CN210486491U

CN210486491U - Environment-friendly energy-saving furnace for reduction granulation of waste carbon-containing bricks

Info

Publication number: CN210486491U
Application number: CN201921479414.1U
Authority: CN
Inventors: 于海秋; 谭焱磊; 李孝杰
Original assignee: Dashiqiao City East Welfare Magnesium Refractory Co Ltd
Current assignee: Dashiqiao City East Welfare Magnesium Refractory Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-05-08
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses an old and useless carbonaceous brick reduction granulation environmental protection and energy saving stove, the old and useless carbonaceous brick thermolysis of mainly used. The furnace comprises a furnace body, a dust hood arranged above the furnace body, a dust falling chamber connected with the dust hood, and an annular air sleeve arranged along the outer circumference of the furnace body, wherein the upper part and the lower part of the annular air sleeve are respectively provided with an upper air assisting pipe and a lower air assisting pipe which are uniformly distributed from the outside of the furnace body, a combustion frame is arranged below a furnace chamber, a water tank is arranged below the furnace body, and a furnace basket capable of being hoisted is arranged in the furnace body. The furnace body comprises a furnace wall, the outer layer of the furnace wall is a furnace shell, the middle part of the furnace wall is a fire-resistant heat-insulating layer, and the inner layer of the furnace wall is a heat accumulator working layer. The carbon-containing waste bricks are ignited by using inflammable matters such as wood bars and the like by adopting an annular air sleeve and an upper auxiliary air pipe, so that the reduction granulation of raw materials such as magnesia and the like is finished by self combustion of the carbon-containing waste bricks without new fuel, and the energy is saved; the dust collecting hood and the dust falling chamber can collect dust without polluting environment, thereby achieving the purpose of environmental protection and saving energy by utilizing the generated waste heat.

Description

Environment-friendly energy-saving furnace for reduction granulation of waste carbon-containing bricks

Technical Field

The utility model relates to a waste carbon-containing brick reduction granulation device, in particular to a waste carbon-containing brick reduction granulation environment-friendly energy-saving furnace.

Background

The carbon-containing bricks generally comprise carbon-containing bricks such as magnesia carbon bricks, magnesia-alumina carbon bricks, magnesia-calcium carbon bricks, aluminum silicon carbide carbon bricks and the like, at present, because the environmental protection requirement and the market competition of refractory materials are intensified, the prices of mineral product raw materials such as magnesia, alumina, corundum and the like are continuously increased, and in order to reduce the production cost, save energy and reduce consumption, the recycling of the carbon-containing bricks and devices become the research and development focus of manufacturers in the industry. The early recycling of the waste bricks generally adopts a sorting method to remove the deteriorated layer and dry the bricks after hydration treatment, but the bricks are always not completely hydrated in use, thereby causing green bricks to crack and having high rejection rate. In addition, a part of resin or graphite in the hydrated material is oxidized in the using process, so that the ash content in the hydrated material is large, the impurity content is high, the components are unstable, and the using effect of the magnesia carbon brick is influenced. At present, furnace kilns are also adopted to treat and recycle waste refractory bricks, but the furnace kilns have the problems of large energy consumption, serious pollution and the like. In addition, the kiln adopting kiln recovery treatment basically crushes the waste carbon bricks firstly, then carries out sintering treatment, and carries out secondary crushing on the raw materials containing the carbon bricks, so that the raw materials are thinner, and the using effect of the product is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a novel old and useless carbonaceous brick reduction granulation environmental protection and energy saving stove that can energy-conservation, environmental protection and heat comprehensive utilization.

The utility model provides a technical scheme that above-mentioned technical problem adopted is: the utility model provides a waste carbon-containing brick reduction granulation environmental protection and energy saving stove, includes the furnace body, still including setting up the dust cage in the furnace body top, the dust drop room of being connected with the dust cage, set up annular wind cover along the outer circumference of furnace body, set up respectively on the upper portion and the lower part of annular wind cover and help tuber pipe and lower helping the tuber pipe by the outside inside equipartition of entering of furnace body, set up the frame that burns in furnace below, set up the water tank below the furnace body, set up the hoistable furnace basket within the furnace body.

The utility model provides an in the preferred embodiment of environmental protection and energy saving stove, the furnace body includes the brickwork, and the skin of brickwork is the stove outer covering, and the centre is fire-resistant heat preservation, and the inlayer is heat accumulator working layer.

In a preferred embodiment of the environment-friendly energy-saving furnace provided by the utility model, the number of the upper air-assisted pipe and the number of the lower air-assisted pipes are respectively 4-8.

Furthermore, the number of the upper air assisting pipes and the number of the lower air assisting pipes are respectively 6.

In a preferred embodiment of the environment-friendly energy-saving furnace provided by the utility model, the furnace further comprises a platform arranged on the furnace body.

Furthermore, an electric hoist is arranged on a platform of the furnace body.

In a preferred embodiment of the environment-friendly energy-saving furnace provided by the utility model, the furnace further comprises a furnace door arranged at the lower part of the furnace body, and the number of the furnace doors is 4.

The utility model has the advantages that: the method adopts an annular air sleeve and an upper and lower air assisting pipe, after the carbon-containing waste brick is ignited by inflammable matters such as a wood rod and the like, no new fuel is needed, the carbon-containing waste brick is combusted by the carbon-containing waste brick to complete the reduction granulation of raw materials such as magnesia and the like, the carbon-containing brick is subjected to granularity reduction to form magnesia, alumina, corundum and the like, the graphite and resin are completely decarburized, and the heat after combustion is completely recycled, so that the energy is saved; the dust collection cover and the dust falling chamber collect dust, so that the environment is not polluted, and the aim of environmental protection is fulfilled; the water tank is placed below the furnace body, and in the burning reduction process of the carbon-containing waste bricks, the temperature is as high as 800-1000 ℃, the water tank is arranged at the bottom of the furnace body, so that water in the water tank can be effectively heated, hot water can be used as water for bathing of workers, the temperature of raw materials such as magnesia after burning is rapidly reduced, and the energy can be saved by utilizing the generated waste heat.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and 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 without inventive work, wherein:

FIG. 1 is a schematic structural view of an environment-friendly energy-saving furnace according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the furnace wall structure;

fig. 3 is a perspective view of the furnace frame structure.

