CN206112949U - Segmentation is preheated type and is burned pyrolysis furnace - Google Patents

Abstract

The utility model discloses a segmented preheating type incineration and cracking furnace, which comprises a furnace body, a furnace cavity, a heat exchange cavity, a central plate of the furnace cavity, a blowing pipe and a slag collection cavity. There is a one-way valve inside the connection between the feeding pipe, the lower end of the feeding pipe and the furnace body, a guide plate is arranged around the upper end of the side wall of the furnace body, a motor is arranged in the middle of the upper end of the furnace body, and a rotating shaft is connected to the output end of the motor, and the lower end of the rotating shaft There is a material distribution block under the guide plate, the lower end of the guide plate is located on the periphery of the material distribution block, and a partition is provided. The furnace body is provided with a furnace cavity under the partition. A blowing duct is connected to both sides of the annular air induction channel, a base is connected to the lower end of the furnace body, and a slag collection chamber is arranged on the upper end of the middle part of the base. The utility model adopts segmental preheating to improve the incineration efficiency of materials, and adds structures such as material distribution devices to avoid local overheating from affecting incineration.

Description

A segmented preheating type incineration and cracking furnace

technical field

The utility model relates to a cracking furnace, in particular to a segmented preheating type incineration and cracking furnace.

Background technique

As an important branch of chemistry, energy chemistry is an important scientific and technological basis for mastering the comprehensive utilization of coal, understanding non-coal mineral energy, popularizing knowledge of new energy and renewable energy, and realizing energy scientific utilization and sustainable development. It uses the theory and technology of chemistry and chemical engineering to solve the problems of energy conversion, energy storage and energy transmission, so as to better serve the human economy and life. Chemical changes are accompanied by energy changes, and the essence of energy use is the transformation process of energy forms. Energy chemistry realizes energy conversion and storage directly through chemical reactions or indirectly through chemical preparation materials technology.

In the field of energy and chemical industry, the cracking furnace is a commonly used chemical equipment, especially in the recycling of organic waste, the tail gas that can be extracted from chemical products and energy materials can be obtained through the processing of the cracking furnace.

In the existing cracking furnace, the material directly enters the furnace chamber for combustion, which has the problems of large pollution and poor processing environment; at the same time, direct feeding may easily cause uneven material distribution and local overheating, and the lack of material when directly feeding Preheating process, which will waste the heat of combustion in the furnace cavity, and at the same time, it will affect the combustion efficiency; general cracking furnaces need to pass air to maintain the combustion of the materials in the furnace cavity, and the high-speed air passing through will burn during the gas flow process. The heat in the furnace cavity is taken away, and the air temperature is too low to affect the combustion effect of the material.

Utility model content

The purpose of this utility model is to provide a segmented preheating type incineration and cracking furnace to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A segmented preheating type incineration and cracking furnace, comprising a furnace body, a furnace chamber, a heat exchange chamber, a central plate of the furnace chamber, a blowing pipe and a slag collection chamber, and feed pipes are arranged symmetrically on both sides of the upper end of the furnace body, and the A one-way valve is arranged inside the connection between the lower end of the feed pipe and the furnace body, a guide plate is arranged around the upper end of the side wall of the furnace body, a motor is arranged in the middle of the upper end of the furnace body, and the output end of the motor is connected to a There is a rotating shaft, the lower end of the rotating shaft is located below the guide plate and a distributing block is arranged, the lower end of the guide plate is located on the periphery of the distributing block and a partition is provided, and the lower end of the partition is located in the furnace body. A furnace chamber, a heat exchange chamber is provided between the periphery of the partition and the furnace body, and a furnace bottom is provided at the lower end of the furnace body below the furnace chamber, and the surface of the furnace bottom has a conical groove, so The middle part of the furnace bottom is inlaid with a central plate of the furnace cavity, and the middle part of the central plate of the furnace cavity is provided with a filter screen. A blower is provided, blowing ducts are connected to both sides of the annular air induction channel, an air volume control valve is connected to the left end of the annular air induction channel, a base is connected to the lower end of the furnace body, and slag is installed at the upper end of the middle part of the base. A collection chamber, the middle part of the slag collection chamber is provided with an ash valve, the upper part of the right wall of the furnace body is provided with an exhaust pipe, and the exhaust pipe is provided with an exhaust valve.

