High-temperature pyrolysis spraying device

Abstract

The high-temperature pyrolysis spraying device comprises a spraying decomposition tower body and a dust remover set installed on the right side of the spraying decomposition tower body, a ceramic inner container is fixedly installed on the inner wall of the spraying decomposition tower body, a high-nickel-base alloy inner wall is installed on the inner wall of the ceramic inner container, an electric heater is fixedly installed on the inner wall of the spraying decomposition tower body, and the electric heater is fixedly installed on the inner wall of the spraying decomposition tower body. The electric heater is mounted on the outer side of the ceramic liner, a two-fluid nozzle is fixedly mounted at the top of the spray decomposition tower body, and an air heater is arranged on the left side of the spray decomposition tower body. The ceramic inner container and the high nickel base alloy inner wall can resist the high temperature of about 1000 DEG C, maintain the high-temperature environment in the tower and protect the tower body, the two-fluid nozzle can effectively atomize feed liquid under the action of heated air and guarantee smooth pyrolytic reaction, in the auxiliary assembly, the heat exchange box achieves heat transfer by means of the fan and the branch pipe, and the heat transfer efficiency is improved. Heat is recycled to the air pipe through the return pipe and the one-way valve, and the energy utilization rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to high temperature decomposition device technical field more specifically, relate to high temperature pyrolysis spray device. BACKGROUND

[0002] The reaction chamber inner wall of the existing high temperature thermal decomposition spray device is also ceramic inner wall, but is integrally constituted by coating a layer of ceramic material on the heater inner wall, and long-time use can cause certain damage to the ceramic wall, since the ceramic wall cannot be replaced, only the new equipment can be replaced, and the service life is short; in addition, the existing heater adopts steam heating, and the reaction temperature is low.

[0003] Through the search of the patent with the application number CN201220220582.0, a kind of high temperature thermal decomposition spray device is disclosed, including spray decomposition furnace and the bag filter for collecting superfine powder, the spray decomposition furnace includes atomizing device, high temperature resistant furnace core pipe and heater, the inner cavity of the high temperature resistant furnace core pipe is reaction chamber, the spray head of the atomizing device is communicated with the reaction chamber, the heater is surrounded in the four sides of high temperature resistant furnace core pipe, the high temperature resistant furnace core pipe below is provided with discharging device, the discharge port of this discharging device is communicated with the inlet of bag filter, the utility model provides a kind of high temperature thermal decomposition spray device of high reaction temperature and increase detachable high temperature resistant furnace core pipe, and its service life is extended.

[0004] The structure uses ceramic inner container to provide 800 degrees Celsius operating space with maximum temperature, there is certain limitation, and the spray effect of top spray assembly is poor, after completing decomposition, heat loss is more, leading to large equipment energy consumption, pollutes external environment. UTILITY MODEL CONTENT

[0005] In view of the problems in the prior art, the utility model aims at providing a kind of high temperature pyrolysis spray device to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions.

[0007] A high-temperature pyrolysis spray device includes a spray decomposition tower body and a dust collector group installed on the right side thereof. A ceramic liner is fixedly installed on the inner wall of the spray decomposition tower body, and a high-nickel-based alloy inner wall is installed on the inner wall of the ceramic liner. An electric heater is fixedly installed on the inner wall of the spray decomposition tower body, and the electric heater is installed on the outside of the ceramic liner. A two-fluid nozzle is fixedly installed on the top of the spray decomposition tower body, and an air heater is provided on the left side of the spray decomposition tower body. The air heater is connected to the interior of the two-fluid nozzle through a pipeline. A material pipe and an air pipe are provided on the left side of the spray decomposition tower body, and both the material pipe and the air pipe are connected to the interior of the two-fluid nozzle. A delivery pipe is fixedly connected to the bottom of the spray decomposition tower body, and the other end of the delivery pipe is connected to the dust collector group. An auxiliary component is provided on the delivery pipe.

[0008] The auxiliary component includes a heat exchange box, which is fixedly installed on the delivery pipe. A fan is fixedly installed on the back of the heat exchange box, and the fan is connected to the interior of the heat exchange box. A return pipe is fixedly connected to the heat exchange box, and the other end of the return pipe is connected to the interior of the air pipe.

[0009] As a further description of the above technical solution: a one-way valve is fixedly installed on the return pipe.

[0010] As a further description of the above technical solution: the portion of the delivery pipe located inside the heat exchange box is connected to a plurality of branch pipes, and the plurality of branch pipes are arranged horizontally.

[0011] As a further description of the above technical solution: the dust collector group includes a cyclone dust collector and a bag dust collector.