The reference numbers in the figures denote: 1-dust collecting cover, 2-furnace body, 3-platform, 4-furnace door, 5-water inlet pipe, 6-water tank, 7-dust falling chamber, 8-dust collecting fan, 9-frequency conversion fan, 10-upper air assisting pipe, 11-lower air assisting pipe, 12-furnace wall, 13-combustion frame, 14-water outlet pipe, 15-furnace shell, 16-fire-resistant heat-insulating layer, 17-heat accumulator working layer, 18-electric hoist, 19-annular wind sleeve, 20-furnace frame and 21-furnace grate

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the waste carbon-containing brick reduction granulation environment-friendly energy-saving furnace comprises a furnace body 2, a furnace basket 20 capable of being hung is arranged in the furnace body 2, the furnace body 2 comprises a furnace wall 12, the outer layer of the furnace wall 12 is a furnace shell 15, the middle part is a fire-resistant insulating layer 16, and the inner layer is a heat accumulator working layer 17. The dust collecting hood 1 is arranged above the furnace body 2, and the dust falling chamber 7 is connected with the dust collecting hood, and the dust falling chamber 7 is connected with the dust collecting fan 8. An annular air sleeve 19 connected with the variable frequency fan 9 is arranged along the outer circumference of the furnace body 2, and the annular air sleeve 19 is sleeved on the outer circumference of the furnace shell 15. The upper part of the annular wind sleeve 19 is provided with upper wind-assisting pipes 10 which are uniformly distributed and enter the interior from the outside of the furnace body, the lower part of the annular wind sleeve 19 is provided with lower wind-assisting pipes 11 which enter the interior from the outside of the furnace body, the number of the upper wind-assisting pipes 10 and the number of the lower wind-assisting pipes 11 are respectively 4-8, and the preferred number is 6. And a combustion frame 13 is arranged below the hearth and plays a role of a support.

A water tank 6 is arranged below the furnace body, the shape of the water tank can be cylindrical or square, a water inlet pipe 5 is arranged on one side of the water tank, and a water outlet pipe 14 is arranged on the other side of the water tank.

A platform 3 is arranged above the furnace body, and a feeding hopper 18 for feeding is arranged on the platform 3. The lower part of the furnace body 2 is provided with furnace doors 4, and the number of the furnace doors 4 is 4.

When the environment-friendly energy-saving furnace works, waste carbon-containing bricks are directly stacked on a grate 21 in a furnace basket 20 and are hoisted into a furnace body by an electric hoist 18 above the furnace, waste wood is placed on a combustion frame 13 to be ignited, a variable frequency fan 9 and a dust collection fan 8 are started, air is supplied into a furnace chamber by an upper air-assisting pipe 10 and a lower air-assisting pipe 11, and the carbon-containing waste bricks are fully combusted. The flue gas is sucked into the dust reduction chamber 7 by the dust hood 1. The water inlet pipe 5 is opened to fill the water tank 6 with water, and after the materials are completely combusted, the materials are discharged from the furnace door 4 to complete the work of a furnace charge.

The furnace body is built by adopting refractory materials, the outer layer is made of a heat-insulating layer 16, and the heat-insulating layer is made of low-heat-conductivity heat-insulating casting materials. The inner layer adopts a heat accumulator working layer 17, and the heat accumulator is a heat accumulation refractory brick to ensure the temperature of the inner bore of the kiln.

The above mentioned is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent structures or equivalent processes that are made by the content of the present invention can be used for conversion, or directly or indirectly applied to other related technical fields. The same reason is included in the patent protection scope of the utility model.

Claims

1. The utility model provides a waste carbon-containing brick reduction granulation environmental protection and energy saving stove, including furnace body (2), a serial communication port, still including setting up dust cage (1) in furnace body (2) top, dust precipitation room (7) of being connected with the dust cage, set up annular wind cover (19) along furnace body (2) outer circumference, upper portion and the lower part of annular wind cover (19) set up respectively and get into last air-assisted pipe (10) and lower air-assisted pipe (11) of inside equipartition by the furnace body outside, set up combustion frame (13) below furnace, set up water tank (6) below the furnace body, but set up hoist and mount stove basket (20) within furnace body (2).

2. The furnace according to claim 1, characterized in that the furnace body (2) comprises a furnace wall (12), the outer layer of the furnace wall (12) is a furnace shell (15), the middle layer is a fire-resistant insulating layer (16), and the inner layer is a heat accumulator working layer (17).

3. The furnace of claim 1, wherein the number of the upper auxiliary air ducts (10) and the number of the lower auxiliary air ducts (11) are respectively 4-8.

4. The furnace of claim 3, wherein the number of the upper auxiliary air ducts (10) and the number of the lower auxiliary air ducts (11) are 6.

5. An environmentally friendly energy saving stove according to claim 1, characterized by further comprising a platform (3) disposed above the stove body.

6. An environmentally friendly and energy saving stove according to claim 1, characterized in that an electric hoist (18) is mounted on the platform (3) of the stove body.

7. The environmental-friendly energy-saving furnace according to any one of claims 1 to 5, further comprising furnace doors (4) arranged at the lower part of the furnace body (2), wherein the number of the furnace doors (4) is 4.