As a further solution of the utility model: the one-way valve fits with the inner wall of the feeding pipe, and the one-way valve is fixed at the lower end of the feeding pipe by a torsion spring.

As a further solution of the present utility model: the guide plate is a cylindrical structure in the shape of a truncated cone, the upper end of the guide plate communicates with the upper end of the furnace body, and the lower end of the furnace body shrinks inward and opens.

As a further solution of the present invention: the motor body and the upper end of the furnace body are welded and fixed, and the output end of the motor passes through the upper end of the furnace body and extends inward.

As a further solution of the present invention: the diameter of the material distribution block is larger than the opening at the lower end of the guide plate.

As a further solution of the utility model: the blowing pipe passes through the furnace body and enters the furnace chamber, and the middle part of the blowing pipe is provided with a plurality of uniformly arranged round holes.

As a further solution of the utility model: the slag collection chamber passes through the bottom of the furnace body and is welded and fixed to the edge of the central plate of the furnace chamber.

Compared with the prior art, the beneficial effect of the utility model is: the material enters the furnace body through the feed pipe, the one-way valve rotates downward when the material enters, and the one-way valve recovers under the action of the torsion spring after the material is put in. It fits with the inner wall of the feed pipe, which can prevent the smoke and dust generated during incineration from rising through the feed pipe, and avoid polluting the environment and affecting the health of the operators; after the materials enter the furnace body, they slide down through the guide plate and fall on the rotating table. The distribution block is evenly sprinkled on the bottom of the furnace cavity. This setting can preheat the material when the material enters, which can improve the combustion efficiency, obtain a better combustion effect, and improve the use of energy. At the same time The material is evenly arranged after falling to avoid burning difficulties caused by local overheating; after the material falls into the bottom of the furnace chamber and the center plate of the furnace chamber, the material is burned and the blower is turned on to discharge the gas from the blowing pipe through the annular air induction channel to promote For the combustion of materials, the annular air induction channel surrounds the side wall of the furnace body. After the gas is preheated, it will not affect the temperature in the furnace chamber, which can ensure the quality of combustion.

Description of drawings

Fig. 1 is a structural schematic diagram of a staged preheating type incineration and cracking furnace.

Fig. 2 is a structural schematic diagram of the center plate of the furnace cavity in a staged preheating type incineration and cracking furnace.

In the figure: 1-furnace body, 2-feed pipe, 3-one-way valve, 4-guide plate, 5-motor, 6-rotating shaft, 7-distribution block, 8-baffle, 9-furnace cavity, 10-Heat exchange chamber, 11-Furnace bottom, 12-Center plate of furnace chamber, 13-Ring guide channel, 14-Blower, 15-Blowing pipe, 16-Air volume control valve, 17-Base, 18-Slag collection chamber, 19 -ash valve, 20-exhaust pipe, 21-exhaust valve.