[0012] As a further description of the above technical solution: evenly distributed partitions are fixedly connected to the inner wall of the heat exchange box, and the partitions are staggered.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] In the utility model, the ceramic liner and the high nickel-based alloy inner wall can withstand high temperatures of about 1000°C, maintain a high temperature environment in the tower and protect the tower body. The two-fluid nozzle can effectively atomize the liquid under the action of heated air, ensuring the smooth progress of the pyrolysis reaction. In the auxiliary components, the heat exchange box uses a fan and a branch pipe to achieve heat transfer, and recovers heat to the air pipe for reuse through a reflux pipe and a one-way valve, thereby improving energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the spray decomposition tower of the present invention;

[0017] Figure 3 The utility model discloses a Figure 2 The enlarged structure schematic diagram of A place in the middle is shown in the figure.

[0018] Figure 4 The utility model discloses an auxiliary assembly overhead section structure schematic diagram.

[0019] Mark explanation in the figure:

[0020] 1, spray decomposition tower body, 2, dust collector group, 201, cyclone dust collector, 202, cloth bag dust collector, 3, ceramic inner bag, 4, high nickel base alloy inner wall, 5, electric heater, 6, two fluid nozzles, 7, air heater, 8, material pipe, 9, gas pipe, 10, conveying pipe, 11, auxiliary assembly, 1101, heat exchange box, 1102, fan, 1103, backflow pipe, 12, check valve, 13, branch pipe, 14, partition. Specific implementation

[0021] The technical scheme in the utility model embodiment will be clearly and completely described below with the drawings in the utility model embodiment.

[0022] Please refer to Figures 1 to 4 In the utility model, high temperature pyrolysis spray device, including spray decomposition tower body 1 and installing dust collector group 2 at its right side, the inner wall of spray decomposition tower body 1 is fixedly installed with ceramic inner bag 3, the inner wall of ceramic inner bag 3 is installed with high nickel base alloy inner wall 4, the inner wall of spray decomposition tower body 1 is fixedly installed with electric heater 5, electric heater 5 is installed at the outside of ceramic inner bag 3, the top of spray decomposition tower body 1 is fixedly installed with two fluid nozzles 6, the left side of spray decomposition tower body 1 is provided with air heater 7, air heater 7 is communicated with the inside of two fluid nozzles 6 by pipeline, the left side of spray decomposition tower body 1 is provided with material pipe 8 and gas pipe 9, and material pipe 8 and gas pipe 9 are communicated with the inside of two fluid nozzles 6, the bottom of spray decomposition tower body 1 is fixedly connected with conveying pipe 10, and the other end of conveying pipe 10 is communicated with dust collector group 2, and auxiliary assembly 11 is arranged on conveying pipe 10.

[0023] Auxiliary assembly 11 includes heat exchange box 1101, heat exchange box 1101 is fixedly installed on conveying pipe 10, fan 1102 is fixedly installed on the back of heat exchange box 1101, fan 1102 is communicated with the inside of heat exchange box 1101, backflow pipe 1103 is fixedly connected on heat exchange box 1101, and the other end of backflow pipe 1103 is communicated with the inside of gas pipe 9.

[0024] Check valve 12 is fixedly installed on backflow pipe 1103, and the part of conveying pipe 10 in the inside of heat exchange box 1101 is connected with multiple branch pipes 13, and multiple branch pipes 13 are horizontally arranged, and dust collector group 2 includes cyclone dust collector 201 and cloth bag dust collector 202.

[0025] Wherein the material pipe 8 is connected with the pump body and the device for mixing raw materials, which realizes the mixing of raw materials and forms the liquid material sent into the two-fluid nozzle 6 by the pump body, and the other end of the air pipe 9 is also connected with the air supply device to send air into the inside of the spray decomposition tower body 1 as carrying gas.

[0026] The device for mixing raw materials is connected with the material pipe 8, which mixes various raw materials sufficiently to form the liquid material, at the same time, the air supply device starts to work to send air into the air pipe 9 continuously at the other end of the air pipe 9, and the pump body connected with the material pipe 8 starts to work to send the mixed liquid material to the two-fluid nozzle 6, and the air heater 7 heats the air which is sent into the inside of the two-fluid nozzle 6 through the pipeline.

[0027] At the two-fluid nozzle 6, the liquid material meets the heated air, and the liquid material is dispersed into small droplets under the action of the air to form the atomization effect due to the special structure and working principle of the two-fluid nozzle 6, and the atomized liquid material enters the inside of the spray decomposition tower body 1 together with the carrying gas from the top of the tower body, the ceramic liner 3 is installed on the inner wall of the spray decomposition tower body 1, and the high-nickel-base alloy inner wall 4 is installed on the inner wall of the ceramic liner 3, which helps to maintain the high-temperature environment in the tower body and protect the tower body itself, and the electric heater 5 fixedly installed on the inner wall of the spray decomposition tower body 1 continuously works to provide stable heat for the inside of the tower body to reach the high-temperature state, and the atomized liquid material occurs pyrolysis reaction in the high-temperature environment.

