemical catalyst needs to be fired, the chemical catalyst is placed on the kiln car and pushed into the kiln main body. The kiln body is provided with heat energy through the gas combustion radiation system, and the combustion efficiency in the gas combustion radiation system is improved through the combustion-supporting system. Because the gas combustion radiation system only can enter the kiln main body by radiated heat, the generated flue gas is directly discharged through the exhaust system, and the flue gas does not enter the kiln main body, so that the flue gas does not contact with the chemical catalyst, and the flue gas does not react with the chemical catalyst, thereby ensuring the normal burning of the chemical catalyst.

2. The heat accumulator is filled in the gas radiation pipe, so that the residence time of the flue gas in the gas radiation pipe can be prolonged, and the heat energy of the flue gas is fully utilized, thereby achieving the purposes of saving energy and reducing consumption.

3. The refractory bricks on the kiln car can play a good role in fire resistance and heat preservation, and the heat loss from the kiln door of the kiln car is reduced as much as possible.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of a chemical catalyst gas fired radiant shuttle kiln;

FIG. 2 is a top view of a chemical catalyst gas fired radiant shuttle kiln;

FIG. 3 is a view taken along line A-A of FIG. 1;

FIG. 4 is an enlarged partial cross-sectional view of a gas fired radiant system.

Detailed Description

Embodiments of the present invention will now be described with reference to the accompanying drawings.

Examples

The utility model discloses a concrete embodiment is as shown in fig. 1 to fig. 4, a chemical industry catalyst gas radiation shuttle kiln, including kiln main part 1, kiln main part 1 one side is equipped with the opening and can gets into kiln car 6 in kiln main part 1. The kiln main body 1 is connected with a gas combustion radiation system 3 and an exhaust gas discharge system 2, and the gas combustion radiation system 3 is connected with a combustion-supporting system 4 and an exhaust gas discharge system 5.

The gas combustion radiation system 3 comprises a gas supply pipeline 34, a gas radiation type burner 31 and a gas radiation pipe 32 which are connected in sequence. The gas supply pipeline 34 and the gas radiation type burner 31 are positioned outside the kiln main body 1, and the gas radiation pipe 32 extends into the kiln main body 1. In this embodiment, the gas combustion radiation system 3 is plural, and is arranged in two vertical rows and arranged on the same side wall of the kiln main body 1. The gas supply pipeline 34 is made of 310S material and is high temperature resistant.

The gas radiant tube 32 is filled with a heat accumulator 33. Preferably, the thermal mass 33 is a honeycomb ceramic thermal mass.

The gas radiation pipe 32 includes an outer pipe 322 and an inner pipe 321 which are sleeved with each other. The inner wall of the outer pipe 322 is spaced apart from the outer wall of the inner pipe 321. One end of the inner pipe 321 is communicated with the gas radiation type burner 31, and the other end is communicated with the inner side of the top end of the outer pipe 322. The flue gas output end of the gas combustion radiation system 3 is positioned at one side of the gas radiation type burner 31 and is communicated with the bottom end of the outer pipe 322. The flue gas output end of the gas combustion radiation system 3 is connected with a smoke exhaust system 5. The heat accumulator 33 is filled between the outer pipe 322 and the inner pipe 321. The heat storage body 33 may be filled with the outer pipe 322 and the inner pipe 321 completely.

The combustion-supporting system 4 comprises a combustion-supporting pipeline 42 communicated with the gas radiation type burner 31, and a combustion-supporting fan 41 is connected to the combustion-supporting pipeline 42. The combustion-supporting system 4 is used for injecting air into the gas radiation type burner 31, and the air and the gas are mixed to play a combustion-supporting role. The combustion-supporting duct 42 is connected to the gas radiation burner 31 by a plurality of branch pipes.

The smoke exhaust system 5 comprises a smoke exhaust pipeline 51 communicated with the smoke output end of the gas combustion radiation system 3, and the smoke exhaust pipeline 51 is connected with a smoke exhaust fan 52. In this embodiment, the flue gas exhaust pipeline 51 includes a first main pipeline and a plurality of first branch pipelines that are connected, and the first branch pipeline corresponds to the number of the gas combustion radiation systems 3 one by one. Each first branch pipeline is respectively communicated with the flue gas output end of each gas combustion radiation system 3, and the first main pipeline is communicated with the flue gas exhaust fan 52.

The waste gas discharging system 2 comprises a waste gas discharging pipeline 21 connected with the top of the kiln main body 1, and a waste gas discharging fan 22 is connected to the waste gas discharging pipeline 21.