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. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1 to 2. In the embodiment of the present utility model, a segmented preheating type incineration and cracking furnace includes a furnace body 1, a furnace chamber 9, a heat exchange chamber 10, a furnace chamber center plate 12, a blowing pipe 15 and slag A collection chamber 18, feed pipes 2 are symmetrically arranged on both sides of the upper end of the furnace body 1, and materials enter the furnace body 1 through the feed pipe 2, and the lower end of the feed pipe 2 is connected to the furnace body 1 There is a one-way valve 3 inside, the one-way valve 3 fits with the inner wall of the feed pipe 2, and the one-way valve 3 is fixed on the lower end of the feed pipe 2 by a torsion spring. The one-way valve 3 rotates downward, and smoke and dust will be generated when the device burns. The one-way valve 3 can prevent the smoke and dust from rising through the feed pipe 2. The upper end of the side wall of the furnace body 1 is surrounded by a guide plate 4 , the guide plate 4 is a conical cylindrical structure, the upper end of the guide plate 4 communicates with the upper end of the furnace body 1, the lower end of the furnace body 1 shrinks inward and opens, and the material enters the furnace body 1 The guide plate 4 slides down, and the middle part of the upper end of the furnace body 1 is provided with a motor 5, the main body of the motor 5 is welded and fixed to the upper end of the furnace body 1, and the output end of the motor 5 passes through the furnace body 1. The upper end extends inward. The output end of the motor 5 is connected with a rotating shaft 6. The rotation of the motor 5 drives the rotating shaft 6 to rotate. The lower end of the rotating shaft 6 is located below the guide plate 4 and is provided with a distribution block 7. The diameter of the distributing block 7 is larger than the opening at the lower end of the guide plate 4, and the material that falls from the guide plate 4 falls on the distributing block 7 driven by the motor 5 and is thrown out. In this way, the material can be evenly thrown into the bottom of the device to avoid material accumulation. The lower end of the guide plate 4 is located at the periphery of the distribution block 7 and is provided with a partition 8 between the partition 8 and the side wall of the furnace body 1. There is a gap between them, and a furnace chamber 9 is arranged in the furnace body 1 below the partition board 8, and the furnace chamber 9 is used for incineration of materials. Heat exchange chamber 10, the high temperature generated by the furnace chamber 9 when burning materials can pass through the heat exchange chamber 10 to heat the inner space of the guide plate 4 and the partition plate 8 respectively, and when the materials pass through, it can The temperature is raised in advance, so that the material can be preheated, and the combustion efficiency of the material can be improved. The lower end of the furnace body 1 is located below the furnace cavity 9 and is provided with a furnace bottom 11, and the surface of the furnace bottom 11 has a conical groove. , such setting can prevent the material from being too dispersed, and heat accumulation can promote combustion. The middle part of the furnace bottom 11 is inlaid with a furnace cavity center plate 12, and the middle part of the furnace cavity center plate 12 has a filter screen, which can remove the remaining material after incineration. Ash powder leaks down, and the outer wall of the furnace body 1 is located at the periphery of the furnace cavity 9 and is provided with an annular air-introduction channel 13, and the right end of the annular air-introduction channel 13 is connected with a blower 14, and the air blower 14 passes air into the In the annular air-introducing channel 13, the temperature can be raised after contacting the outer wall of the furnace body 1, and the two sides of the annular air-inducing channel 13 are connected with blowing pipes 15, and the blowing pipes 15 pass through the furnace body 1 and enter the In the furnace cavity 9, the middle part of the blowing duct 15 has a plurality of evenly arranged round holes, when After the gas in the annular air-introducing channel 13 is preheated, it enters the furnace cavity 9 through the blowing duct 15 to promote the combustion of the material. This setting can avoid the local overheating of the material and improve the combustion efficiency. At the same time, the preheated air also The temperature in the furnace cavity 9 will not be reduced, and the left end of the annular air induction passage 13 is connected with an air volume control valve 16, and the air volume control valve 16 can control the passage of the annular air induction passage 13 into the blower by rotating. The air flow in the pipeline 15 can be adjusted to control the combustion of materials in the furnace chamber 9. The lower end of the furnace body 1 is connected with a base 17, and the upper end of the middle part of the base 17 is provided with a slag collection chamber 18. The slag The collection cavity 18 passes through the bottom of the furnace body 1 and is welded and fixed to the edge of the furnace cavity center plate 12, and the ash powder leaked from the furnace cavity center plate 12 can enter the slag collection cavity 18 for collection and processing. The middle part of the slag collection chamber 18 is provided with an ash discharge valve 19, which can control the discharge of ash. The upper part of the right wall of the furnace body 1 is provided with an exhaust pipe 20. When the material is burned, a large amount of gas generated , steam and dust can be discharged through the exhaust pipe 20, and the gas discharged from the exhaust pipe 20 can be treated to remove impurities and condense and obtain some chemical materials. The exhaust pipe 20 is provided with an exhaust valve 21, The exhaust valve 21 can control the discharge of gas from the exhaust pipe 20 .