[0028] The pyrolyzed material moves to the bottom of the spray decomposition tower body 1 under the action of gravity, and then is sent to the dust collector group 2 through the bottom fixedly connected conveying pipe 10, and the auxiliary assembly 11 is arranged on the conveying pipe 10, the heat exchange box 1101 in the auxiliary assembly 11 plays a key role in the process, the heat exchange box 1101 is fixedly installed on the conveying pipe 10, and the fan 1102 at the back of the heat exchange box 1101 starts to work to make the gas in the inside of the heat exchange box 1101 flow, the part of the conveying pipe 10 located in the inside of the heat exchange box 1101 is connected with a plurality of horizontally arranged branch pipes 13, and the heat of the pyrolyzed material is transferred to the gas in the inside of the heat exchange box 1101 through the branch pipes 13 in the conveying process, the heated gas in the heat exchange box 1101 flows through the backflow pipe 1103, the one-way valve 12 is arranged on the backflow pipe 1103, and the one-way valve 12 ensures that the gas can only flow in the predetermined direction, i.e. from the heat exchange box 1101 to the air pipe 9 and back to the inside of the air pipe 9, so as to realize the recycling of the heat.

[0029] The material is transported to the dust collector group 2, which includes a cyclone dust collector 201 and a bag dust collector 202. First, the material enters the cyclone dust collector 201. The cyclone dust collector 201 uses the principle of centrifugal force to separate and collect larger particles in the material. Then, the material that has undergone preliminary dust removal enters the bag dust collector 202. The bag dust collector 202 filters the remaining fine particles through the filter bags, thereby realizing the collection of the raw materials.

[0030] In the present utility model, the ceramic liner 3 and the high nickel-based alloy inner wall 4 can withstand high temperatures of about 1000°C, maintain a high temperature environment in the tower and protect the tower body. The two-fluid nozzle 6 can effectively atomize the liquid under the action of heated air, ensuring the smooth progress of the pyrolysis reaction. In the auxiliary component 11, the heat exchange box 1101 uses the fan 1102 and the branch pipe 13 to achieve heat transfer, and recovers heat to the air pipe 9 for reuse through the return pipe 1103 and the one-way valve 12, thereby improving energy utilization.

[0031] See also Figure 4 , wherein: evenly distributed partitions 14 are fixedly connected to the inner wall of the heat exchange box 1101, and the partitions 14 are staggered.

[0032] In the present invention, the provision of the partition 14 can increase the contact time between the airflow delivered by the fan 1102 and the branch pipe 13, thereby improving the heat exchange efficiency.

[0033] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A high-temperature pyrolysis spray device, comprising a spray decomposition tower (1) and a dust collector group (2) installed on the right side thereof, characterized in that: A ceramic liner (3) is fixedly mounted on the inner wall of the spray decomposition tower body (1), a high nickel-based alloy inner wall (4) is mounted on the inner wall of the ceramic liner (3), an electric heater (5) is fixedly mounted on the inner wall of the spray decomposition tower body (1), and the electric heater (5) is mounted on the outside of the ceramic liner (3); a two-fluid nozzle (6) is fixedly mounted on the top of the spray decomposition tower body (1); an air heater (7) is provided on the left side of the spray decomposition tower body (1), and the air heater (7) is connected to the inside of the two-fluid nozzle (6) through a pipeline; a material pipe (8) and an air pipe (9) are provided on the left side of the spray decomposition tower body (1), and the material pipe (8) and the air pipe (9) are both connected to the inside of the two-fluid nozzle (6); a delivery pipe (10) is fixedly connected to the bottom of the spray decomposition tower body (1), and the other end of the delivery pipe (10) is connected to the dust collector group (2); and an auxiliary component (11) is provided on the delivery pipe (10); The auxiliary component (11) includes a heat exchange box (1101), which is fixedly mounted on the delivery pipe (10). A fan (1102) is fixedly mounted on the back of the heat exchange box (1101), and the fan (1102) is communicated with the interior of the heat exchange box (1101). A return pipe (1103) is fixedly connected to the heat exchange box (1101), and the other end of the return pipe (1103) is communicated with the interior of the air pipe (9).

2. The high-temperature pyrolysis spray device according to claim 1, characterized in that: A one-way valve (12) is fixedly installed on the return pipe (1103).

3. The high-temperature pyrolysis spray device according to claim 1, characterized in that: The portion of the delivery pipe (10) located inside the heat exchange box (1101) is connected to a plurality of branch pipes (13), and the plurality of branch pipes (13) are arranged horizontally.

4. The high-temperature pyrolysis spray device according to claim 1, characterized in that: The dust collector group (2) includes a cyclone dust collector (201) and a bag dust collector (202).

5. The high-temperature pyrolysis spray device according to claim 1, characterized in that: Evenly distributed partitions (14) are fixedly connected to the inner wall of the heat exchange box (1101), and the partitions (14) are staggered.

Images