The kiln car 6 comprises a bottom frame 61, and a moving mechanism is connected to the bottom frame 61. A kiln door 62 is connected to one side of the bottom frame 61. Refractory bricks 64 are laid on both the upper side of the underframe 61 and the inner side of the kiln door 62. The moving mechanism on the underframe 61 of the kiln car 6 comprises wheels and a motor 63, and the motor 63 is linked with the wheels. The opening of the kiln main body 1 is provided with a guide rail 11 extending outwards, and wheels of the kiln car 6 are matched with the guide rail 11 in a rolling way.

The metal frame of the kiln main body 1 is formed by welding high-quality special-shaped square steel tubes. The kiln main body 1 is designed according to the capacity requirement, and a refractory heat-insulating system is manufactured and built in a whole kiln factory by welding. According to the requirements of the process and the use temperature, a proper light refractory and heat-insulating material is selected.

The chemical catalyst gas radiation shuttle kiln uses gas radiation for heating, can avoid the contact of the flue gas generated by gas combustion and a chemical catalyst, can prolong the heating process of hot flue gas to a workpiece in a kiln main body by adding the ceramic heat accumulator in the radiation pipe, effectively increases the heat exchange time, improves the heat efficiency of the kiln, achieves the purposes of energy conservation and consumption reduction, and can reduce the firing energy cost of the chemical catalyst production.

The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to the above-disclosed embodiments, and various modifications, equivalent combinations, which are made according to the essence of the present invention, should be covered.

Claims

1. A chemical catalyst fuel gas radiation shuttle kiln comprises a kiln main body (1), and is characterized in that one side of the kiln main body (1) is provided with an opening and a kiln car (6) capable of entering the kiln main body (1); the kiln main body (1) is connected with a gas combustion radiation system (3) and a waste gas discharge system (2), and the gas combustion radiation system (3) is connected with a combustion-supporting system (4) and a smoke gas discharge system (5).

2. The chemical catalyst gas radiation shuttle kiln as claimed in claim 1, wherein the gas combustion radiation system (3) comprises a gas supply pipeline (34), a gas radiation burner (31) and a gas radiation pipe (32) which are connected in sequence; the gas supply pipeline (34) and the gas radiation type burner (31) are positioned outside the kiln main body (1), and the gas radiation pipe (32) extends into the kiln main body (1).

3. A chemical catalyst gas radiation shuttle kiln according to claim 2, characterized in that the gas radiation pipe (32) is filled with a heat storage body (33).

4. A chemical catalyst gas radiation shuttle kiln according to claim 3, wherein the heat accumulator (33) is a honeycomb ceramic heat accumulator.

5. The chemical catalyst gas radiation shuttle kiln as claimed in claim 3 or 4, wherein the gas radiation pipe (32) comprises an outer pipe (322) and an inner pipe (321) which are sleeved with each other; the inner wall of the outer pipe (322) and the outer wall of the inner pipe (321) are arranged at intervals; one end of the inner pipe (321) is communicated with the gas radiation type burner (31), and the other end is communicated with the inner side of the top end of the outer pipe (322); the flue gas output end of the gas combustion radiation system (3) is positioned at one side of the gas radiation type burner (31) and is communicated with the bottom end of the outer pipe (322); and the smoke output end of the gas combustion radiation system (3) is connected with the smoke exhaust system (5).

6. The chemical catalyst gas radiation shuttle kiln as claimed in claim 2, wherein the combustion-supporting system (4) comprises a combustion-supporting pipeline (42) communicated with the gas radiation burner (31), and a combustion-supporting fan (41) is connected to the combustion-supporting pipeline (42).

7. The chemical catalyst gas radiation shuttle kiln as claimed in claim 5, wherein the smoke exhaust system (5) comprises a smoke exhaust pipeline (51) communicated with the smoke output end of the gas combustion radiation system (3), and the smoke exhaust pipeline (51) is connected with a smoke exhaust fan (52).

8. The chemical catalyst gas radiation shuttle kiln as recited in claim 1, wherein the exhaust gas system (2) comprises an exhaust gas duct (21) connected with the kiln body (1), and an exhaust gas fan (22) is connected to the exhaust gas duct (21).

9. The chemical catalyst gas radiation shuttle kiln as recited in claim 1, wherein the kiln car (6) comprises a bottom frame (61), and a moving mechanism is connected to the bottom frame (61); one side of the bottom frame (61) is connected with a kiln door (62); refractory bricks (64) are laid on the upper side of the bottom frame (61) and the inner side of the kiln door (62).