The working principle of the utility model is: the material enters the furnace body 1 through the feed pipe 2, and the one-way valve 3 rotates downward when the material enters, and when the material is put in, the one-way valve 3 returns to and The fit state of the inner wall of the feed pipe 2 can prevent the smoke and dust generated during incineration from rising through the feed pipe 2, and avoid polluting the environment and affecting the health of the operators; after the materials enter the furnace body 1, they slide down through the guide plate 4 and fall on the The rotating distributing block 7 is evenly sprinkled on the bottom of the furnace chamber 9. Such a setting can preheat the material when the material enters, which can improve the combustion efficiency, obtain a better combustion effect, and increase energy consumption. At the same time, the material is evenly distributed after falling into it, so as to avoid burning difficulties caused by local overheating; after the material falls into the furnace bottom 11 and the center plate 12 of the furnace cavity under the furnace chamber 9, the material is burned and the blower 14 is turned on to pass through the annular air induction channel 13. The gas is discharged from the blowing duct 15 to promote the combustion of the material. The annular air induction channel 13 surrounds the side wall of the furnace body 1. After the gas is preheated, the temperature in the furnace cavity 9 will not be affected, and the quality of combustion can be guaranteed; After opening the exhaust valve 21, the gas, steam and a small amount of dust generated by combustion will be discharged through the exhaust pipe 20, and the ashes generated after combustion will eventually leak into the slag collection chamber 18 through the furnace cavity center plate 12. After the ash outlet valve 19 is opened, The ashes can be collected centrally.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. A segmented preheating type incineration and cracking furnace, comprising a furnace body, a furnace chamber, a heat exchange chamber, a furnace chamber center plate, a blowing duct and a slag collection chamber, is characterized in that, both sides of the upper end of the furnace body are symmetrically arranged with A feed pipe, a one-way valve is arranged inside the joint between the lower end of the feed pipe and the furnace body, a guide plate is arranged around the upper end of the side wall of the furnace body, a motor is arranged in the middle of the upper end of the furnace body, and the The output end of the motor is connected with a rotating shaft, the lower end of the rotating shaft is located below the guide plate and a distribution block is arranged, the lower end of the guide plate is located on the periphery of the distribution block and a partition is arranged, and the lower end of the partition is located The furnace body is provided with a furnace chamber, a heat exchange chamber is provided between the outer periphery of the partition plate and the furnace body, and a furnace bottom is provided at the lower end of the furnace body below the furnace chamber, and the furnace bottom surface has a round A platform-shaped groove, the middle part of the furnace bottom is inlaid with a central plate of the furnace cavity, the middle part of the central plate of the furnace cavity is provided with a filter screen, and the outer wall of the furnace is located around the periphery of the furnace cavity and is provided with an annular air induction channel. The right end of the annular air induction channel is connected with a blower, the two sides of the annular air induction channel are connected with blowing pipes, the left end of the annular air induction channel is connected with an air volume control valve, and the lower end of the furnace body is connected with a base. A slag collection chamber is provided at the upper end of the middle part of the base, and an ash discharge valve is provided at the middle part of the slag collection chamber, and an exhaust pipe is provided through the upper part of the right wall of the furnace body, and an exhaust valve is provided on the exhaust pipe. 2. A kind of subsection preheating type incineration and cracking furnace according to claim 1, characterized in that, the one-way valve fits with the inner wall of the feed pipe, and the one-way valve is fixed on the inner wall of the feed pipe by a torsion spring. The lower end of the feed tube. 3. A kind of subsection preheating type incineration and cracking furnace according to claim 1, characterized in that, the guide plate is a truncated cylindrical structure, and the upper end of the guide plate communicates with the upper end of the furnace body, The lower end of the furnace body shrinks inwards and opens. 4. A segmented preheating type incineration and cracking furnace according to claim 1, characterized in that, the motor body and the upper end of the furnace body are welded and fixed, and the output end of the motor passes through the upper end of the furnace body and extend inward. 5. A segmented preheating type incineration and cracking furnace according to claim 1, characterized in that, the diameter of the distribution block is larger than the opening at the lower end of the guide plate. 6. A segmented preheating type incineration and cracking furnace according to claim 1, characterized in that, the blowing pipe passes through the furnace body and enters the furnace cavity, and the middle part of the blowing pipe is provided with a plurality of Evenly spaced round holes. 7. A segmented preheating type incineration and cracking furnace according to claim 1, characterized in that, the slag collection chamber passes through the bottom of the furnace body and is welded and fixed to the edge of the central plate of the furnace chamber.